Express Car Care of Denver

"Denver's Best Auto Repair and Quick Lube"

How to Improve Shifting and Power Transfer With Your Automatic Transmission

by

Your car is made up of thousands of components put together to create several important systems. You couldn’t drive a car without an engine, fuel, suspension, braking, or electrical system. Your car also wouldn’t go without the transmission. 

According to a recent CarMax survey, 96 percent of Americans drive automatics. That means fewer people are purchasing manual transmissions, with fewer learning to shift manually. For automakers, it might be easier for production. But it also means fewer people will understand just how vital the transmission job is.  

Even with an automatic transmission, there are still things you can do to improve shifting and create a better driving experience. 

Why we prefer automatic transmission 

In the early days of the automobile, all cars had manual transmissions, which required the driver to manually shift gears using a clutch pedal and a gear shift. However, as cars became more popular and more affordable, the need for easier-to-use and more convenient transmissions became apparent.

How to Improve Shifting and Power Transfer With Your Automatic Transmission

A Canadian engineer named Alfred Horner Munro developed the first automatic transmission in 1921. His design used a fluid coupling instead of a clutch, which allowed the car to shift gears automatically. However, Munro’s design could have been more successful and was never put into production.

In the following years, several other inventors and engineers worked on improving automatic transmissions. One of the most successful was the Hydra-Matic transmission, developed by General Motors in the 1930s. The Hydra-Matic transmission used a combination of fluid couplings and planetary gears to shift gears automatically. It was first introduced in the 1940 Oldsmobile.

Over time, automatic transmissions became more popular among car buyers, and by the 1960s, most cars sold in the United States were equipped with automatic transmissions. There were several reasons for this shift in preference, including:

  • Automatic transmissions are much easier to use than manual transmissions – push and go!
  • Automatic transmissions require less effort from the driver, which can be more convenient in heavy traffic or when driving long distances.
  • Modern automatic transmissions are designed to shift gears at the optimal time, which can improve fuel efficiency compared to  manual transmissions.
  • Some automatic transmissions, such as dual-clutch transmissions, can shift gears faster than a human can, improving the car’s acceleration and overall performance.
  • Modern automatic transmissions are more reliable than older designs, which were prone to mechanical failure.

While some car enthusiasts still prefer manual transmissions for greater control and driving experience, automatic transmissions have become the more practical and convenient choice for most drivers. In the United States and across the world, automatics are becoming the mainstay. 

How an automatic transmission works

An automatic transmission uses a complex system of gears, hydraulics, and electronics to shift gears automatically as the car accelerates and decelerates. It uses:

Torque converter – The torque converter is a fluid coupling that connects the engine to the transmission. It allows the engine to keep running while the car is stopped, and it also multiplies the torque produced by the engine to help the car accelerate.

Planetary gear sets – Inside the transmission are several planetary gear sets, which consist of a sun gear, a planet gear, and a ring gear. The transmission can change the gear ratio between the engine and the wheels by locking or unlocking these gears.

Hydraulic system – The transmission uses a hydraulic system to control the planetary gear sets. A pump in the transmission pressurizes transmission fluid, which is then used to activate hydraulic pistons that engage or disengage the gears.

Valve body – The valve body is a control center for the hydraulic system. It contains several valves that control the flow of fluid to the various parts of the transmission, allowing it to shift gears automatically.

Electronic controls – Modern automatic transmissions also use electronic controls to manage the shifting process. The transmission control module (TCM) uses sensors to monitor the car’s speed, throttle position, and other variables, and it uses this information to determine the optimal time to shift gears.

When the car is in motion, the transmission shifts gears automatically based on the driver’s inputs and the TCM’s commands. When the car needs to accelerate, the transmission shifts to a lower gear to provide more power, and when the car needs to slow down, the transmission shifts to a higher gear to save fuel. The process is seamless and automatic, making it easy and convenient for the driver.

Ways to improve your driving with an automatic transmission

You drive an automatic. You like the convenience. But you also want to enhance your driving experience. What can you do?

Learn to use the additional gears – Modern automatic transmissions come with additional gears, such as “sport mode”, allowing the driver to shift gears manually. Learning to use these additional gears can improve your driving in several ways. For example, “sport mode” can provide a more responsive and engaging driving experience, while “manual mode” can give you more control over the car’s acceleration and deceleration. Take the time to study your owner’s manual and learn how to use these additional gears, and experiment with them to see how they affect your driving.

Maintain engine performance – Your car’s engine performance is essential to the performance of your automatic transmission. If your engine is not running at its best, it can cause your transmission to work harder, leading to damage and decreased fuel efficiency. To maintain engine performance, be sure to follow the recommended maintenance schedule for your car, including regular oil changes, air filter replacements, and spark plug replacements.

Have proper tire alignment – If your tires are not aligned correctly, it can cause uneven wear on the tires, affecting the handling and performance of your car. To ensure proper tire alignment, have your tires checked and aligned regularly by a professional mechanic.

Ensure correct tire size – Using the correct tire size is also crucial to the performance of your automatic transmission. If your tires are too large or too small, it can affect the gear ratios in your transmission, which can cause it to work harder and decrease fuel efficiency. To ensure you’re using the correct tire size, refer to your car’s owner’s manual or consult a professional mechanic.

Properly maintain your transmission – Proper maintenance of your automatic transmission is essential to its performance and longevity. Be sure to follow the recommended maintenance schedule for your car’s transmission, including regular fluid changes and filter replacements. Additionally, check for any signs of transmission problems, such as slipping gears or fluid leaks, and have them repaired promptly to avoid further damage.

How much do you know about your car’s automatic transmission? How can we help you maintain it? 

How to Choose the Right Mechanic for Your Car Clutch Repair

by

When your car is working well, it’s easy to drive by auto mechanics without giving much thought to which to trust with your car. Even simple services like oil changes don’t require a lot of foresight. 

Yet spending a few minutes now may help alleviate difficulties later on when you face major work, such as a clutch repair. 

When something major happens, who do you trust? Should you pull into just any mechanic? 

How to find a good mechanic

Choosing the right mechanic for your car can be a daunting task. Your car is a significant investment, and you want to ensure that it is in the hands of a skilled and trustworthy professional. The best way to do that is by:

Doing your research

Start by doing your research on the mechanics in your area. You can find this information by searching online, asking for recommendations from friends and family, or keeping your eyes open as you’re on your daily drive. You can consult organizations like the Better Business Bureau or the Automotive Service Association for recommendations.

Looking for reviews online

Once you have a list of potential mechanics, look online for reviews. This is an excellent way to gauge a mechanic’s service quality. Look for reviews on websites such as Google, Yelp, and Facebook. Pay attention to the overall rating, the number of reviews, and the comments left by previous customers.

How to Choose the Right Mechanic for Your Car Clutch Repair

Interviewing prospective mechanics

After you have narrowed down your list of potential mechanics, it’s time to interview them. Call and ask a few questions: 

  • How long have you been in business?
  • Do you guarantee your work?
  • What type of training do the mechanics have?
  • Do you provide free estimates?
  • What are your payment policies?

A good mechanic will be willing to answer your questions and provide you with a clear understanding of their services.

Giving a mechanic a try with a small task

Once you have selected a mechanic, trying them with a small task is a good idea. This will allow you to evaluate their work and customer service. Choose a minor repair, such as an oil change or a tire rotation. See how they operate and whether they meet your expectations. If satisfied with their work, you can move forward with more significant repairs or maintenance tasks.

What is a clutch and how does it work?

A clutch is a mechanical device used in manual transmission vehicles to engage and disengage the engine from the transmission system. The clutch connects the engine to the transmission when the driver engages the clutch pedal and disconnects them when the pedal is released.

The clutch system consists of several components, including the clutch pedal, clutch plate, pressure plate, release bearing, flywheel, and clutch cable or hydraulic system.

When the driver presses the clutch pedal, it disengages the clutch plate from the flywheel, separating the engine from the transmission. The clutch plate has friction material on its surface and is connected to the engine’s crankshaft. The pressure plate is connected to the transmission’s input shaft and exerts pressure on the clutch plate to engage it with the flywheel. The release bearing sits between the clutch plate and the pressure plate and is activated when the clutch pedal is pressed. The clutch cable or hydraulic system transfers force from the clutch pedal to the clutch assembly.

That may seem like a lot of parts. You don’t have to fully understand a clutch system to keep it operating well. What you should keep in mind if you drive a manual transmission is that clutches can and will wear down over time. 

Need clutch repair? Here’s how you know

Several signs indicate that your clutch may be going bad. Here are a few common symptoms to watch out for:

Difficulty shifting gears – If you find it hard to shift gears, it could be due to a worn clutch or clutch cable. In some cases, the transmission may also be the culprit. You may notice that the transmission slips, grinds or pops out of gear. This could be due to worn synchronizers or a damaged shift fork.

Slipping clutch – A slipping clutch is one of the most common symptoms of a worn clutch. It happens when the clutch disc wears out, causing it to slip against the flywheel. This can cause the engine to rev, but the vehicle may not accelerate as expected.

Burning smell – If you smell a burning odor, it could indicate that the clutch is overheating. This can be caused by a slipping clutch or by riding the clutch pedal. Riding the clutch pedal means keeping your foot on the pedal even when it’s not necessary, causing the clutch to engage partially and overheat.

Noise – Unusual noises such as rattling, grinding or clicking sounds when you press or release the clutch pedal could indicate a problem with the clutch mechanism. For example, a rattling noise could indicate a loose clutch plate or flywheel bolts, while a grinding noise could indicate worn clutch parts or a damaged flywheel.

Difficulty engaging/disengaging the clutch – If you have difficulty pressing the clutch pedal, or if it feels too soft or too hard, it could indicate a problem with the clutch cable, hydraulic system, or the release bearing. The release bearing is the component that pushes against the pressure plate to disengage the clutch when you press the pedal. If the bearing is worn, it may not disengage the clutch completely, causing difficulty shifting gears.

What’s next?

If you drive your car regularly, you’ll notice how your vehicle behaves typically. Use this to gauge any changes in your car’s performance, and take action when you suspect something is wrong. 

If you notice any of the above symptoms, it’s important to have your vehicle checked by a qualified mechanic. They can diagnose the problem and recommend the necessary repairs to ensure the safety and longevity of your vehicle. [This is where it’s crucial to have a mechanic you can trust!]

What questions can we answer for you about clutch repair? 

Sticking to a Budget – How To Handle Auto Repairs

by

When you’re living on a tight budget, bringing your car in for auto repairs can be a bit intimidating. What you thought would be a simple repair can quickly turn into an expensive overhaul. 

But waiting isn’t an option either. If you ignore the warning signs, it’s a surefire way of letting the problem escalate. And you’ll have to face the problem sooner or later. 

How do you handle auto repairs that pop up throughout the year … and stick to a budget too?

Start by finding a friend in the auto repair business

Finding a reliable auto mechanic can be daunting, especially if you are new to the area or not very familiar with car maintenance. However, with a little bit of research and due diligence, you can find a mechanic that you can trust to keep your car running smoothly. We often suggest:

Ask for recommendations: Ask friends, family, and coworkers for recommendations of mechanics they have used and trust. They may be able to provide valuable insight into the mechanic’s reliability, quality of work, and pricing.

Sticking to a Budget - How To Handle Auto Repairs

Check online reviews: Look for online reviews of mechanics in your area. This can be a great way to get a sense of the mechanic’s reputation and the type of service they provide. Be sure to read multiple reviews from different sources to understand the mechanic better. You can also get a pretty good idea of who they are by looking at their website. How much thought and care do they put into making it shine?

Ask about the mechanic’s experience: It’s always a good idea to ask about the mechanic’s experience and training. A mechanic with more experience and training will likely have a deeper understanding of how cars work and be able to diagnose and fix problems more accurately.

Get estimates: Don’t be afraid to get estimates from multiple mechanics. This can help you compare prices and get a sense of what is a fair price for the work that needs to be done. Keep in mind that the lowest price may not always be the best deal, as cheaper mechanics may cut corners or use lower quality parts.

Trust your gut: Trust your instincts. If you get a good feeling about a mechanic and feel like they are trustworthy and competent, chances are they are. On the other hand, if you have a bad feeling about a mechanic, it’s probably best to look elsewhere.

How to tell the difference between auto repairs that need immediate action and those you can wait on

It is essential to properly maintain your vehicle to ensure its safe and efficient operation. However, some car repairs can be more pressing than others, and it is important to identify which ones should be addressed immediately and which ones can wait. Here are some tips on how to tell the difference:

Safety: If a repair poses a safety risk to you or other drivers, it should be addressed as soon as possible. For example, if your brakes are not functioning correctly, you should have them repaired immediately to avoid the risk of an accident.

Performance: If a repair is affecting your vehicle’s performance, it is generally best to address it sooner rather than later. For example, if your engine is misfiring or your transmission is slipping, these issues can lead to further damage if left unaddressed.

Cost: In some cases, it may be more cost-effective to address a repair sooner rather than later. For example, if a small oil leak is not addressed and it leads to further damage, the cost of the repair could be much higher than if the leak had been fixed initially.

Convenience: If a repair is causing inconvenience or discomfort, it may be worth addressing sooner rather than later. For example, if your air conditioning is not working, it may be more comfortable to have it fixed during the summer rather than waiting until the fall.

Frequency: If a problem occurs frequently, it is best to address it as soon as possible. For example, if you constantly have to refill your radiator with coolant, this could be a sign of a more significant issue that should be addressed.

A proactive approach to auto repair can be better for the budget

Being proactive with auto repairs means taking steps to prevent problems with your vehicle before they occur, or identifying and addressing issues as soon as they are detected. This can help you avoid costly repairs and downtime, and ensure that your vehicle is always running at its best.

There are several ways to be proactive with auto repairs:

Follow a regular maintenance schedule: Your vehicle’s manufacturer will likely provide a schedule for routine maintenance, such as oil changes and tire rotations. Following this schedule can help you catch minor problems before they become major issues.

Pay attention to warning signs: If your vehicle is exhibiting strange noises, smells, or behavior, don’t ignore it. These could be signs of an underlying issue that needs to be addressed.

Regularly check and maintain your vehicle: Regularly inspecting your vehicle for signs of wear and tear, and addressing any issues as soon as they are detected, can help prevent significant problems down the road.

Use high-quality parts and fluids: Using high-quality parts and fluids can help extend the life of your vehicle and prevent problems from occurring. Find a trusted mechanic, and you’ll never worry about inferior parts.

Keep records of repairs and maintenance: Keeping detailed records of all repairs and maintenance performed on your vehicle can help you identify patterns and issues, and make it easier to diagnose problems in the future.

By being proactive with auto repairs, you can help ensure that your vehicle stays in top condition and minimizes the risk of unexpected breakdowns. This can save you time, money, and hassle in the long run.

What’s your approach to auto repair? 

How Heat Impacts Your Transmission

by

Living in Colorado means you’ll never have a dull moment when it comes to the weather. One day may see snow and cold, followed by record-breaking heat that leaves you sweltering under the sun. 

Imagine how your car feels as it hits the hot pavement, sitting in traffic, heat moving all around it. Heat impacts a lot of things: the tires, the engine, gas mileage. But it also impacts something you might not think much about: your transmission. 

What is a transmission?

Your car’s transmission is one of the most critical components. It’s what moves power from the engine to the wheels. It’s what makes your car go. 

Most modern vehicles today use an automatic transmission. If you drive a high-performance vehicle, you may still have a manual transmission in place – a stick-shift requiring you as the driver to take the necessary steps to move the gears into place. 

With a manual transmission, the driver pushes in a clutch and selects the proper gear. It uses a flywheel, pressure plate, and clutch to disengage the transmission from the engine. This flywheel and pressure plate are connected to the engine, with the clutch between to connect the transmission. Every time you shift, you push the clutch to disengage the clutch from the engine, before moving into proper gear.  

Automatic transmissions don’t use clutches to change gears. Instead, they rely on a torque converter to move to the appropriate gear as you pick up speed and slow down. 

Is the transmission overheating?

One of the most common reasons for transmission failure is overheating. Luckily, transmissions give tell-tale signs of overheating before catastrophic failure occurs. If you notice the symptoms and take quick action, it can be the difference between a quick fix and total transmission failure. 

How Heat Impacts Your Transmission

For an overheating transmission, you might notice:

  • A hesitation or delayed gear shift as you are driving
  • A grinding or shaking sensation that occurs while idling or accelerating
  • The gears “slipping” when accelerating or slowing down
  • A sudden burning odor inside and outside the vehicle

Any one of these signs is a warning to bring your car in for inspection quickly to avoid bigger problems. 

How higher heat impacts our vehicle’s transmission

If you notice more vehicles by the side of the road during high heat, there’s a reason for that. 

Even the most powerful cooling system in the world has a hard time standing up to high heat. You see it in your home with your air conditioner. You see it in your car with the way it operates. If the weather is hot and dry, it creates more heat in and around the engine compartment. It works hard to try and stay cool. The added stress of city driving can do more harm, especially if the transmission is under pressure. 

Low or bad transmission fluid – transmission fluid is one of those additives that you don’t think much about because it isn’t like motor oil where you change it regularly. Most vehicles on the road today require transmission fluid changes every 30,000 to 100,000 miles, depending on if you drive a manual or automatic vehicle. Check your owner’s manual for more details. Transmission fluid keeps the transmission lubricated and ensures the components operate at an optimal rate and temperature. If the transmission fluid is running low, or has been compromised, it will cause the transmission to overheat. 

Radiator or cooling system problems – the radiator and cooling system are responsible for keeping the vehicle cool regardless of what the outside temperature is, the driving distance, or how much pressure is placed on the vehicle. If the radiator or cooling system have issues, it leads to problems in other areas of your vehicle, including the transmission. 

Solenoid issues – a failing transmission may also be caused by a problematic solenoid. A solenoid is an electro-hydraulic valve that helps regulate fluid flowing in and out of the transmission. If the solenoid goes bad, it prevents the transmission fluid from flowing freely through the system. This leads to a transmission possibly overheating, and eventually, total failure. 

Transmission sensor problems – today’s modern cars have sensors throughout the vehicle regulating action and inaction. The transmission uses multiple electric sensors to help it run smoothly and regulate the entire system’s operations. If any one of these sensors goes bad, it can be enough to allow issues to start building within the transmission. If not caught and replaced early, it can lead to overheating.  

How to keep transmission from overheating

Like other systems within your vehicle, maintenance is key to avoiding catastrophic problems. To keep the transmission healthy, be proactive with maintenance and instill preventative actions into your schedule. 

Schedule regular maintenance

Cars need more than oil and gasoline to stay operational. Parts will wear out over time. That’s why it’s a good idea to schedule regular maintenance visits with a mechanic you can trust to ensure every system remains in good working condition. For your transmission, this means scheduling maintenance based on guidelines around age and mileage. An inspection can help you determine the best time for replacing fluids and parts. 

Watch for warning signs

When you drive your car every day, you get used to the touch and feel of every system. You can tell when something isn’t right. Don’t ignore these signs. Even the little ones are warning you of potentially bigger problems. This is when you should schedule an inspection to ensure everything is working correctly. This can make the difference between a small part and a significant repair. 

Treat your transmission with care

This is another reason to back off aggressive driving. Avoid idling for extended periods. Come to a complete stop to allow the shifting mechanism to complete its cycle. Avoid aggressive acceleration and deceleration. Pay attention to how you drive when you head up into the mountains. 

If you continue treating your car with kindness, it will give you a long life virtually trouble-free. Maintenance is always a better, safer, and less expensive route than to take the attitude of “wait and see.”

When was the last time you had your transmission expected? Don’t wait until the heat impacts your vehicle. Schedule your appointment today. 

Should You Consider a Transmission Rebuild?

by

Your vehicle’s transmission is a vital part of operation. Without it, your car won’t go. 

If your transmission has problems, it can be a safety hazard. Imagine getting in a situation where your car won’t change gears, or suddenly does as you’re driving down the road. 

When you notice a transmission problem, a mechanic will inspect it and find what’s causing the issue. It might be a minor repair, or it could be more serious. That’s when you’re likely to have to make a decision: should you consider a transmission rebuild, or is it time for a new one. 

Understanding a transmission

Think of a transmission as a car’s gearbox. If you compare it to a bicycle, it would consist of a gear shifter and chain mechanism. 

The transmission components are mounted to the engine compartment so the gear and chain system can effectively convert combustion power from the engine into physical energy. 

Fuel is ignited in the combustion chamber. As fuel ignites, it uses the heat to push pistons up and down in the engine cylinder, spinning the crankshaft. This crankshaft is what’s used to move the wheels. 

Should You Consider a Transmission Rebuild?

It’s the transmission system’s job to ensure this energy force is kept under control. The transmission ensures energy is sent to the wheels at intermittent levels, depending on the speed you’re traveling at. Without it, it would be difficult to start and stop your car. 

A transmission changes gears as the vehicle moves through different speeds. As you push down on the accelerator, let up and apply the brake, the transmission adjusts so that the engine’s revolutions per minute (RPMs) are kept relatively low. This provides better fuel consumption, and ensures the energy process doesn’t overload the engine. Think of it as a harnesser of energy, making the entire process work safely and efficiently. 

Everything works well. Until it doesn’t. 

What is a rebuilt transmission?

Transmissions are one of the most complex systems that make your vehicle operate. When something goes wrong with the transmission system, the repair process can escalate fast.  

While mechanics will speak of a transmission as if it were one part, it’s actually a series of over 800 different components, each with its own unique make and model. Each part can be repaired or replaced. It’s a time-consuming and expensive process. Even for a highly trained mechanic, it takes time to ensure the right pieces are fixed, and the entire system is efficient once it’s put back together. 

Inside a transmission are several major components:

  • Gear set – this allows the forward and backward motion.
  • Hydraulic system – transmission fluid moves through the system to help control gear movement. It helps with lubrication, cooling, and shift control. 
  • Seals and gaskets – these components ensure lubricant stays where it’s supposed to be without leaking.
  • Pump and turbine – the engine and transmission work through a series of three fans, spinning as fluid is pushed through the system. 
  • Throttle cable – this monitors speed and throttle position of the transmission to help determine the proper time to shirt.
  • Computer – modern day vehicles use a computer to control the process through a series of sensors. 

A transmission rebuild would include working on any one or more of these components. If any part is damaged or worn out, the components would be in need of repair. It includes replacing a series of parts rather than replacing the entire transmission. 

Rebuilt transmissions can involve major overhauls. It can include replacing several parts or systems within the transmission rather than installing a brand new one. 

What happens during a transmission rebuild?

When a mechanic rebuilds a transmission, it involves removing the transmission and completely disassembling it. Each piece is inspected for damage or wear, and a decision is made on whether to keep it or replace it. If it’s kept, it’s cleaned and used as the system is being rebuilt. Clutches, seals, gaskets, and any other easily worn items will be evaluated during this process as well. 

Why are transmission rebuilds popular? Because a rebuilt transmission can be considerably less expensive than replacing the entire system. Even a rebuilt transmission can cost several thousand dollars, depending on the problems. It’s a way to keep the costs as low as possible while bringing your vehicle back to drivable condition. 

There is a break-even point where a transmission rebuilt and installing a new transmission meet. As parts and labor creep upward, there’s a point where it makes more sense just to replace it. A reputable mechanic can help determine that and make suggestions along the way. 

Research shows that transmissions tend to fail between 80,000 and 150,000 miles. As you approach that mileage, you can start asking yourself questions.

  • How often do I bring the vehicle in for routine maintenance?
  • What problems have I had in the past?
  • How long do I plan on keeping this vehicle? 

These questions can help you decide the best course of action. If your transmission has a history of problems, needing repair work frequently since you purchased it, it may point in the direction of replacement. If it’s never given you any problems before, rebuilding the transmission may be the solution. 

Some common indicators of needing a transmission rebuild

Problems with your vehicle rarely occur instantaneously. Instead, you’ll start noticing problems build over time. 

Transmission slipping – you’ll notice regular and sudden changes with gears shifting when it’s not expected. It might make a humming noise. It often happens with low transmission fluid levels, or lack of maintenance. The worse it gets, the more the gears are damaged. Too much damage would require a new transmission. 

Gear shifting problems – your car won’t go without the ability to shift gears. When this starts to fail, you’ll notice it in several ways:

  • A jerking sensation as it moves between gears
  • Shifting without reason
  • Falling out of gear while driving
  • Hesitation before engaging

Burning smell – any burning smell should be checked out right away. It’s a sign of a component failing. The sooner you find the problem and fix it, the less at risk you are of the entire system collapsing. 

Fluid leak – transmission fluid is a red color. If you notice it darkening, or leaking anywhere from the system, you’ll have cooling issues. Continuous leaks can result in low levels of transmission fluid, which means it’s not running through the system at optimal levels. It can damage a series of components. 

Do you have transmission problems? 

Whether a transmission rebuild is in your future, or a full replacement is necessary, it starts with a full inspection. Bring your vehicle in today, and we’ll help you make an informed decision. 

This Is Why Your Transmission Is Slipping

by

Your transmission is slipping. Even if you have no idea what that means, it just sounds bad, doesn’t it? 

In the simplest terms, a car transmission is a gearbox. If you think of the gears and chain on your bicycle, that’s a good place to start. 

The parts of a transmission are connected to the engine so that the gear and belt system effectively respond to the power produced by the engine, providing the transmission with momentum. 

When you turn the key to start the car, fuel ignites in the combustion chamber. As it ignites, gas and heat expand and push pistons inside the engine’s cylinders. As they move up and down, they spin the engine’s crankshaft. This in turn connects and moves the wheels. 

Most transmissions have five or six sets of gears and gear trains (belts or chains) that help a driver operate the vehicle at different speeds. As power moves based on how much gas you give it, the gears move accordingly. Without the transmission, the entire start and stop movement wouldn’t be possible. 

How a transmission works

Cars will have a manual or automatic transmission. The only difference between the two is how much participation a driver has in the process. With a manual transmission, the driver pushes a clutch to engage the clutch plates and gear levels, then moves into the desired gear. An automatic transmission has an automatic clutch that performs each movement based on how fast you’re driving. 

A gear lever selects and moves gears to connect with the appropriate gear. When engaged, this gear level moves a clutch plate into position to connect with larger gears. This process continues to change and shift gears based on your speed and actions, delivering power from the engine to each of the wheels. 

This Is Why Your Transmission Is Slipping

Each gear is shaped with teeth to fully engage as they move. If you hear the engine making a horrible grinding sound, it may be because the clutch plate doesn’t align properly with the gear teeth. While it might be easier to hear if you’re driving a manual transmission, you still can’t ignore the grinding sound as it tries to engage while moving into a higher gear. 

What does it mean when your transmission is slipping?

When a transmission is slipping, it can feel like the vehicle is slow in response time. When you press down on the accelerator, nothing happens. It may or may not be accompanied by a noise, such as a clunk, similar to what happens when it changes gears. You may also notice it while driving at a consistent speed, it suddenly slips into a different gear. This can be caused by several things:

  • Fluid – a transmission operates with transmission fluid to keep the gears well lubricated. If the levels are too low, or there is grime and dirt in the transmission fluid, it might prevent the gears from moving as they should. 
  • Gears – gears work together with teeth grips, connecting with each other as they go around. If those teeth are worn down or contaminated, they may not fully connect and grip. 
  • Transmission bands – these internal bands are used to engage and disengage the gears. Over time, these can wear down and become less effective.
  • Solenoid – this controls fluid distribution. If the proper levels of fluid aren’t circulating, it impacts every part of the system. 
  • Torque converter – this is the connector piece between the transmission and engine. If it fails or doesn’t operate correctly, the transmission will not operate as designed. 

Most transmission slippage problems are from low or worn out transmission fluid

It’s the number one reason vehicles experience transmission slippage. Luckily, it’s also an easy problem to fix. 

Most manufacturers suggest replacing transmission fluid every 30,000 to 60,000 miles. Considering transmissions need full replacement around 100,000, that equates to two or three changes before it’s time for a new transmission. Depending on how much you drive each year, that could signal new transmission fluid should be checked and changed every two to three years. 

Depending on how your transmission is designed determines how easy the process is. Many systems are completely closed and require professional servicing.  Transmission fluid is typically translucent and dark red when new, but will grow even darker as contaminants are introduced. 

Like motor oil, transmission fluid can be checked with a dipstick. Pull it out from the filler tube and look at the color. Transparent red means it’s like new. Dark brown signifies it’s time for a fluid and filter change. If it appears light pink, it signifies water or coolant has made it into the system. It’s time for a rebuild or repair. 

Can you drive with a slipping transmission?

When trying to decide whether to continue to drive, think about all the things that might be wrong. 

If it’s leaking transmission fluid, what’s happening internally without proper fluid levels?

If it’s making a funny noise, how are all the parts interacting?

If you feel the car not engaging at different speeds, does it put you at risk while out on the road?

Can you drive with a slipping transmission? Technically, the answer is yes. 

Yet driving with a bad transmission will definitely put you and your vehicle at risk. 

Continue to drive, and the damage may escalate. What might have been stopped with a minor repair can quickly escalate. 

And if gears slip and won’t engage to help you keep your vehicle under control, it can put you at greater risk for an accident. 

If you’re unsure of how bad your transmission problem is, inspecting it will pinpoint the issue and get you back on the road safely once again. 

Stop by today and let us inspect your vehicle. We’re here to run diagnostics and fully check your issue to get to the heart of the problem. We’ll help you determine what’s wrong with your vehicle, find a solution, and keep your car operating as efficiently as possible. 

Is your car experiencing transmission slippage? 

Does Your Clutch Need Repair or Replacing?

by

Clutch failure. Even if you aren’t quite sure what it means, it sounds bad. 

Like other parts of your vehicle, the clutch is only designed to last for so long before it starts to wear down. Both manual and automatic transmissions have clutches designed to engage the transmission and harness the power to move the wheels throughout a full cycle. As you move out of park and start moving, the clutch engages. As you come to a stop, the clutch engages. 

Manual transmission vehicles create movement between gears manually using a clutch pedal. An automatic transmission creates this movement automatically. In both cases, there is constant movement and friction as the gears move into place. Over time, enough wear will occur to wear down the clutch, requiring repair or replacement to ensure your safety. 

How do you know which it is? Is it time to repair or replace the clutch in your car? Read on to find out how you’ll recognize the symptoms. 

What is a clutch? Why does my car need a clutch?

Before you can diagnose clutch problems, learning more about its function can help you recognize potential problems early. 

A clutch is a mechanical device that engages and disengages the transmission between several rotating shafts. A clutch is a connection point between two shafts, allowing them to lock and spin together, or disengage to operate separately. 

In most vehicles, the clutch sits between the engine and the main driveshaft. It takes power from the engine and transfers it to the wheels. While an engine spins and creates power continuously, your wheels don’t. To gain control over the wheels without turning off the engine, you need a way to operate the two separately. This happens between the clutch disc and the engine’s flywheel, giving you full access to control power and speed in any condition. 

Does Your Clutch Need Repair or Replacing?

A traditional clutch will contain a variety of parts, including:

  • Clutch disc – the connection point to the transmission
  • Cable – connects the clutch pedal to the clutch fork
  • Clutch fork – controls the force between the clutch and the pressure plate
  • Pressure plate – connects to the clutch disc
  • Flywheel – connects to the engine

Each piece is connected via links, cables, and other bearings to ensure it maneuvers correctly. If any one of these parts starts to fail, you’ll notice it in the way your car performs. A few things that can go wrong include:

A slipping clutch

A clutch can have anywhere from 50,000 to 100,000 miles before it needs repair or replacement. As the clutch wears down, the material begins to wear out, and it won’t perform as it did when it was new. A clutch needs friction to engage. Without the proper friction, the clutch won’t work as well as it should. That means you may feel the clutch slip as you accelerate, and the clutch moves between gears. It’ll feel like your vehicle is dragging, even though the engine may be revving up. 

A slipping clutch can be caused by a variety of problems, including:

  • A cable that needs adjusting
  • A clutch linkage is bent or damaged
  • The pressure plate is weak or warped
  • The clutch assembly is dirty from oil or grease leaks
  • A broken motor mount

As it slips between gears, it may also become sensitive to movement, or even get stuck. For a manual transmission, you may notice this if you press down on the clutch pedal and it slips out of gear immediately, or you have to push it all the way to the floor without movement. Clutches can stick for various reasons, including:

  • A broken or stretched clutch cable
  • Leaky or defective clutch master cylinder
  • Air in the hydraulic line
  • Clutch components out of sync
  • Linkage out of adjustment 

A clutch master cylinder failure

Clutch failure can originate in the clutch master cylinder for a variety of reasons. With each potential problem, it creates signs that something is wrong. You’ll notice a problem in different ways. 

Noises – when parts aren’t properly synced and working well, the friction between the parts will create a variety of sounds. With a manual transmission, you might hear a noise as you press the clutch pedal to the floor, even if the engine is turned off. That’s an indicator of a clutch fork problem. As lubricant dries up, it can cause a noise as it tries to engage. 

Vibrations – as you press down on the pedal, you may feel a vibrating sensation from time to time. Vibration can be caused by a variety of things, but usually starts as things wear down. Friction no longer occurs between separate parts, meaning they rub against each other incorrectly. This appears as a vibration as they try to engage. 

Spongy or loose feel – this is often caused by a hydraulic problem. There may be air in the hydraulic system, low fluid in the reservoir, or a leaking connection, hose, or pipe somewhere in the system. 

Grinding while shifting gears – there should always be free-flow as your car moves from gear to gear. When you start feeling or hearing the process, it’s a sign of a worn down part. Any one of the parts that make up the clutch system isn’t moving correctly at the right speed. Instead of moving into position, it sticks or drops quickly. You’ll hear it as parts don’t connect as intended. It may require an adjustment, or a full replacement. 

What can it be? An inspection will get to the root cause

 Each symptom is a signal it’s time to bring your car in for an inspection. It’s the easiest way to get to the root of the problem, and fix it before it escalates into something else. In some cases, it might be a simple repair. It’s better to know for sure before it escalates, causing more damage, and potentially putting you at risk. 

Does Your Car Really Need a Transmission Flush?

by

Some vehicle maintenance items become so routine, you rarely think about them. You fill up with gas, pull in for oil changes, and replace your tires when the tread wears down. 

But internal items are trickier to understand. How do you know if your transmission isn’t operating well? Would a transmission flush work, or is the problem deeper?

A quick search online will tell you controversy surrounds transmission flushes. Some reports say it’s a myth to need to flush the system at all. Other resources tell you it’s a must to keep your car in good working condition. Who do you believe? 

A quick search by brand tells you it’s mixed between manufacturers. Toyota recommends automatics flush the system every 60,000 to 100,000 miles, while manual vehicles need care every 30,000 to 60,000 miles. Mercedes has a wider range of recommendations, depending on the year, make, and model. You’ll find advice for transmission flushing between 40,000 and 100,000 miles. 

Understanding automatic transmission fluid

According to a CarMax study, Americans love automatic transmissions, with 96 percent of the population driving automatic vehicles. Maybe it’s our multitasking strategies that make automatic transmissions more convenient. 

Automatic transmissions use a hydraulic system that relies on a constant flow of transmission fluid to provide the correct supply of hydraulic pressure for ultimate response. It’s the transmission fluid’s job to provide proper flow through each hydraulic line within the transmission system. 

Does Your Car Really Need a Transmission Flush?

Transmission fluid is designed with a specific viscosity and additives that help reduce expansion as the fluid heats under pressure. If operating well, it will remain consistent over time. 

Over the years, the additives will wear down, which can cause the fluid to thin and be more susceptible to the expansion process. This is when it’s time to replace the transmission fluid to ensure your car continues to operate well. 

Why a transmission flush is necessary

Today’s vehicles use a variety of fluids to continue to operate well:

  • Windshield washer fluid – to ensure your safety while driving on dirty roads
  • Motor oil – to keep the engine healthy and running smoothly
  • Coolant – also known as antifreeze, helps to keep the engine cool
  • Brake fluid – keeps the brake system fully operational

Each of these fluids is important to ensure your vehicle continues to operate, and you won’t be stranded while out on the road. 

Some fluids drain out of the system and simply need to be refilled to continue working. Windshield washer fluid provides the necessary spray to keep your windshield clean in all driving conditions. If it runs out, you simply fill up the reservoir and it’s available once again. 

Transmission fluid works slightly differently. 

With an automatic transmission, the fluid continues to circulate throughout the fuel lines. As it wears down, small particles travel with the fluid, and can stick or corrode the inside of the lines. Even if you were to drain the lines, those tiny particles could still be a problem. The only way to thoroughly remove those particles is with a flush to the system. 

If those particles continue to build, they can wear down the various parts of the transmission system. Here are four reasons why it’s important to perform a transmission flush according to manufacturer’s guidelines:

It increases transmission lifespan

Clogs in the hydraulic fuel lines can lead to all kinds of problems. As particles and contaminants build up, they can lead to inner seal leaks and breaks. It can force liquid into areas where it shouldn’t be. And while you might not notice the results immediately, they can have a trickle down effect. Flushing the transmission occasionally and replacing minor parts is a lot more friendly on the wallet than replacing a transmission after complete failure. A transmission flush can extend the life of your vehicle by ensuring the entire system is once again operating properly. 

It makes shifting easier

It’s the transmission’s job to ensure smooth shifting as you speed up and slow down. Over time, particles and contaminants can cause gears to slip or stick, impacting the effectiveness of your driving. A transmission flush gets rid of those imperfections and ensures a smoother shift. 

It improves fuels economy

How well the transmission operates is what ultimately controls fuel efficiency. If the flow of gasoline is inhibited in any way, it takes more energy to produce the same results. A vehicle in good working condition ensures the best fuel efficiency possible. If the transmission slips or doesn’t engage properly, it requires more fuel inside the engine. A transmission flush brings the entire system back to good working condition, helping your car be as efficient as possible. 

It protects your car’s warranty

Do you have an extended warranty on your vehicle? More manufacturers are offering years of coverage on well cared for parts. The key is ensuring each system is well cared for, and that you meet their key requirements. Do you know what your owner’s manual says about transmission flushes? If not, it’s time to read up and learn what your vehicle needs to thrive and stay within the acceptable guidelines. Be sure to track it in case you need to fall back on the warranty at any point you own the vehicle. 

Is it time for a transmission flush?

A lot of what we’ve referred to in this article concerns automatic transmissions. Manual transmissions work differently, and require different levels of maintenance. The best way to ensure you’re giving your vehicle what it needs to operate well is to refer to your owner’s manual regularly, and use the advice to set up your own maintenance routine. 

https://denverexpresscare.com/transmissions-need-repair-too

We’re also a great resource to have on your team. With our diagnostic tools, we can evaluate your vehicle periodically, and assess what maintenance items need to be scheduled. Every vehicle is different, depending on the way the car is driven. 

By being proactive, you can stay ahead of potential repair problems. Fixing issues before they escalate is the best way to keep your repair bills low. 

Does your vehicle need a transmission flush? 

Early Warning Signs of Transmission Failure

by

The transmission is one of the most important components of today’s vehicles. Without it, there would be no way to transfer power from the engine to the wheels. 

Like other parts of a vehicle, when something goes wrong, your car won’t operate as it should. In some cases, it can stop you in your tracks. 

Luckily, there are early warning signs of transmission failure. Catch it early and it will be an easy repair. Put off the repair, and you risk expensive repairs or complete failure. 

How a transmission works

A transmission ensures that power moves from the engine to the wheels. 

There are a variety of car transmissions available, some are automatic while others are manual. While it once was common to control the transmission by using a stick-shift inside the car, more cars today operate with an automatic. Select which gear you want, and the transition occurs automatically for you. 

A transmission enables the gear ratio between the drive wheel and the engine to adjust and help the car speed up or slow down. When the car comes to a complete stop, the transmission disconnects the engine from the drive wheels so that the engine can idle without powering the wheels. Depending on which gear you’re in determines the direction: park, forward, or reverse. 

For a manual transmission, a clutch pedal and a shifter are used to change gears. The driver has to select the proper gears by engaging or disengaging the clutch. Automatic transmissions power this process to occur automatically within the transmission. 

What are the early warning signs of transmission failure?

While a vehicle’s transmission is designed to operate smoothly throughout the process, as parts wear out, you’ll start to notice small changes in the way the system handles. 

Early Warning Signs of Transmission Failure

Noises

When you first buy your car, spend some time getting used to the way it performs. It’s important to engage all your senses through this process, including what you hear, what you smell, and what you see. 

Often, noises are your first warning sign. Depending on the problem, you’ll start to hear things that weren’t there before. A click. A scrape. A squeak. It also can change depending on the function – moving into reverse may provide a different noise than picking up speed. 

A transmission consists of multiple components, of which any of them can fail and cause a disruption in the system. Transmission problems are most likely associated with a clunking, buzzing, or whining sound due to the nature of the parts. 

Burning smell

In order for the transmission to operate properly, it has transmission fluid that keeps it lubricated and in motion. Fresh transmission fluid has a sweet or tart smell. But if it overheats, leaks, and runs low, it takes on an entirely different smell. 

If you notice a burning smell as you operate your vehicle, it could be low transmission fluid. Something within the system is burning too hot, which increases the friction, and leads to corrosive activity inside the engine. 

The moment you notice this smell, schedule an appointment right away. 

Refusal to switch gears

With a manual transmission, this is easily noticed when you press down on the clutch, and the shifter won’t budge. You push, and yet it simply won’t allow you to move between gears. 

An automatic might be a little less noticeable, but listen closely. You’ll hear it as you drive. You might also notice it as you try to move from park to drive. 

The key is not to force the gears into place. This can come from a variety of problems, including electronics that have gone bad to low or dirty transmission fluid. Rather than take a chance on further damaging parts, it’s best to let a mechanic look at it and determine where the problem lies. 

Slipping gears

Like refusal to switch gears, slipping gears can cause scary situations. Imagine being on the highway, and your transmission suddenly alters what gear you’re in. It can lead to dangerous situations. 

Over time, gears simply wear out. Slipping gears often stems from normal wear and tear, which causes them to no longer engage properly, and slip in and out of sync. 

Jerking, grinding, or shaking sensation

When gears don’t operate as designed, you’ll notice it in the way your vehicle performs. 

You’ll hear the gears grind on a manual transmission as you try to change gears. 

You’ll experience hesitation with an automatic as it attempts to engage, yet fails. 

You may feel your vehicle jerk or shake as you speed up and slow down, depending on how the gears connect. 

Once you notice this, pay attention to the sensation. Then share it with your mechanic, who will better understand where to start the evaluation process for your vehicle. 

Leaking fluid

Pay attention to what occurs underneath your vehicle. Leaking transmission fluid is quite recognizable. 

When your transmission fluid is fresh and new, it has a relatively clear pink color. As your transmission fluid ages, becomes dirty with contaminants, it changes to a deep red or brown. A dark brown color signifies it’s been overheated. 

Transmission fluid is what lubricates the gears and keeps the components working well, and stops them from overheating. It also acts as a hydraulic fluid for creating gear engagement. A leak lessens the amount of fluid in the system and will cause overheating, and eventually, a total breakdown. 

Check engine light

Dashboard lights are a modern day convenience to give you plenty of warning when something is wrong. It’s the best and earliest indicator that your engine isn’t operating the way it should. 

Every system in your car has triggers and sensors that are tripped when your vehicle isn’t operating the way it should. If a problem is detected, the sensor is notified, and a light goes off on your dashboard. 

Pay attention to any and all of these warning signs. They are your best indicator for a potential problem. 

Catching it early can help ensure your safety, as well as prevent future problems with other systems in your car. Catch it early enough and you can also pay less in repair bills – replacing transmission fluid is much less expensive than replacing the entire transmission. 

How can we help you keep your vehicle working as it should? 

Transmissions Need Repair Too

by

When a car is new, everything works perfectly. You start the car, and the sound can be magical. It purrs as you put the car in gear and head off down the highway. 

Over time, starting the car becomes an automatic process. Get in. Turn the key. Think about your day ahead. Ignore the little changes going on underneath the hood. 

And that works well … for a while. 

Eventually, you can no longer ignore the noise. Something’s wrong. 

The question then becomes: What are you going to do about it?

Today’s modern combustion engine is a complex array of components. One of the most critical parts is the transmission. 

In short, a transmission is a vehicle’s gearbox. It’s what allows the car to move through the various gears as you drive. Without it, you could never move away from a stop sign, accelerate on the highway, or climb the hill near your home. 

The typical car transmission has between five and six gear sets and trains (the belts and chains that connect the gears together.) The transmission’s job is to ensure that your engine runs at the proper rate without moving too fast or too slow for the road conditions. It ensures the right amount of power moves from the engine down into your wheels, so your vehicle can move safely down the road as you move through your days. 

Today’s vehicles have two types of transmissions: manual and automatic. Manual transmissions are fading from most car lines as automatics are more precise in their movement, and have a lower error rate. By having an automatic transmission, a driver can focus on the act of driving, rather than worrying about when is the right time to change gears. 

Regardless of whether your vehicle is manual or automatic, the transmission works in the same way. As the driver accelerates, a gear lever moves from one gear to another as the road conditions require. While manual transmissions require the driver to push and hold a clutch control while moving the gear shift, an automatic transmission does it automatically. When engaged, a clutch maneuvers the clutch plates into place to connect with larger gears. As the gear lever moves, different gears shift and connect, which in turn controls the amount of power delivered to the engine and wheels. 

There’s a lot of power behind this movement. Over time, these connections can start to fail, putting you and your vehicle at risk. 

Transmissions Need Repair Too

Luckily, total transmission failure doesn’t happen without warning signals. If you notice any of these symptoms, it’s time to bring your car in for maintenance to stop the problem before it worsens. 

Odor

As you drive along, you can take in a variety of smells. If you pass a restaurant, it might remind you it’s time for dinner. But if you notice a strong odor that doesn’t dissipate as you drive, it might be time for a visit with one of our mechanics. If the smell seems to be coming from the engine compartment, if it has a strong burning smell, it’s a sure sign there’s a problem with one or more of the parts. 

As transmission fluid runs low or degrades, it overheats and can create a burning smell. This allows your engine to run hot, which can allow other engine components to wear down as well. Burning smells are never good for your vehicle; have them checked out, especially if they continue over time. 

Sounds

Remember that purr from when you first bought your vehicle? If you pay attention to the sounds your car makes over time, you can easily notice problems by the different sounds it makes. 

Clunking, humming, whining, rattling, or grinding is never good for your vehicle. Your first step is to determine where the noise is coming from, and when you most often hear it. A clunking noise when your car changes gear is a telltale sign that your transmission is experiencing problems. 

Check engine light

Today’s vehicles are a complex array of technological parts, all coming together to create the modern day car. If any one component isn’t operating correctly, it can have adverse effects on other parts. 

Most cars today have a variety of dashboard lights designed to signal when something is wrong. These lights illuminate the moment the ratios fall beyond manufacturer’s suggested guidelines. They light up in plenty of time for you to bring your vehicle in and get it inspected. Don’t ignore the little light on your dashboard. If you pay attention and take action quickly, you’ll save money on larger, more detailed repairs. 

Leaks

There are several main fluids in your vehicle, each designed to lubricate, cool, and help you maintain your car. 

If any of these fluids break down or leak, they can alter the way your vehicle operates. 

A transmission fluid leak is easy to spot because it shows up as a red color with a sweet smell. It can darken over time if it’s compromised and has dirt particles in it. It can also take on a burnt smell when it has broken down. 

Shaking

An automatic transmission should provide you with a smooth ride. Have you started to notice your car shaking as it changes gear? It’s a sign one or more of your gears may be wearing down, or one of the chains or belts needs replacing. 

Don’t ignore the shaking. It will only get worse over time. 

Won’t move into gear

Sometimes your car gets stuck in one gear and refuses to move to another. This is often a fluid issue. 

When transmission fluid is clean and topped off, the gears move freely as you drive. But as the fluid becomes compromised, it might affect the way the gears move. It might also be a problem with the computer system, not instructing your vehicle to move properly. 

Slipping gears

Instead of having a vehicle that won’t change gears, you might notice the gears occasionally slip between gears without any instruction from you. This is dangerous for your car and can put you in a dangerous situation. This can be caused from a variety of things, including a worn transmission, or low fluid levels. 

Are you experiencing any of these transmission symptoms? 

If your vehicle is experiencing any of these transmission symptoms, it’s time to bring your car in for repair. Don’t ignore unusual smells, noises, or a car that doesn’t drive as usual. It’s a sign your car has a problem, and the sooner you fix it, the quicker you’ll be back on the road without worry. Small problems can escalate into expensive repair bills if not acted on quickly. 

Brakes Service

Oil Change

Suspension

Transmision Service

Engine Service

Auto Tips & Tricks