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Transmission Trouble? Common Signs and When to Visit Our Denver Shop

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You know the sound of your car better than anyone. You know how it feels when you shift into gear. That slight hum when you accelerate onto I-25. The gentle roll when you coast through your neighborhood.

But one morning, something feels off.

The car lurches. The engine revs, but you barely move. There’s a hesitation you didn’t notice yesterday.

If your car feels different when shifting or accelerating, don’t wait for it to get worse. You could be facing the early stages of transmission trouble, and catching it early can make all the difference between a minor repair and a major rebuild.

But what does that mean? Let’s take a closer look.

What Your Transmission Actually Does

Your car’s transmission is the translator between your engine and your wheels.

Your engine generates power. But that power needs to be delivered in just the right way—at different speeds and under changing loads. That’s where the transmission comes in. It adjusts gear ratios to ensure the engine stays in its ideal power range while providing smooth acceleration and efficient fuel use.

Modern cars come with either automatic or manual transmissions (with CVTs—continuously variable transmissions—becoming more common). No matter the type, they all serve the same purpose: to keep your car shifting smoothly and performing reliably.

Transmission Trouble? Common Signs and When to Visit Our Denver Shop

When something in that system starts to go wrong, it doesn’t just affect performance—it puts your entire engine at risk. That’s why early detection matters.

Common Signs of Transmission Trouble

Transmission issues often start subtly. See it early, and it’s easier to get ahead of a breakdown. Here are some of the most common symptoms:

Delayed or Slipping Gears

You press the gas, but the car hesitates—or the RPMs jump before the car moves. These are signs your transmission might be slipping or struggling to stay in gear.

In an automatic, this often feels like the car is searching for the right gear, but never quite finding it. In a manual, it might be harder to engage a gear or the clutch may feel soft or unresponsive.

Rough or Jerky Shifts

Shifting should feel smooth. If you notice your car jerks, bucks, or makes a clunking sound during gear changes, that’s your transmission struggling to engage gears properly.

Sometimes this is caused by low or dirty transmission fluid. But it can also point to worn-out components inside the transmission itself—especially if the issue is getting worse over time.

Unusual Noises

Hear a whining, buzzing, or grinding noise that seems to follow your acceleration or gear changes? Those can all be symptoms of internal transmission issues.

Transmission sounds are different from engine noises. Pay attention to when they happen—during shifts, while idling, or when accelerating—and let us know what you hear. Those details help us diagnose the problem faster.

Transmission Fluid Leaks

Transmission fluid is vital for keeping your transmission lubricated and cool. If you notice reddish or dark brown fluid pooling under your car or along the underside near the front or middle, you might have a transmission leak.

A low fluid level can cause shifting problems, overheating, and internal damage. Even a small leak should be addressed quickly to avoid bigger repairs later.

Burning Smell

Overheating transmission fluid has a distinct, sharp, chemical odor—different from the smell of engine oil. If you catch a burning smell while driving or after parking, your transmission may be overheating or the fluid may be breaking down.

This can be caused by low fluid levels, old fluid that’s lost its lubricating properties, or internal wear. Either way, it’s a red flag that needs immediate attention.

Check Engine Light

Modern transmissions are equipped with sensors that monitor performance. If something’s off—like unusual temperature spikes, slipping, or improper shifts—your check engine light might come on.

Don’t ignore it. A quick scan can reveal whether the problem lies with your transmission or another related system.

Won’t Go Into Gear

One of the most frustrating signs of transmission failure is when your car refuses to go into gear. Whether it’s stuck in neutral, won’t reverse, or won’t respond at all, this is typically a sign of a serious problem that shouldn’t be ignored.

What Causes Transmission Trouble?

Transmissions are complex systems made up of gears, clutches, solenoids, fluid lines, sensors, and more. With so many moving parts, problems can happen for a variety of reasons:

  • Low or dirty transmission fluid – A top cause of slipping, rough shifting, and overheating.
  • Worn clutch components – In both automatic and manual systems.
  • Faulty solenoids – These regulate the flow of transmission fluid and can cause shift delays or erratic shifting.
  • Broken seals or gaskets – Often lead to fluid leaks and pressure loss.
  • Torque converter problems – Can cause shuddering, stalling, or slipping at low speeds.

Over time, wear and tear are inevitable—especially if your vehicle sees a lot of stop-and-go traffic, mountain driving, or towing heavy loads (yes, we see a lot of that in Colorado). But regular fluid changes and inspections can extend the life of your transmission significantly.

When to Visit Our Denver Shop

You know your car. If it doesn’t feel right, sounds off, or behaves strangely when shifting, it’s time to let us take a look.

Here’s when to bring it in:

  • You’ve noticed any of the signs above—especially if more than one is happening at the same time.
  • Your car has over 100,000 miles and has never had a transmission fluid change or inspection.
  • You’re planning a long trip and want peace of mind.
  • Your check engine light is on and you’ve ruled out other obvious causes.

We get it—nobody wants to hear “you’ve got transmission issues.” But the truth is, many transmission problems can be resolved with early intervention. Replacing fluid, repairing a seal, or adjusting a shift solenoid is a lot less expensive than a full transmission rebuild.

And when you do need a bigger repair, having a trusted shop on your side makes all the difference.

How We Help

At our Denver shop, we’re all about honest diagnostics and smart repairs. When you bring your car in for a transmission inspection, we’ll:

  • Scan for diagnostic codes and transmission-specific alerts
  • Test drive your vehicle to feel for performance issues
  • Check transmission fluid condition and level
  • Inspect for external leaks or damage
  • Recommend the best course of action based on your car’s condition and your budget

Whether it’s a fluid change, repair, or full rebuild, we’ll help you understand your options—and we’ll never push for more work than you need.

Let’s Get Your Car Back on Track

Transmission trouble is one of those issues you don’t want to put off. Left unchecked, small problems can turn into costly repairs. But with a little attention—and the right team on your side—you can keep your car running smoothly and avoid the stress of a breakdown.

If you’re seeing signs of shifting problems, strange noises, or just want peace of mind before summer travel, give us a call. Schedule an appointment today and let’s get to the bottom of your transmission issues before they get worse.

Because here in Denver, your car’s performance matters—whether you’re heading into the mountains or just cruising to work.

How to Prevent Common Issues with Automatic Transmissions

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It’s been a long time since most of us drove a manual transmission. Pushing the clutch in, adjusting your speed, staying in action throughout the drive – it all seems so difficult now. 

And most drivers agree. Manuals now make up less than 1 percent of all new cars sold. When people buy new cars, they want ease, they want to get in and drive. They want automatic transmissions. 

You agree? 

We get it; automatic transmissions give you a smooth, hassle-free driving experience. But like any mechanical system, they’re not without their quirks. When an automatic transmission starts acting up, it’s not only inconvenient—it can also lead to costly repairs.

Fortunately, with a bit of care and attention, you can avoid many common transmission problems. Do you know the common causes of transmission trouble? And maybe more importantly, how to recognize early warning signs and how to prevent issues before they happen?

Understanding Your Automatic Transmission

Your car’s transmission is responsible for transferring power from the engine to the wheels, adjusting gear ratios to provide the right amount of power for various driving conditions. Automatic transmissions do this seamlessly, without the need for a clutch or manual gear shifts.

How to Prevent Common Issues with Automatic Transmissions

Take a peek under the hood. You’ll find all the components for an automatic transmission there. It’s a complex system made up of:

  • Gears to allow your car to accelerate and decelerate smoothly.
  • Hydraulic system that uses transmission fluid to operate the clutch packs and control gears.
  • Torque converter to transfer engine power to the transmission while allowing the car to idle.
  • Electronic Components, sensors, and control modules to ensure precise shifting and smooth operation.

When any of these components fail, you’ll notice problems with your vehicle’s performance.

Exploring Common Issues with Automatic Transmissions

If you’ve been driving for a while, chances are you’ve experienced one of these common issues with automatic transmissions before. 

Transmission Slipping

You press the gas, but the engine revs without the car accelerating as expected. This is often due to worn-out clutch packs or low transmission fluid.

Delayed or Hard Shifting

If you feel a noticeable delay or jerk when shifting gears, it could be a sign of a failing solenoid, a dirty transmission valve body, or fluid issues.

Overheating

Excessive heat is the number one enemy of your transmission. It can cause fluid breakdown, wear on internal components, and even complete transmission failure.

Fluid Leaks

Transmission fluid is vital for cooling and lubrication. A leak can lead to low fluid levels, causing overheating and mechanical damage.

Check Engine Light

Many transmission issues trigger the check engine light. Codes related to solenoids, fluid pressure, or temperature can help pinpoint the problem.

Recognize any of the above? That’s the first step in prevention. 

How to Prevent Transmission Problems

Cars on the road are aging. That’s a testament to engineering and how much better cars are made today. Thirty years ago, the average passenger car made it just over 8 years; today it’s pushing 13.6 years. 

The problem lies with keeping a car well-maintained. The mechanics of a car may mean you can drive longer, but if you don’t keep up with maintenance, costly repairs will be close behind. The best way to avoid costly repairs is to take proactive steps to care for your transmission. Here’s how:

Check and Replace Transmission Fluid Regularly

Transmission fluid is critical for lubrication, cooling, and hydraulic operation. Over time, it degrades and collects debris. How often? Check your owner’s manual, but most vehicles need a transmission fluid change every 30,000 to 60,000 miles. Use the dipstick to ensure fluid levels are adequate and look for discoloration (dark or burnt-smelling fluid needs replacement).

Avoid Overheating Your Transmission

Heat is a major cause of transmission wear. Driving habits and external conditions can significantly affect the temperature. Install an auxiliary transmission cooler if you regularly tow or haul heavy loads. Avoid stop-and-go driving in hot weather whenever possible. Don’t “ride” the brakes or overuse the accelerator.

Be Mindful of Driving Habits

How you drive affects your transmission’s lifespan. Avoid sudden starts and stops, which stress the transmission. Come to a complete stop before shifting between reverse and drive. Don’t drive with your hand on the gear selector—it can lead to unnecessary wear on internal components.

Fix Leaks Immediately

Transmission leaks often start small but can lead to major damage if ignored. Check for puddles of red or brown fluid under your car. Inspect seals, gaskets, and cooler lines regularly. Have any leaks repaired promptly by a professional mechanic.

Service the Transmission on Schedule

Regular maintenance is key to preventing transmission problems. Have the transmission inspected during routine service appointments. Replace the transmission filter (if your car has one) and clean the pan to remove debris. Update the software for electronic control modules, if recommended by your car’s manufacturer.

Signs Your Transmission Needs Attention

We say it a lot around here: Spending a few minutes listening and observing your car each day will benefit you. Pilots do a preflight check before every flight. While that might not be necessary when you’re in and out of your car each day, a couple times a week could save you. That’s because even with good maintenance, problems can still arise. 

Recognizing early warning signs can help you address issues before they become serious. You might notice:

  • Shuddering or Vibration: Often felt during acceleration, this can indicate torque converter issues or worn-out transmission mounts.
  • Unusual Noises: Grinding, whining, or humming noises may suggest internal component wear.
  • Burning Smell: Overheated transmission fluid produces a distinct burnt odor.
  • Fluid Discoloration: Healthy transmission fluid is typically red or pink. Dark or brown fluid indicates contamination.
  • Gear Slippage or Delays: If your car struggles to shift gears or slips out of gear, have it inspected immediately.

When to Call a Professional

While some maintenance tasks are DIY-friendly, most transmission issues require professional expertise:

  • Persistent Symptoms: If you experience ongoing slipping, hard shifts, or overheating, it’s time to schedule an inspection.
  • Fluid Flush or Replacement: Flushing the transmission requires specialized equipment and should only be done by a trained mechanic.
  • Software Updates: Modern transmissions rely on complex software that may need updates or reprogramming.

One of our professional mechanics will use diagnostic tools to identify problems, recommend repairs, and ensure your transmission remains in peak condition.

If your transmission is acting up or you’re overdue for service, don’t wait—schedule an appointment with us today. Our expert mechanics can diagnose, repair, and maintain your transmission, keeping you on the road with confidence.

Understanding the Signs of Transmission Problems and How to Fix Them

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Imagine your life without your car. Hard to do, isn’t it?

You jump behind the wheel in the morning, and it’s go-go all day. You start it and stop it. You brake for lights and stop signs. You throw it into gear as you drive away. You put it into reverse as you back out of parking spaces. 

But what if you notice a problem? What if you try to put it into gear and it slips? Or refuses to switch gears? 

That’s a sign of transmission problems. 

What Is A Transmission?

In simple terms, a transmission is a mechanical component that transmits power from the engine to the wheels. Its primary function is to ensure that the engine operates within an optimal range of speeds while providing a range of output speeds to the wheels. This allows the vehicle to accelerate smoothly from a standstill to high speeds and to operate efficiently under various driving conditions.

Today, we almost always operate with automatic transmissions. This is where the vehicle automatically changes gears based on speed and engine load without the driver needing to intervene.

If you drive a sports car or an older vehicle, you might have driven with a manual transmission. This is where the driver manually shifts gears using a clutch and gear stick. Continuously variable transmissions and dual-clutch transmissions exist too, though they aren’t as common. 

Understanding the Signs of Transmission Problems and How to Fix Them

Signs Of Transmission Problems  

Transmissions work … until they don’t. Luckily, transmission failure doesn’t usually happen without warning. 

Listen to your car. Pay attention. It rarely goes from working to nothing without warning. 

Noises

This is one of the most popular ways people start to notice problems. They turn the key, they put it in drive, and hear something unusual. When you know how your car usually sounds, it’s easy to pick up when things don’t sound quite right. 

Don’t ignore these sounds. Clunking, humming, or whining are all indicators of automatic transmission problems. If you notice it when your car is shifting gears, it is a clear indicator of problems. It’s time for a mechanic to look it over. 

Smells

What’s that smell? If it seems to be coming from your engine compartment, it’s a sure sign of a problem. As transmission fluid runs low or wears down, it overheats and starts to burn. It can create a burning smell that’s hard to ignore. The longer it operates under these conditions, the more damage will occur with your engine. A hot engine contributes to early wear and corrosion. 

Of course, smells can come from many places. Maybe a trapped plastic bag made its way up and melted inside the engine compartment. Maybe dripping antifreeze is causing a problem. Whatever the case, treat the smell as a problem, and get it checked out quickly. 

Check Engine Light

There can be dozens of little lights on your dashboard, all blinking for your attention. Each of them means something different. But the check engine light is often the one that confuses people the most. It can tell you the gas cap is loose, you have a faulty oxygen sensor, or you have transmission problems. Big difference, right?

If the transmission is triggering a dashboard icon, it’s sensing jerks and tremors you might not notice until later. It’s picking up these subtle changes, alerting you to potential problems. If you get it checked quickly, it might remain a minor problem, and be an easier, less expensive fix. 

Shifting Problems

When your car is working correctly, it slides into gear every time you adjust the gears. Problems arise when you notice that the slide isn’t working quite the way it used to. It hesitates. It gives you no response. Ignore this, and there may come a time when the transmission leaves you stranded, without being able to get it into gear. 

Fluid Leaks

Your vehicle has several essential fluids to keep it operating and lubricated. If fluids break down or start to leak, the system weakens and eventually becomes inoperable. 

A transmission fluid leak is easy to spot. It has a unique red color and sweet smell. If it’s degrading, it will take on a darker red color and start to have a toasted smell. 

This is something you can easily watch for yourself. Take a look at your driveway as you drive away. If you see the red color, your transmission fluid is leaking. It’s time to bring it in right away. 

Won’t Go Into Gear

You go to move from park to reverse or drive, and it refuses to go into gear. It’s often a fluid issue. If the fluid is clean, it might be a problem with the shift cables or clutch. The computer system could also be the issue. 

If it is the computer system, you can give your car a reboot. Disconnect the battery for a few minutes, and the computer reboots once it’s reengaged. If you still have a problem, it’s one of the others. You’ll need to get your car into see one of our mechanics to fix the problem. 

Slipping Gears

With a manual transmission, you, the driver, change gears. With an automatic, you can choose reverse, neutral, or drive, then the transmission handles the rest. 

If your car is slipping between gears without any change from you, it’s dangerous for you and the engine. This could be caused by low fluids or worn down transmission components that are allowing the gear to slip. Get your vehicle into our repair shop to avoid dangerous situations. 

Pay Attention and Don’t Miss These Transmission Problems

If you’ve noticed any of these transmission problems, it’s time to get it checked out. Whether you hear it, smell it, or notice it as you drive, don’t put it off. Minor problems can be easier and less expensive to fix. Bigger problems risk leaving you stranded by the side of the road. 

Have questions? We’re here to help. Come in today and we’ll help you get to the root of the problem. 

The Importance of Transmission Service: What You Need to Know

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Some car maintenance words are so … challenging. You hear them. You play along – of course, you know what they mean. Who doesn’t know what a differential is? Or a serpentine belt, a tie rod, or a caliper. A transmission? Well …

We get it. Not everyone is meant to be a mechanic. You have a lot going on in your life. You’re running around from morning til night. You don’t need to know the inner workings of a transmission. But what you do need to know is the importance of transmission service. 

A Car Transmission – The Basics

When you hear the term transmission, think about wheels. A transmission is a mechanical component that is responsible for transmitting power from the engine down to the wheels. It gives you the ability to control the car’s speed and torque by shifting gears. This allows the engine to operate efficiently across various speeds and driving conditions. 

This is what allows you to accelerate, decelerate, and maintain speed. 

You may be driving an automatic transmission now, but there are several other types. A manual transmission allows you to manually shift gears using a clutch pedal and a gear stick. A continuously variable transmission provides seamless acceleration without distinct gear shifts by using a system of pulleys and belts. A dual-clutch transmission uses two separate clutches for odd and even gear sets, creating faster and smoother gear shifts. 

If your brain is already moving to “too much information,” we get it. We’re not going to give you the advanced version of how a transmission works. Suffice it to say that all you need to know is that your car won’t go if the transmission isn’t operating well. That’s why transmission service is so important. 

The Importance of Transmission Service: What You Need to Know

Is It Time To Schedule Transmission Service? 

If you’ve been driving for any length of time, you know cars need regular service to keep operating. With thousands of parts, each system is set up on its own schedule. The best way to learn about each system is to check with your owner’s manual. Of course, getting to know a local mechanic can help too. They can keep you updated on how well your car is operating, and what you can expect in the future. 

Transmissions aren’t like oil changes – they don’t need servicing every few thousand miles. That said, most makes and models do suggest transmissions are serviced every 30,000 to 60,000 miles or so, just to ensure they’re working well. 

This is where a mechanic will change transmission fluid and filter, inspect the transmission pan, and check for leaks and other issues. They’ll look for any signs or wear or damage, and evaluate it for proper operation. 

The 30,000 to 60,000 rule is just a suggestion. Think about the way you drive. If you frequently drive under severe conditions – towing, driving in heavy traffic, or in extreme temperatures – you might need to bring your car in more frequently. 

What a Mechanic Will Do During a Transmission Service

You bring your vehicle in for a transmission service. A mechanic will start with a transmission fluid change. 

This means the mechanic will drain the old transmission fluid and refill it with new fluid. This helps to remove contaminants and ensure the transmission operates smoothly. 

Transmission fluid is essential for a variety of reasons. 

  • It lubricates the moving parts inside the transmission, reducing friction and preventing wear and tear. 
  • It helps dissipate heat generated by the transmission during operation, preventing overheating, which can cause damage.
  • In automatic transmissions, the fluid acts as a hydraulic fluid, enabling the transmission to shift gears smoothly.
  • It contains detergents and additives that help clean and protect the internal components from corrosion and buildup of debris.
  • It ensures the transmission operates efficiently, providing smoother gear shifts and better overall performance.
  • It prevents damage. Old, degraded fluid can lead to overheating, slipping, or harsh shifting, which can cause significant damage to the transmission components.

That’s a lot of reasons to upgrade your transmission fluid, right? If for no other reason than to give your car new transmission fluid – that should be reason enough to bring it in for regular servicing. Of course, a mechanic does more than that. 

They’ll replace the transmission filter, which helps keep the fluid clean by trapping debris and particles. They’ll remove the transmission pan, clean it, and inspect it for any metal shavings or debris that can indicate wear or damage. They’ll check for fluid leaks. They’ll inspect and adjust bands and clutches and clutches and gears, just to ensure everything is working the way it should. 

And that’s all that really matters. When you drive away, you want the peace of mind that comes with knowing your car is in good shape and won’t need servicing again for a long while. 

You’re good to go, and your passengers will be safe and secure as you go about your busy days. 

Your Transmission Is Saying: It’s Time For Servicing

The easiest way is by watching your mileage – if it’s been 30,000 to 60,000 miles since your last transmission service, it may be time. Of course, vehicles are built to alert you when things are starting to go wrong. 

That trusty check engine light on your dashboard is a catch-all for all sorts of vehicle issues. When that pops on, schedule a visit. It helps keep your car in tip-top shape, fixing minor issues before they grow more significant. 

Pay attention to strange noises, like whining, humming, clunking, especially when shifting gears. Or if you notice anything funny with the way the car shifts – it might slip out of gear while driving, or delay when shifting from park to drive. These are all signs the transmission needs attention. 

See a leak on your driveway where you normally park your car? If it’s a reddish color, it can indicate a transmission fluid leak. You can also pop the hood to see if you notice leaks. If you regularly check the transmission fluid’s color and consistency, it should be a clear reddish color. If it’s dark, dirty, or has a burnt smell, it’s time for a change. 

Bottom line: if something “feels” off, it’s best to bring it in. 

You know your car. You know if something doesn’t feel right. And if you notice any of the signs above, it might be your transmission. Bring it in, we’ll fix it, and have you on the road again. 

Isn’t that what’s most important? 

Decoding Common Signs of Transmission Problems Before They Escalate

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When you get into your car, you expect it to go. You’ve got a busy day ahead, with lots to think about on your drive into work. 

But what if your car doesn’t go? 

Picture this: You cruise onto the highway, and your engine starts racing. You can hear the transmission isn’t shifting gears. It whines and grinds, but no movement. You know something is wrong. You pull over to the side of the road … it’s going to be a long day. 

Transmission problems can be the most stressful, expensive repair issues to deal with. 

But the good news is you don’t have to wait for transmission problems to escalate before you take action. Warning signs start to appear long before problems occur. Let’s cover a few of them so you can start taking action now. 

Ignoring Maintenance

One of the most common reasons transmissions fail for all vehicles is not following manufacturers’ maintenance recommendations when caring for the engine and transmission. They push the mileage when scheduling fluid and filter changes. They push off maintenance until they “have more time.” 

Here in Colorado, that can be dangerous, especially if you enjoy our outdoor lifestyle. You frequently head up into the hills for skiing, hiking, and biking. You tow campers and boats for a weekend of play. These harsh conditions are taking a toll on your vehicle’s inner-workings. Without proper fluid levels, it no longer lubricates properly. Without clean filters, your vehicle won’t cool properly, leading to overheating, failure, and a host of other mechanical issues.  

Decoding Common Signs of Transmission Problems Before They Escalate

Fluid Leaks

The second most common way your transmission will warn you of pending issues is through a transmission leak. Transmission fluid leaks can occur at various points in the transmission system, including seals, gaskets, or cooler lines. Leaks lead to low fluid, burnt fluid, overheating, and eventual damage that will no longer be repairable by just adding fluid. 

A transmission fluid leak is usually red, ranging from light pink to a brownish color, depending on its age. If you notice this color leaking from your car and pooling underneath the front of your car, it’s likely a transmission leak. Identifying the source of the leak and repairing it promptly is crucial to maintaining proper transmission function and preventing fluid loss, which can lead to overheating and damage. If it isn’t caught early, it can lead to needing a replacement or rebuilt transmission. 

Strange Noises

Vehicle noises differ depending on where the problem lies. But if you hear anything out of the ordinary, pay attention. Can you describe it as humming, buzzing, whining, or clunking? Those are the most common ways people describe transmission problems. With hundreds of parts inside the transmission system, even one loose bearing can throw the entire system off. Each sound signals a different potential issue:

  • Grinding noises typically occur when there’s a problem with the gears, such as worn synchros or teeth. These sounds often indicate that the transmission is having difficulty synchronizing the gears, which can lead to further damage if not addressed.
  • Whining or humming noises might indicate low transmission fluid or a worn-out bearing. Both scenarios can lead to serious transmission issues if left unattended.
  • Clunking sounds when shifting gears could be a sign of worn-out or damaged transmission mounts, which can cause the transmission to shift unexpectedly and result in further damage to surrounding components.

Only  a thorough inspection of the system can isolate where the noise is coming from and point to where the problem originates. Trust your mechanic to get to the root of the problem. 

Warning Lights

Thank goodness for modern cars. Their technological advancements have done wonders helping you solve issues before they escalate and turn into bigger problems. Depending on your make and model, you may have 20 to 30 dashboard lights ready and waiting to alert you to potential problems. Don’t ignore them – they light up for a reason. 

Dashboard warning lights such as the Check Engine Light or Transmission Temperature Light are designed to alert you to potential issues with the transmission system. The Check Engine Light is one of the most common lights to illuminate; it can signal many different issues in your car. Bringing your car in early for an inspection means we’ll catch the problem before it escalates, potentially saving you money on more severe problems. 

Slipping Gears

Do you hear the engine revving higher than it should when driving down the road? Does it lack power or sound like it’s slipping gears? People often describe this in many ways, yet you’ll know when it feels like your car is clunking as you speed up and slow down. 

Transmission slipping occurs when the transmission fails to maintain a consistent gear, resulting in the engine revving higher than usual without a corresponding increase in vehicle speed. This can be caused by many things, including worn-out clutch bands, clutch packs, or torque converters. You can prevent slipping transmission by maintaining your fluid levels and ensuring you don’t have any leaks. When you find a problem, get it fixed immediately. 

Burning Smell

A burning smell is never a good sign. In most cases, a burning smell comes from overheated transmission fluid, or leaking fluid. Low fluid levels cause excessive friction which exacerbates the situation. Ignoring this smell could lead to severe transmission damage or failure.

Solenoid Issues

Solenoids in cars perform many different functions, from helping start the engine to assisting in shifting gears. They control upshifting and downshifting while you drive. If solenoids are damaged or wear down, it can damage your transmission, cause shifting problems, leading to diagnostic codes showing up in your vehicle’s computer. 

A car’s computer sends 100s, if not 1000s, of signals to the solenoids a second, telling your vehicle how much pressure it needs, when to shift, how fast to shift. This level of action eventually wears parts down, causing you to notice it in the way your car shifts and moves. It may be as simple as replacing the solenoid if it has become defective. 

Do you Have Transmission Problems? 

From the moment you notice a first sign of a problem, your best course of action is to schedule an inspection. It’s the easiest way to stop issues early before they rise in significance and escalate to a more costly problem. 

Have a transmission issue? Let’s chat. Give us a call, and we can schedule a time to inspect your car, find the issue, and make the repair. It’s the best way to get you on the road again. It’s the best way to bring peace of mind to your drive. 

Transmission Maintenance Myths: Separating Fact from Fiction to Ensure Longevity and Reliability

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Cars are amazing, aren’t they? They get you where you’re going, and you usually don’t think much about them. Fill them up with gas, and they run.  

Newer models run like never before. Parts and systems are designed to last tens of thousands of miles. With the right amount of maintenance, you might not have to think about some of the systems at all. 

Take the transmission system, for example. A transmission system enables the vehicle to change gears, which gives you the ability to achieve different speeds. It regulates the distribution of power from the engine to each of the wheels. It’s a delicate balance of controlling the optimal range of RPMs (revolutions per minute) while providing the necessary torque (rotational force)to make the wheels move forward. 

Whether you have an automatic or a manual transmission (there aren’t many manual cars left on the road), a car can’t operate without it. 

Still, many drivers don’t fully understand the transmission system, or how to maintain it over time. They may believe one of the many myths drivers fall for, putting their cars in jeopardy of having significant transmission problems. 

Have you fallen for one of these transmission maintenance myths?

Myth #1: Transmission fluid lasts forever

While transmission fluid isn’t something you’ll have to replace routinely like motor oil, it is something that might need to be changed a time or two during its lifetime. 

Transmission Maintenance Myths: Separating Fact from Fiction to Ensure Longevity and Reliability

Traditional or conventional automatic transmission fluids typically need to be replaced every 30,000 to 60,000 miles. Some older vehicles may require more frequent changes. Newer synthetic transmission fluids often last longer and can normally go up to 100,000 miles or more before needing replacement. However, it’s essential to consult the vehicle’s manual for specific recommendations.

It’s crucial to follow the manufacturer’s recommended maintenance schedule outlined in the vehicle’s manual. They may specify both a mileage interval and a time interval (e.g., every 3 years), whichever comes first. The way you drive matters too. Heavy towing, frequent stop-and-go driving, or driving in extreme temperatures can accelerate transmission fluid degradation, necessitating more frequent changes.

Myth #2: Using additives can fix transmission problems

Transmission problems can be costly. That’s why there will always be companies that jump in offering options. Like transmission additives. They’ll make promises like:

  • Restores smooth shifting
  • Stops leaks
  • Fixes transmission slipping

Transmission fluid has several vital roles. 

  • It acts as a hydraulic fluid to allow shifting
  • It protects gears and bearings against wear and tear
  • It adds friction to ensure smooth, consistent shifting
  • It manages heat buildup

These additives promise to fix potential problems, but tests continually show transmission performance can become worse over time. They might work for a short time period, but they don’t continue to work well, and can even cause more damage to the transmission. That’s why most vehicle and transmission manufacturers warn against using them. 

If you have transmission problems, visit your mechanic to have the problem fixed rather than wasting money on a short-term fix. 

Myth #3: Flushes are always necessary

Transmission fluid flushes are one of those services that might be necessary … and might not. A lot of it depends on your car and the way you drive. 

Start by checking with your owner’s manual. Manufacturers will have guidelines for when transmission fluid should be replaced and how often. 

There are two approaches: a flush and a change. Flushing involves flushing the system with a cleaning solution, effectively flushing out old fluides with any accumulated contaminants. A flush will remove larger portions of the old fluid, as well as debris and contaminants from within the system. However, flushes may do more harm than good. 

A transmission flush involves forcefully pushing cleaning solutions through the transmission to remove contaminants. This process can dislodge debris and cause it to circulate throughout the transmission, potentially causing damage to sensitive components. The high-pressure nature of transmission flushes can damage seals and gaskets within the transmission, leading to leaks and other issues.

If the transmission is already experiencing issues such as slipping or rough shifting, a flush may not solve the underlying problem and could even exacerbate it.

This is why many mechanics recommend transmission changes rather than a flush. A transmission fluid change involves draining the old transmission fluid from the transmission pan and refilling it with new fluid. The technician will typically remove the transmission pan to access the fluid, drain it, replace the transmission filter (if applicable), and refill the transmission with new fluid.

Myth #4: Transmission problems mean it needs to be replaced 

Here’s the thing: transmission problems can manifest in dozens of ways. This is why it’s a good idea to keep your eyes and ears open for possible problems so you can spot them before minor issues become significant. Like most things, transmission problems start small, but can escalate quickly. 

Where does it start? Often, it might show up as a patch of red liquid underneath your car. This is a sign of a transmission fluid leak. 

Or maybe it manifests as a funny noise – humming, buzzing, grinding, or whirring. Maybe you’ll start to notice difficulty shifting, or slipping out of gear. 

Don’t assume the worst – these aren’t signs your transmission needs replacing. Instead, it’s an indication there’s an issue with your car. A technician can assess the problem, pinpoint what’s causing it, and provide you with the necessary solution. Remember, it’s always better to catch a problem early to avoid more serious problems down the road. 

Skip the Myths – Find a Transmission Service Technician you can Trust

It’s easy to fall prey to misinformation and myths that could potentially harm your vehicle. Rather than getting caught up in misconceptions, the key to ensuring the health and longevity of your transmission lies in finding a transmission service technician you can trust. 

A reputable transmission service technician has the knowledge and experience to diagnose transmission issues accurately and recommend appropriate maintenance or repairs.

Instead of relying on hearsay or questionable advice, a trusted technician will provide professional recommendations based on the specific needs of your vehicle, taking into account factors such as mileage, driving habits, and the condition of the transmission.

By choosing a trustworthy technician, you can rest assured that your transmission will receive quality service and workmanship, whether it’s a routine fluid change or a more complex repair. A reliable technician values honesty and transparency, providing clear explanations of the work that needs to be done and offering transparent pricing without hidden fees or unnecessary upsells. 

Ultimately, working with a transmission service technician you can trust provides peace of mind, knowing that your vehicle is in capable hands and that maintenance and repairs are being performed to the highest standards.

Can we offer you advice on your transmission? 

The Critical Role of Transmission Fluid in Vehicle Performance

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It’s great when you jump in your car and it goes. You have time to think about your day ahead, think about your plans for the weekend, maybe plan dinner for later that evening. 

It’s not so great when you get into your car and notice a problem. It sputters. It jerks. Or maybe it doesn’t start at all. 

Performance is a big deal. You’ve purchased your vehicle to provide reliable transportation. Transmission fluid plays a critical role in performance. So, how do you know if transmission fluid is the problem?

Let’s start by understanding what transmission fluid does

When it comes to the smooth operation of your vehicle, your mind might drift to steering or brakes. Transmission fluid may not grab the spotlight, but its role is crucial in ensuring your vehicle functions at its best.

Transmission fluid serves as a lubricant, reducing friction between the moving parts within your vehicle’s transmission system. Think of it as the lifeblood that keeps things running smoothly. Without proper lubrication, the transmission components would grind against each other, leading to wear, heat, and potential damage.

The Critical Role of Transmission Fluid in Vehicle Performance

Beyond just lubrication, transmission fluid also acts as a coolant, helping to dissipate the heat generated during the transmission process. As your vehicle moves, the transmission works hard, and this generates heat. Transmission fluid plays a key role in preventing overheating, ensuring that your vehicle operates within the optimal temperature range.

As it continues to move, transmission fluid facilitates smooth gear shifts. It helps in transferring power from the engine to the transmission and ultimately to the wheels, allowing your vehicle to accelerate and decelerate seamlessly.

What transmission fluid is

Transmission fluid is a specialized lubricant designed for the unique requirements of automatic and manual transmissions in vehicles. The composition of transmission fluid can vary depending on the type and brand, but generally, it consists of a combination of base oils and additives. 

Base oils consist of:

  • Mineral oil – Traditional transmission fluids often use mineral oil derived from crude oil. These fluids provide adequate lubrication but may require more frequent changes compared to synthetic alternatives.
  • Synthetic oil – Synthetic transmission fluids are engineered in a laboratory, offering superior performance and stability across a wide range of temperatures. They also tend to have longer lifespans and provide better protection under extreme conditions.

Additives are dependent on the manufacturer, but may contain:

  • Friction modifiers – These additives help regulate friction between moving parts, ensuring smooth gear shifts and reducing wear on transmission components.
  • Viscosity index improvers – These additives maintain the fluid’s viscosity across different temperature ranges, ensuring consistent performance in both cold and hot conditions.
  • Detergents and dispersants – These additives keep the transmission clean by preventing the buildup of sludge, varnish, and other contaminants. They also help to suspend and disperse particles to be filtered out.
  • Anti-Wear Agents – These additives provide an additional layer of protection to prevent wear on metal surfaces within the transmission.
  • Anti-oxidation and anti-corrosion agents – These additives protect the transmission fluid and the transmission system components from oxidative damage and corrosion.
  • Seal conditioners – These additives help maintain the flexibility of seals, preventing leaks and ensuring a proper seal between moving parts.

Always refer to your vehicle’s owner’s manual or consult with a professional mechanic to ensure you’re using the correct transmission fluid for your specific vehicle. 

Critical signs transmission fluid is running low

As you would expect, if transmission fluid isn’t kept at proper levels, your car’s performance will start to deteriorate. Low transmission fluid levels can lead to various issues that, if left unaddressed, may result in significant damage to the transmission system. You should watch out for:

Slipping Gears

One of the most common signs of low transmission fluid is difficulty staying in gear or unexpected slipping between gears. If you notice your vehicle hesitating or changing gears unexpectedly, it may be a sign that the transmission fluid is not providing sufficient hydraulic pressure.

Delayed or Rough Shifting

Low transmission fluid can lead to delayed or rough shifts when changing gears. You may experience a noticeable pause or a jolt during acceleration.

Unusual Noises

Inadequate lubrication due to low transmission fluid levels can result in increased friction and wear on the transmission components. This may lead to unusual noises such as whining, grinding, or clunking during gear changes.

Overheating

Transmission fluid also serves as a coolant for the transmission system. Insufficient fluid can cause the transmission to overheat, leading to potential damage. If you notice your vehicle’s temperature gauge climbing or receive an overheating warning, it could be related to low transmission fluid.

Fluid Leaks

Keep an eye out for red or brownish puddles under your vehicle, as these could indicate a transmission fluid leak. Leaks may occur due to a damaged seal or gasket, and if left unaddressed, they can lead to low fluid levels.

Dashboard Warning Light

Your vehicle is equipped with various warning lights. It may have a “check transmission” light, or rely on the “check engine” light for anything to do with engine performance. If this light illuminates on your dashboard, it could indicate that the transmission is running too hot, potentially due to low fluid levels.

These lights also store a code in the car’s computer further identifying the problem. 

  • Code P0218 – transmission is overheating
  • Code P0700  – a general code for transmission control system malfunction
  • Code P0706 – a transmission range sensor that provides a neutral safety switch that ensures you can start the car in neutral or park
  • Code P0729 thru P0736 – a gear ratio problem indicator 
  • Code P0750 thru P0770 – a transmission solenoid failure
  • Code P0868 – for low transmission fluid pressure

No matter how big or small the problem, if a computer sensor is issuing a warning, it’s time to bring your vehicle in for maintenance. 

Burning Smell

Insufficient transmission fluid can result in increased friction and heat within the transmission system. If you notice a burning smell while driving, especially when the vehicle is in gear, it could be a sign of overheating due to low fluid.

If you experience any of these signs, it’s essential to address the issue promptly. Ignoring low transmission fluid levels can lead to severe damage to the transmission, requiring costly repairs or replacements. 

If you suspect a problem with your transmission, consult with a qualified mechanic for a proper diagnosis and necessary repairs. 

Regular maintenance, including checking and maintaining proper transmission fluid levels, can help prevent these issues and ensure the continued smooth operation of your vehicle.

Torque Converters and Their Role in Transmissions

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Most drivers fall into one of two categories. 

1. It’s a means of transportation. They expect it to work when they get in and don’t think much about the mechanics of how it works. 

2. Aren’t they just marvels of modern engineering? If you’ve ever found yourself awestruck by the sheer might and agility of these metal beasts, you’re not alone! You wonder what makes them tick, glide, and roar smoothly on those bustling roads. 

You’re reading this. Chances are you want a deeper understanding of what makes your car run. So let’s dive deeper beyond the basics into a torque converter. They play a pivotal role in transmissions. 

Understanding Torque

What exactly is torque? Picture this: you’re turning a wrench, and that force you’re applying in the circular motion – that’s torque! In our beloved vehicles, torque is the rotational power produced by the engine. It’s this force that enables your car to accelerate and drive uphill without breaking a sweat.

But, how does this rotational power from the engine smoothly propel the vehicle? Enter the unsung hero of our tale: the torque converter.

What a Torque Converter Does in Your Car

Nestled between the engine and the transmission, the torque converter takes on the crucial task of managing and transferring the engine’s torque to the transmission, ensuring your ride is smooth and easy. It’s like the messenger, faithfully relaying the energy from the engine to the wheels, ensuring your vehicle moves forward with grace and power.

Torque Converters and Their Role in Transmissions

The torque converter allows your car to stop and start without needing to shift gears manually. If you’ve ever used a manual transmission and a clutch system to shift gears – that’s what the torque converter does! It ensures that even when your vehicle comes to a halt, the engine keeps purring, ready to leap into action at your command.

Torque Converter Parts and Their Roles

In order to make this process happen, the torque converter sits in place, moving into action every time you press down on the accelerator. Let’s peel back the layers and peer into the integral components of a torque converter:

Impeller

Residing close to the engine, the impeller is like the frontman of a band, setting the pace for everyone else. When the motor spins, so does the impeller, sending transmission fluid whirling towards the turbine.

Turbine

Acting as the counterpart to the impeller, the turbine takes the fluid from the impeller and spins, which, in turn, propels the transmission, getting the vehicle to move.

Stator

The mediator in our setup, the stator, redirects the fluid from the turbine back to the impeller, ensuring that everything runs in a cohesive, harmonious cycle.

Clutch

Some torque converters feature a clutch, designed to lock the turbine and impeller together at higher speeds, ensuring that your ride is efficiently cruising with minimal energy loss.

Fluid

The unsung hero of the setup, the transmission fluid, is crucial in transferring the torque from the impeller to the turbine, essentially driving the whole operation.

These components harmoniously collaborate to ensure your car moves smoothly, providing you with a seamless driving experience.

Signs of a Failing Torque Converter

With such a pivotal role, it’s crucial that the torque converter is always in top form. So, how do you know when it’s crying out for help? Here are some telltale signs:

Overheating Transmission

When the transmission overheats, it’s often a sign that the torque converter isn’t doing its job properly. The impeller might be failing to propel the transmission fluid effectively, leading to insufficient cooling and lubrication within the transmission. Consistent overheating is not just a symptom but a catalyst for further damage, potentially harming seals, clutches, and other vital components.

Vehicle Won’t Shift

Difficulty in shifting gears can emerge from various transmission issues, and one significant contributor is the torque converter. If the converter is malfunctioning, it can create an imbalanced fluid pressure, making it strenuous for the gears to engage or disengage. The synchronized dance between the engine and transmission becomes chaotic, disrupting your smooth ride and potentially harming your vehicle’s gearbox in the long run.

Slipping Between Gears

When your vehicle unexplainably slips between gears or is reluctant to stay in gear, the torque converter may be unable to maintain adequate hydraulic pressure, which is vital for maintaining gear positions. This not only hampers the driving experience but also poses a risk, as it can impair the driver’s control over the vehicle, especially during crucial moments like overtaking or navigating through traffic.

Loss of Acceleration

When your vehicle fails to accelerate as it once did, the torque converter could be unable to efficiently transfer the engine’s power to the transmission. This lag in response, especially in scenarios like merging onto highways, can be hazardous. Moreover, continuous stress on the engine to deliver more power than the torque converter can handle might lead to an overall decline in vehicle performance.

Transmission Fluid Leak

Those unexpected puddles under your vehicle could be a symptom of a compromised torque converter seal or a crack in the converter itself. Leaks are more than just a mess; they indicate that your vehicle is losing vital transmission fluid, which is pivotal for keeping the entire system cool and lubricated. Ignoring leaks can fast-track your vehicle toward severe transmission damages and potential breakdowns.

Bad Transmission Fluid

Murky, burnt-smelling transmission fluid is indicative of potential issues within the torque converter. When the converter struggles or fails, it can lead to overheated transmission fluid, which in turn darkens and acquires a burnt odor. This deteriorated fluid can inflict wear and tear on the entire transmission system, gradually decimating its efficiency and longevity.

Have a question? Bring your car in

A failing torque converter isn’t just an inconvenience; it’s a serious issue that could lead to further, more complex transmission problems down the road. 

In the realm of auto maintenance, knowledge is your best ally. Being mindful of these signs and ensuring prompt action safeguards not only the health of your vehicle but also your safety. 

Whenever you sense your vehicle whispering these distress signals, it’s time to consult with professionals. Your vehicle’s longevity, performance, and your safety on the road hinge significantly on the health of components like the torque converter.

So, if you’re noticing any of these signs, it’s crucial to bring your vehicle to a trusted auto repair shop, such as ours, where we’re all about maintaining and ensuring your ride is always smooth, powerful, and reliable.

How can we help you stay safe on the road?

Transmission Maintenance for Longevity

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What do you think of when you get into your car? Turning up the heat. Rolling down the window. Adjusting the radio. If you’re like most of us, your vehicle’s transmission might not be the first thing on your mind. 

Occasionally it should. With thousands of moving parts, keeping your car running takes routine maintenance. The transmission is no exception. It can save you a lot of time, money, and headaches down the road. 

A Driver’s Explanation to What a Transmission Does

What exactly does a transmission do? In simple terms, your vehicle’s transmission is responsible for transferring power from the engine to the wheels, allowing your car to move forward and backward. It’s like the middleman between your engine’s power and your wheels’ movement, ensuring your vehicle operates smoothly at different speeds.

Its primary job is to manage the distribution of power from the engine to the wheels, ensuring your car moves smoothly at different speeds and handles various driving conditions. Here’s how it accomplishes this task:

Power Generation – It all starts with the engine. Inside your car’s engine, fuel and air are mixed and ignited, creating controlled explosions in the cylinders. These explosions generate power, turning the engine’s crankshaft.

Transmission Components – Your car’s transmission is made up of several key components. These include the torque converter (in automatic transmissions) or the clutch (in manual transmissions), gears, a gear selector, and a driveshaft.

Transmission Fluid (in Automatic Transmissions) – Automatic transmissions use a special fluid to transfer power. This fluid acts as both a lubricant and a hydraulic medium, helping to transmit power and keep the transmission cool.

Transmission Maintenance for Longevity

Gears – Gears are the heart of the transmission. They come in different sizes and ratios. In simple terms, think of gears as different-sized wheels that mesh together. Each gear represents a different speed or ratio.

Torque Converter (in Automatic Transmissions) – In automatic transmissions, there’s a torque converter between the engine and the transmission. It’s a fluid coupling device that allows the engine to keep running even when the car is stopped. When you press the accelerator, the torque converter transfers power to the transmission.

Clutch (in Manual Transmissions) – In manual transmissions, a clutch connects and disconnects the engine from the transmission. When you press the clutch pedal, it disengages the engine from the transmission, allowing you to shift gears manually.

Gear Shifting – Depending on your driving speed and conditions, the transmission needs to adjust the amount of power reaching the wheels. This is where gear shifting comes into play. In an automatic transmission, the transmission control unit (TCU) or the driver (in some cases) selects the appropriate gear based on factors like speed, throttle input, and load. In a manual transmission, the driver manually selects the gear using the gear shifter and clutch pedal.

Overall, the transmission’s role is to optimize the power generated by the engine for various driving conditions, whether cruising on the highway, climbing a steep hill, or simply idling at a traffic light. It does this by adjusting the gear ratios, ensuring a balance between power and efficiency as you drive.

What Factors Affect Transmission Longevity?

We all expect parts and systems to last a long time. Luckily, your transmission is designed to run effectively for many miles before it starts giving you trouble. Of course, everything wears down eventually. Timing is key. What impacts its longevity? Here are six common culprits:

Not Maintaining the Cooling System – Overheating can be disastrous for your transmission. If you neglect the cooling system, your transmission can overheat, leading to premature wear and damage.

Aggressive Driving – Frequent hard acceleration and abrupt gear changes put extra stress on your transmission. It’s like asking your transmission to perform Olympic-level feats regularly – it won’t end well.

Low Fluid Levels – Transmission fluid acts as a lubricant and coolant for your transmission. Low fluid levels can lead to friction, overheating, and eventual transmission failure.

Hauling Extra Weight – Carrying heavy loads or towing trailers can strain your transmission. It’s crucial to stay within your vehicle’s recommended weight limits to avoid unnecessary wear and tear.

Driving Hard on a Cold Engine – Cold weather can make your transmission sluggish. Being gentle during the warm-up phase allows your transmission to function optimally.

Abrupt Braking – Slamming on the brakes can jolt your transmission, causing unnecessary stress. Smooth, gradual braking is a kinder approach.

How to Approach Transmission Maintenance

Now that we’ve identified the troublemakers, let’s talk about how to keep your transmission in top shape:

Regular Fluid Checks – Make sure to check your transmission fluid regularly and follow your vehicle manufacturer’s recommendations for fluid changes.

Cooling System Maintenance – Keep your cooling system in good condition to prevent overheating. Regularly flush and replace the coolant as needed.

Follow the Owner’s Manual – Consult your vehicle’s owner’s manual for recommended maintenance schedules and procedures.

How Long Does an Automatic Transmission Last?

Automatic transmissions are a bit more complex than manuals, but they can last a long time with proper care. With regular maintenance and gentle driving, you can expect an automatic transmission to last anywhere from 100,000 to 200,000 miles or more. Again, your owner’s manual can give you a better representation of what you can expect. 

How Long Does a Manual Transmission Last?

Manual transmissions are known for their durability. With good maintenance and careful driving, they can often outlast automatic transmissions. It’s not uncommon for a manual transmission to last well beyond 200,000 miles or more.

Overhaul or Replace a Transmission?

If you’re facing transmission issues, you’ll often have two options: overhaul or replace. Overhauling involves repairing and refurbishing the existing transmission, while replacement involves installing a brand-new or rebuilt transmission. The decision usually depends on the extent of the damage and your budget.

Practice Good Driving Habits

Finally, the key to a long-lasting transmission is your driving behavior. Here are some tips to practice good driving habits:

  • Avoid Aggressive Driving – Be gentle on the gas pedal and avoid rapid acceleration.
  • Let Your Engine and Transmission Warm Up – Give your car a minute to warm up in cold weather before driving off. It helps the transmission fluid flow better.
  • Be Easy on the Shifting Process – If you drive a manual, don’t force the gears. Shift smoothly and avoid grinding.

Your vehicle’s transmission is a critical component that deserves attention and care. By understanding how it works and following these maintenance tips, you can extend the life of your transmission, save money on repairs, and enjoy smooth and trouble-free driving for years to come. 

When was the last time you showed your transmission a little TLC?

Transmission Repair Options Explained

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Without a transmission, your car wouldn’t go. 

It’s a crucial component that transfers the power generated by the engine to the wheels, allowing the vehicle to move at different speeds and handle various driving conditions. 

There are two primary types of car transmissions: manual and automatic. 

A manual transmission, also known as a “stick shift,” requires the driver to manually engage and disengage gears using a clutch pedal and gear shifter.

The clutch connects and disconnects the engine’s power from the transmission. It consists of a flywheel attached to the engine and a pressure plate attached to the transmission. The clutch pedal is used to engage and disengage the clutch.

The transmission has multiple gears of varying sizes. These gears are organized on parallel shafts: the input shaft (connected to the engine) and the output shaft (connected to the wheels). These devices help match the speed of the gears before engaging them, preventing grinding and damage when shifting.

An automatic transmission removes the need for the driver to manually shift gears by using a hydraulic system to change gears based on vehicle speed and throttle input automatically. A torque converter replaces the clutch in manual transmissions. It transfers engine power to the transmission using hydraulic fluid and a system of vanes.

The core of an automatic transmission, is a planetary gearset consisting of multiple interconnected gears that can achieve different gear ratios. The hydraulic system utilizes pressurized fluid to engage and disengage clutches and bands, controlling gear selection.

Valves direct hydraulic fluid flow, determining which clutches and bands engage, based on inputs such as vehicle speed and throttle position.

Whether you drive a manual or automatic transmission, things can go wrong. What should you do? 

What can go wrong with a car transmission and require repair

Cars are complex systems with thousands of parts coming together and creating the vehicle that sits in your garage or driveway today. Likewise, car transmissions are complex mechanical systems, and various issues can arise that may require repair or maintenance. They include: 

Transmission Repair Options Explained

Transmission Fluid Issues

Low fluid levels can lead to poor lubrication, overheating, and increased friction within the transmission, or contaminated transmission fluid can cause slippage, overheating, and damage to internal components.

Transmission Slipping

This can be caused by worn clutches, bands, or a malfunctioning torque converter.

Gear Shifting Problems

Rough or harsh gear changes can result from issues with the shift solenoids, valve body, or the transmission control module. A delay between shifting gears can indicate problems with the shift solenoids, valve body, or fluid pressure.

Transmission Leaks 

Leaks in the transmission system can lead to low fluid levels, causing inadequate lubrication and potential damage to components.

Torque Converter Issues

A malfunctioning torque converter can result in poor power transfer, slipping, overheating, and unusual noises.

Clutch Problems 

In a manual transmission, clutch problems such as a worn clutch plate, pressure plate, or release bearing can lead to difficulty in engaging gears.

Transmission Overheating

Overheating can damage transmission fluid and internal components. It can be caused by issues like low fluid levels, blocked cooler lines, or towing heavy loads.

Electrical and Computer Issues

Modern transmissions are controlled by electronic systems. Problems with sensors, solenoids, or the transmission control module can lead to improper shifting, slipping, or other issues.

Torque Sensor Problems 

Automatic transmissions often use torque sensors to monitor engine power output. Malfunctions in these sensors can affect gear selection and shifting.

Valve Body Malfunctions

The valve body controls the flow of transmission fluid and determines which clutches and bands engage. Issues with the valve body can result in improper gear engagement, harsh shifting, or slipping.

Physical Damage

Accidents or impacts can cause physical damage to the transmission housing, gears, or other components, leading to various problems.

Fluid Contamination

Contaminants in the transmission fluid, such as debris or metal particles, can accelerate wear on internal components and lead to transmission problems.

Wear and Tear

Over time, normal wear and tear on transmission components can lead to reduced performance and shifting issues.

It’s important to note that transmission issues can vary in severity, and prompt diagnosis and repair are essential to prevent further damage and maintain the safe and reliable operation of your vehicle. If you experience any of these problems or notice unusual behavior in your car’s transmission, it’s advisable to have a qualified mechanic inspect and diagnose the issue. 

You have a transmission problem – now what?

Some transmission problems can be repaired. Other issues may reach a severity that requires more extensive fixing. In general, you have several options to move forward:

New Transmission

Installing a new transmission involves replacing the entire transmission unit with a brand-new one. This is typically done with a transmission sourced directly from the vehicle manufacturer or an authorized dealer. Getting a new transmission is a reliable option, as it ensures that all components are brand-new and free from wear or damage. It can be the most expensive option due to the cost of the new unit and the labor required for installation.

Rebuilt Transmission

A rebuilt transmission, sometimes known as a remanufactured transmission, is a unit that has been disassembled, inspected, and rebuilt using new and reconditioned components to bring it back to a like-new condition. The process involves replacing worn or damaged parts, such as clutches, bearings, seals, and gaskets. Rebuilt transmissions are often a cost-effective alternative to new transmissions while still offering reliable performance. They may come with warranties from the manufacturer or remanufacturing facility.

Used Transmission

Opting for a used transmission involves sourcing a transmission from a salvaged or donor vehicle of the same make and model. The used transmission is then installed in your car after any necessary inspections and minor repairs. While this option can be more affordable, there are some risks involved, as the condition of the used transmission might not be fully known. It’s important to work with a reputable supplier and ensure the transmission is thoroughly inspected before installation.

Repaired Transmission

A repaired transmission involves diagnosing the specific issue within your existing transmission and fixing or replacing only the components causing the problem. This can range from repairing a damaged solenoid or valve body to fixing a leaking seal. Repairing a transmission is often the least expensive option, but its viability depends on the extent of the damage and the overall condition of the transmission. It’s essential to work with a skilled mechanic who can accurately diagnose the problem and perform effective repairs.

Have a transmission problem? Which is the best repair route for you?

There isn’t a “right” way of fixing every transmission problem you may encounter. Instead, there are many approaches to ensure your vehicle is safely back on the road. 

When deciding which approach to take, factors such as the severity of the transmission problem, your budget, the vehicle’s age and overall condition, and your future plans should all be considered. Consult with a reputable mechanic or transmission specialist who can assess the specific situation and provide guidance on the most appropriate course of action.

Can we help you with your transmission repair questions? 

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