Car Maintenance

Gas Saving Tips For Your Summer Travels

July 10, 2022 by Denver Express Car Care

How fuel efficient your car was even a few short months ago wasn’t that big of a deal. When gas prices were low, a swing of 5 to 10 miles per gallon barely registered in your mind.

Yet now, gas prices are rising … drastically. You notice it every time you pull into a gas station and fill up your tank. It’s difficult watching your final cost rise significantly upward, knowing there isn’t much you can do. Gas saving tips you read online never really amount to much … Do companies really think trading your car in for an electric car will save you money? Not when the average price of a car just rose beyond $47,000?

If your summer plans include road tripping, you want real gas saving tips you can use right now, with the car sitting in your driveway. Luckily, there are many things you can do that won’t break the bank.

Let’s start with the reasons why your car’s losing fuel efficiency

Sure, you can save a little bit of money by tracking gas prices with your favorite app, but that amounts to a few cents each fill up. The same applies to paying with cash.

Gas is an important part of keeping your vehicle fully operational. Have you ever purchased cheap gas and noticed your car ran rougher as it moved through the system?

The quality of gas is equally important. We suggest finding a reliable source that’s convenient for your lifestyle. Then use that source every time you fuel up. Do they have a loyalty program? This is the time to use it.

Depending on where you go on your summer road trip, you can sometimes find the same source along your drive. Many consumers use Costco for gas as well as other lifestyle choices. You can map out the best places to stop based on where a servicing station is convenient. It also works well if you need to pick up a few food items when arriving at your final destination.

While you can save some cash this way, it won’t make a huge dent in your fuel bill. This is when it comes time to ensure your car is in top condition, to ensure it’s using fuel as efficiently as possible.

Air filter

An engine needs both fuel and air to power the engine. Without the proper air supply, it won’t operate correctly. If the engine isn’t taking in enough air, it compensates for it by adding more fuel to the mixture. It will take more fuel to travel at the same speed.

This is why it’s vital to ensure the air filter is clean and capable of allowing a proper air stream into the engine. Clogged air filters are especially common in older cars that still rely on carburetors. While most manufacturers recommend replacing your air filter every 15,000 to 30,000 miles, it’s a good idea to check it regularly and replace it as you notice changes.

Fuel filter

A fuel filter blocks contaminants in the fuel supply, preventing them from traveling throughout the engine where they can cause harm. One of the biggest places contaminants can hamper fuel efficiency is by damaging fuel injectors. It can also lower fuel pressure, which further compromises your engine.

As your car ages, manufacturers suggest replacing a fuel filter every two years or 30,000 miles, whichever comes first. Check with your owner’s manual to follow recommendations. If you suspect a dirty fuel filter, bringing it in and letting a mechanic inspect it will ensure all parts of your fuel system are working as designed.

Fuel injectors

One of the most common reasons for a drop in fuel efficiency is a dirty fuel injector. Fuel injectors are tiny nozzles that spray fuel into the engine cylinder. This spray system must work precisely to mix with the air supply at the right time. Without it firing properly, it disrupts the fueling process.

When fuel injectors become dirty or clogged, the fuel spray is anything but precise. In some cases, the fuel injectors can be cleaned. Other times they may need replacing to ensure a proper spray pattern. Fixing the problem early will prevent it from escalating and damaging other parts of your vehicle.

Oxygen sensors

Today’s modern cars use an oxygen sensor to measure how lean or rich the exhaust gasses are as they exit the engine. These sensors register the results, then send a message to the computer system to adjust the amount of fuel that enters the engine.

When an oxygen sensor is dirty, it can lead to an inefficient amount of fuel entering the engine. Some estimate that fuel economy can be lowered by as much as 40 percent.

A faulty oxygen sensor is one of the more common reasons the check engine light will illuminate on your dashboard. It’s a good idea to bring your vehicle in anytime a light illuminates. A faulty oxygen sensor is an easy, affordable fix, and will help keep your fuel economy in check.

Tires

Low tire pressure can be a common occurrence as you drive on scorching hot roads. It’s also a common cause of lowering your fuel efficiency. Underinflated tires have more roll resistance with the road. It creates drag as you drive and lower the fuel economy over time.

Luckily, it’s also one of the easiest to fix. Pay attention to the dashboard. If it illuminates low tire pressure, inspect your tires for any signs of weakness. You should also check your tire pressure and fill it up with air as needed. Because tires can have a major impact on safety, especially as you road trip, it’s essential to pay attention to this throughout your trip.

Alignment

No matter how well you drive, you can’t avoid potholes, bumps, and other road hazards all the time. Each bump impacts your wheel alignment, and if it no longer sits straight, it’s costing you money at the pump.

Just like low tire pressure, a poorly aligned wheel creates resistance as it travels down the road. This continual pull hurts fuel economy too.

Now’s the time for a little TLC – before your road trip

With both your safety and fuel efficiency at stake, scheduling a maintenance visit before your next road trip just makes sense. You’ll stop any potential repairs from escalating, and ensure your vehicle is as efficient as possible.

It’s the best gas saving tips we can give.

How Exhaust Leaks Are Impacting Your Gas Mileage

July 7, 2022 by Denver Express Car Care

With gas prices climbing higher each day, it’s only natural to pay more attention to your gas mileage. When you watch your budget being eaten by trips to the gas station, fuel efficiency is of top concern.

Will exhaust leaks impact gas mileage? Will exhaust leaks affect your vehicle’s performance?

While you may not have thought much about the process before, times are a-changing. Exhaust leaks can and will make you take more trips to the gas station. It impacts performance, and underscores your efficiency.

What do you need to know?

Understanding your car’s exhaust system

A car’s exhaust system is a variety of pipes, connectors, sensors, and mechanical devices designed to handle and dispose of exhaust fumes that are produced by the engine’s combustion process. The exhaust system is designed to:

Funnel potentially dangerous exhaust fumes away from the occupants of the vehicle
Reduce the noise levels of the internal combustion process
Reduce the toxicity levels of outgoing fumes that can be harmful to humans

Why exhaust leaks can be dangerous

The combustion process is a powerful force used to create energy, and make your car go. Car exhaust fumes can contain a variety of poisonous chemicals, including:

How Exhaust Leaks Are Impacting Your Gas Mileage

Carbon monoxide
Sulfur dioxide
Nitrogen oxides
Formaldehyde
Benzene
Soot

Each can be harmful to your health.

A properly working exhaust system ensures your vehicle is operating safely for you and those around you. When an exhaust leak occurs, it can allow dangerous gases to enter the atmosphere around it. If that moves into your vehicle, it quickly creates a hazardous situation. Many of these harmful gases are odorless, which means you won’t even realize their impact as you ride in the passenger cabin. Prolonged impact can make you sick.

You may have an exhaust leak if you notice …

For many drivers, an annual emissions test may be the first sign you receive that something is wrong. If you pull into your state’s testing center, it records an abnormal reading, alerting you to a potential problem. To continue legally driving, you’ll have to fix your exhaust system before getting your certification.

But that’s not the only way your vehicle alerts you to a potential problem. Exhaust leaks can give you other warning signs that give you advanced warning.

Engine noise – listen for a loud rumble that often occurs while accelerating. Depending on where the leak is, you may hear a variety of noises: popping, hissing, ticking, or buzzing. It usually sounds louder when you’re outside the vehicle, and it will get louder as you rev the engine.

Loud exhaust – over time, you get to know the sounds of your vehicle well. If you have a leak in the exhaust, it will make driving and accelerating louder than normal. You will know if you have a leak.

Loss of acceleration – anytime the system doesn’t work the way it should, it can impact performance. When you press down on the accelerator, you may notice your vehicle no longer accelerates the way it once did. It no longer has pick-up-and-go. This won’t go away. You’ll continue to lose power as the leak becomes more pronounced.

Vibrations – don’t you just hate rattles and vibrations, and you can’t seem to find the cause? Exhaust leaks allow air to escape from cracks or holes in the system. Depending on where it is, it can cause a variety of vibrations.

Noxious smells – some of the exhaust fumes are odorless. But that doesn’t mean you can’t smell it. One of the exhaust system’s functions is to give it an odor to make sure you smell it in the event something goes wrong. If you start to smell exhaust fumes moving towards the front of the cabin, you have a problem. You may notice it as a gas smell as well.

Reduced fuel economy – with today’s gas prices soaring sky-high, this might be one of your first clues if you monitor your mileage. Are you returning to the gas station more frequently? An exhaust leak may be the culprit. Exhaust leaks cause an air-to-fuel ratio imbalance that makes the engine less efficient. That increases the amount of gas needed for processing.

What’s causing exhaust leaks?

Just like exhaust leaks can spring to life for a variety of reasons, what causes them varies depending on your vehicle. It may be from:

Corrosion – the exhaust system rides close to the ground. It’s impacted by heat and cold, ice, rain, and snow. When you drive on a dirt road, rocks and gravel can pound against it. When you drive in the winter, salt, mag-chloride, and other chemicals can affect the metal. Heat can cause melted road tar onto the system. Go on a road trip? You may bring part of the experience home with you. Through all the miles your car drives, it can impact the system over time.

Damage – the exhaust system resides underneath the car, close to the ground. Potholes, road hazards, unpaved roads, and even normal driving conditions can all cause damage to the low-lying equipment. If a rock bounces up, it can damage the metal.

Failing joints, gaskets, and welds – every piece on your vehicle degrades over time. If it was installed correctly, it might last the manufacturer’s suggested time limits. If it was poorly repaired, it might show up sooner than expected.

Time and age – everything wears down over time. The older your vehicle is, the more room for problem areas can arise.

Fixing exhaust leaks

Exhaust leaks are a job best left to the professionals. That’s because it contains a variety of issues to ensure it’s brought back to good working condition. It may include part replacement, dealing with metal corrosion, or ensuring the system is functioning well. Everything from new parts to sealants may be used.

The exhaust system isn’t something you want second-rate. Your life could hang in the balance if something isn’t right.

Your best line of defense against exhaust leaks is to have your vehicle inspected on a regular basis. If you notice significant changes, schedule an inspection right away.

It’s the best way to keep repair bills to a minimum, and ensure you’re vehicle is always running smoothly.

Should You Consider a Transmission Rebuild?

July 4, 2022 by Denver Express Car Care

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.

6 Signs of a Bad Fuel Pump

June 28, 2022 by Denver Express Car Care

Today’s modern fuel pump is designed for effectiveness and efficiency.

An electrical fuel pump is used by all modern day vehicles that still rely on gasoline for power and energy. It works by utilizing a motor in the fuel pump assembly to draw in fuel you’ve previously pumped into the fuel tank. From there, fuel travels up into the fuel line, and into a fuel rail where it’s injected into the cylinder. It mixes with air and a spark to create combustion.

The pump contains a filter at one end to keep any impurities from moving past the fuel tank and into the fuel line. There’s also a fuel float that sits on top of the fuel supply and sends out a signal to the sensory board. It reads the resistance and relays the message to the fuel gauge, telling you how much fuel is left in the tank.

It’s a simple process, and when it works correctly, your entire system is an effective machine.

Yet because it’s part of a bigger picture, one piece among many in a vehicle with over 10,000 parts, one small failure can impact the entire system. And it’s often difficult to tell which component is failing.

Types of fuel pumps

Older vehicles relied on a mechanical fuel pump to achieve results. The mechanical pump would draw fuel in, trap it, then move the fuel toward the carburetor and engine. It was a cyclical movement, repeating the process repeatedly.

Electric fuel pumps use an injection process with high powered pressure. It’s accomplished by using an electrical process rather than mechanical. They come in several formats:

In-tank – the majority of fuel pumps reside inside the fuel tank. This helps protect the module, keeping it cool as it operates.
Inline – these are easier to replace as they are mounted outside of the fuel tank, somewhere between the gas tank and the engine.

While there are others, these two make up the majority in cars today.

How long a fuel pump lasts

While fuel pumps aren’t a part of a regularly scheduled maintenance routine, like any part on your vehicle, they won’t last forever.

Most manufacturers today will state that a fuel pump should last well past 100,000 miles. They aren’t part of a preventative maintenance package that should be replaced “just because.”

Yet they can and will fail the longer you drive your vehicle. Luckily, they start to give warning signs before they shut down completely.

That’s where paying attention to your vehicle can pay off. If you notice any of these warning signs, bring your car in for a full inspection. That gives you a chance to make the repair before it leaves you stranded, or causes even more damage down the road.

Engine faltering at high speed

As you pull onto the highway and drive consistently at higher speeds, you may notice your vehicle falters a bit before returning to its regular performance. This is a classic sign there may be something wrong with the fuel pump. This sputtering occurs as the pump struggles to keep a consistent stream of fuel moving into the engine for proper pressure. This causes a hit or miss chain as the fuel circulates, causing the engine to falter as it reacts.

Vehicle dies with a heavy load

Are you pulling a trailer, or simply have your car loaded down with materials? The extra weight could add pressure to an already faltering fuel pump, cutting off the fuel supply and making it sputter. When the fuel pump can’t supply the correct fuel supply to keep your vehicle operating, especially under more strenuous circumstances, it’s a sign something might be wrong with the fuel pump.

Low fuel pressure

Low fuel pressure can show up in many ways. Is your car misfiring frequently when you start it up for the day? Does it feel like the acceleration is compromised? Do you experience a rough idle when you leave your car sitting and running? Does the engine stall at different points of your drive? You should also pay attention to any dashboard lights that may illuminate any time your car is in operation. The Check Engine light can signify many different problems with the vehicle. The best way to find what it is will be to bring it in for a full diagnostics test, to get to the root of the problem.

Slow acceleration

If the fuel pump isn’t doing its job, it can’t effectively regulate the fuel supply. That means the system might be pulling too much gasoline at certain points, while not enough gasoline at other times. That can cause acceleration to be compromised. If you aren’t getting the necessary supply of fuel, your car won’t perform.

Loss of gas mileage

Tracking your gas mileage is an easy way to determine problems with the handling of your vehicle. By tracking numbers with every fill up, you develop a pattern for how your car operates. You’ll know if mileage suddenly decreases, you have a potential problem. Fuel pumps have a release valve that allows more fuel to flow into the engine if it fails to open. You’ll notice this by having to fill up more frequently. And at today’s gas prices, that can be a massive uptick in your budget.

Engine fail

If you face any of the above conditions regularly and continue to ignore them, eventually, your engine is going to refuse to start. If fuel doesn’t flow into the engine during the starting process, or flows unevenly throughout your entire driving experience, it’s going to impact all of the pieces in the system. That much stress on the fuel supply will cause the car to no longer start.

All signs point to a bad fuel pump?

Don’t ignore it. It won’t go away.

Instead, schedule a visit with one of our mechanics. We’ll inspect it, diagnose the problem, fix it, and have you back on the road in no time.

Give us a call today. Your fuel pump and your vehicle will thank you.

It Might Be a Clogged Fuel Filter

June 24, 2022 by Denver Express Car Care

Your car’s fuel filter isn’t a component you deal with regularly. In fact, it’s easy to ignore.

It’s hidden within your vehicle’s fuel supply system. It’s one of the easiest to overlook, yet also one of the least expensive parts you can maintain.

Most modern day vehicles have two fuel filters. The first is located in the fuel tank, often referred to as a strainer. The other is in the fuel line.

These fuel filters are made from plastic, metal, or coated pleated paper. Fuel filters are designed to trap dirt, debris, rust, and other impurities from the fuel supply, straining it out before moving to the rest of the fuel system. It protects the engine and fuel injectors from harmful particles.

These fuel filters are built with incredibly tight materials to block impurities from moving into the fuel supply. This is critical because modern engines are fine-tuned and can be damaged by even minor intolerances. Any foreign particles that do make their way past the fuel filter have the potential to cause blockages and damage to the engine.

The cost of the fuel filter is minimal compared with the potential damage it can cause.

How do I know if my fuel filter is clogged?

Like other parts and systems on your vehicle, a clogged fuel filter will give our warning signs when it’s compromised. This is where paying attention can help save time and money on potential repairs.

Poor engine performance – poor engine performance is especially noticeable when you push your vehicle while accelerating, or when you add more weight to your load. Do you notice hesitations, surges, or sputtering? This is often caused by fuel restriction. If the fuel supply can’t get through the fuel filter as designed, it will impact every aspect of the way your engine performs.

Trouble starting the car – a clogged fuel filter rarely makes it to the point where it causes problems when starting the car, but if you leave it unchecked, it could be part of the problem. A clogged fuel filter causes erratic flow of gasoline, which results in poor engine performance.

Misfire or rough idle – when driving on a clogged fuel filter, it can lower fuel pressure enough to cause the engine to misfire. You may also notice this in poor gas mileage. If you leave your car idling, it may feel a bit rough, or even cause the check engine light to pop on. If it gets to the point of triggering the sensor, it’s time for a visit to the local repair shop.

Stalling – if your car repeatedly stalls out while you’re moving throughout the day, it’s a sign of a clogged fuel filter. As a clog worsens, it impacts the delivery system of fuel. When fuel can’t make it through the system as desired, it impacts the way your car handles.

How long will fuel filters last?

In general, manufacturers recommend changing out a fuel filter about every 30,000 miles. Of course, it depends on your vehicle. Check your owner’s manual for more details.

This is where maintaining a log can help you with early maintenance. As you get closer to the 30,000 mark, you can start watching for potential problems. Or simply bring your vehicle in for inspection and replace the fuel filter at the first sign of a problem. Being proactive will always benefit you, and prevent problems while driving down the road.

Can you clean a fuel filter?

Many different appliances you use in your daily life have filters that can be cleaned instead of replaced. With a fuel filter, they are made from a thin plastic or paper material that is easily compromised as it’s used. While you will find search results online that direct you how to clean it. For optimal results, it’s better to replace it.

Some fuel filters have metal elements that will direct you in ways to clean it. But the majority of fuel filters are designed to be used once and then replaced.

Changing a fuel filter will impact fuel efficiency

Today’s gas prices are climbing higher and higher. If you’re tired of watching your gas payment take a bigger bite out of your budget, fuel efficiency may be something to think about.

A clogged fuel figure equates to poor fuel efficiency.

A clogged fuel filter allows impurities to flow from the gasoline you pump at the station to all of the various components in the engine compartment. Clogged fuel filters eventually cause engine damage, prevent smooth drivability, and decrease fuel efficiency.

When trying to make the most of every dollar you put into the tank, servicing your fuel filter first will keep the costs down overall.

While manufacturers suggest replacing it every 30,000 miles, you can make it a part of your regular maintenance schedule, replacing it every other year.

Pay attention to how you drive. The more strenuous your drive is on the engine, the more maintenance visits you should schedule. If you do a lot of hauling, drive gravel or dirt roads frequently, or push your vehicle more in your daily commute, staying proactive will ensure the fuel filter stays cleaner and your engine stays healthier.

What fuel filter is best for your vehicle?

Not every vehicle uses the same type of fuel filter. Using your manufacturer’s information will point you in the right direction.

Fuel filters include:

Primary fuel filter – used commonly in diesel fuel systems
Canister fuel filter – shaped like a canister with a filtration system inside
Cartridge fuel filter – they include a cartridge containing the filtration media, structural components, and the fuel filtering parts
Spin-on fuel filter – uses threads to attach to the engine compartment
Inline fuel filter – mounted on the fuel line between the gas tank and the engine
In-tank fuel filter – mounted inside the gas tank

That’s why most vehicle owners leave it to the experts.

If you’re having problems with your vehicle’s performance and you suspect it may be a clogged fuel filter, your best course of action is to schedule a maintenance visit.

We can assess the situation, find the problem, and help get you back on the road as quickly as possible.

What other questions can we answer for you?

This Is Why Your Transmission Is Slipping

June 18, 2022 by Denver Express Car Care

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?

Sedans and Trucks Need a Different Level of Maintenance

June 14, 2022 by Denver Express Car Care

Reliability. That’s a word drivers regularly use when they start shopping for a new vehicle.

Whether you’re in the market for a sedan or truck, maintenance should be a simple process, with the potential for major issues to be kept at a minimum. Which is better?

Truck drivers will argue you can get more longevity from a truck. Drivers that prefer family cars focus their attention on four-door vehicles. Is one more reliable than the other?

What is reliability?

Reliability is defined as: the quality of being trustworthy or performing consistently well.

If you look at Consumer Reports, they attain reliability demographics by surveying members each year. In 2021, they received data on over 300,000 vehicles from 2000 and 2021 models. They track any problems with the vehicle that resulted in a repair bill, including warranty work.

If you ask drivers what they want from a reliable vehicle, they most likely want:

A car that doesn’t break down.
A vehicle where every repair is an expensive transaction that’s difficult to budget for.
A car that’s difficult to troubleshoot – every issue requires digging deep to find the root cause.

Reliability is most likely tied to the biggest components of a vehicle:

The engine
The transmission
The braking system
The electronic system (computer)

Adding motor oil to a vehicle is an inexpensive, routine maintenance item we expect. A blown transmission or a failing brake system could cost thousands of dollars, depending on what the problem is.

Sedans and Trucks Need a Different Level of Maintenance

What’s more reliable, sedans or trucks?

Every driver would have their own opinion on this, but a site called iSeeCars analyzed over 14.9 million cars sold in 2021 to determine the most reliable vehicle on the road, with the highest percentage reaching over 200,000 miles. Their findings included nine SUVs, three pickup trucks, two minivans, one sedan, and one hybrid hatchback rounding out the top fifteen.

Keep in mind that these vehicles were pushed for testing purposes. According to Kelley Blue Book, the average person puts on 14,263 miles per year. It would take you over 14 years to reach the 200,000 mark.

What should you consider?

Trucks and sedans are built differently. Therefore their required general maintenance will be on a different schedule as well.

Whether you own a truck or a sedan, preventative care and maintenance are key for extending lifespan. If you want a long-lasting car, being regular with fluid checks and inspection visits will ensure you get a full life from your vehicle.

Frequency of maintenance – Every model will have its own guidelines for inspecting and replacing different parts on a car. For oil changes, most manufacturers recommend a sedan be serviced every 3,000 to 5,000 miles, while a truck can wait up to 7,500 miles. Tires for a truck or built for hauling and pulling more weight. Tires for a sedan are built for performance, and tend to wear out more quickly. If you’re debating between two specific vehicles, you can compare guidelines posted by each manufacturer to help you finalize your decision.

Parts – if you’re planning on owning your vehicle for years, you can consider how easily you’ll be able to replace parts as they wear down, and how expensive they will be. After-market parts give you a chance to replace worn out parts with a comparable product that is more competitive and cost-effective. Trucks are designed to accept after-market products easily, so there’s almost always a way to fit a repair into your budget. Depending on the sedan you select, that might not always be the case. Specialty cars like BMW and Audi often require specific services to keep the sedan updated. That can make upgrading or replacing parts more expensive.

Drivability – when you look at the suspension system of the two, a pickup truck offers higher ground clearance. They also have an increased suspension system to lessen the effects of the road. That’s why pickup trucks are more comfortable and safer for off-roading. Sedans are meant for comfort. They sit lower to the road and have built-in suspension parts to add to the comfort of your drive. Manufacturers get very specific with the way they build sedan suspension systems. Tires, shocks and struts, and the necessary parts attached to the suspension system can be fine-tuned to offer you greater performance.

Engine – another part of life expectancy is through engine performance. With a simpler system and fewer parts, it’s easier to maintain. A standard pickup truck is usually going to have a straightforward engine compartment where fewer things can go wrong. With a sedan, manufacturers install all kinds of features to improve performance. With a turbo or supercharger, the parts can be more fragile and complicated, which can also make them more unreliable in the long run. If it’s harder to get replacement parts, you might be without your vehicle longer while it’s being repaired.

Comfort – what are you looking for in a vehicle? Do you want something to haul kids to and from school and activities every day of the week? Are you looking for a vehicle to get you around town? Or are you looking for something to take into the mountains each weekend, satisfying your desire to get away from it all? Trucks are made for hauling. If you wish to tow your boat, camper, or trailer to take advantage of all Colorado has to offer, a truck may be the perfect choice. Sedans work better for urban driving, when comfort and safety are your biggest concerns.

Maintenance – for whatever vehicle you drive, maintaining it will ensure you get the longest life possible from the moment you drive it away from the lot. The key to longevity is being on top of the maintenance schedule established by your car’s manufacturer. It starts with small things like oil changes and rotating the tires. It continues with inspecting the major systems – i.e. brakes, transmission, suspension – regularly to ensure they are in good working condition. Be proactive with your maintenance and your car will be there for you.

What will you pick – sedan or truck?

Luckily, there’s a place for both sedans and trucks in our lives. In fact, many families choose to have both to take care of all their needs.

Whatever you drive, with a regular maintenance schedule, you’ll ensure it lasts for years.

How can we help you keep your vehicle in top condition?

What The White Smoke From The Exhaust Means

June 7, 2022 by Denver Express Car Care

Car maintenance is a little bit timing when to bring your vehicle in for inspection, and a little bit noticing the signs your car makes when it’s warning you of potential problems.

One of the things you never want to see is smoke pouring from the exhaust, regardless of the color. This signifies a deeper, internal problem, and suggests something is wrong. In general, a cloud of thick white smoke indicates a major issue needs to be addressed quickly, or risk something as serious as a blown engine.

Understanding the exhaust system

Before we analyze what smoke coming from the exhaust pipe might mean, it’s important to understand what it is and where it comes from.

Essentially, your vehicle’s engine needs four things to work:

Fuel
Air
A spark
Timing

Fuel is the basic lifeblood of keeping your vehicle working. Too much, and it runs rich. This can waste fuel, but can also eventually damage the engine. Too little, your engine will struggle, or not run at all.

Air mixes with the fuel, which causes it to flow either at the perfect level, or can cause it to run rich or lean. As the two mix, it combines with a spark to ignite the fuel and start the car. This needs to have the right timing to ensure the engine runs efficiently.

This timing affects how much emissions your engine emits. As your car ages, the process becomes less efficient. Older parts can mean each process is just a little off. That’s why older cars have less rigid emissions standards than newer cars.

What The White Smoke From The Exhaust Means

What normal exhaust looks like

The exhaust pipe is there to pull emissions from the engine compartment and release it away from your vehicle. The gas coming from your tailpipe should be clear. On a cold day, the moisture in the emissions can sometimes look like a thin, white cloud.

That’s because gas moves through a process to clean it before it’s released into the air supply. The catalytic converter is an exhaust emissions control device that converts the toxic gasses produced by the engine, and transforms into less harmful pollutants by changing their chemical structure.

If you see something other than gas and air moving from the tailpipe, which has a clear visual appearance, you’ll notice it as smoke. A thick plume of white smoke from the exhaust comes from either water or coolant burning.

Water or coolant can sometimes leak, moving into the combustion chamber as your vehicle operates. It can move through cracks in the cylinder head or engine block, or if your vehicle is experiencing a blown head gasket. Any of these indicate a major repair.

White smoke is pouring out of the exhaust pipe … now what?

White smoke is a clear indicator of a bigger problem. The more you drive your vehicle, the more extensive damage may occur inside the engine compartment. Continuing to drive with a crack in the cylinder head, engine block, or coming from a blown head gasket could lead to further damage, contamination, or possible overheating. Drive too far under these conditions and you’ll have to replace the engine to get it operational again.

Another way to check where the problem originates is by checking the coolant level. If it’s low and you don’t see coolant leaking anywhere else in the engine compartment, it supports the theory that there is a leak in the engine block or head gasket. Once this is cracked or blown, replacement is the only way to repair.

Q&A – Common questions we get about white smoke from the exhaust

Q: Can low oil be the root cause of white smoke?

No. If oil somehow makes it into the combustion chamber, you’ll see a blueish smoke emitting from the tailpipe.

Q: What if the smoke looks black or gray instead of white?

Each color indicates a different problem. Black smoke can mean too much gas is burning, the air filter may need changing, or the fuel injectors may be clogged. Gray smoke is often caused by burning excess oil or a crankcase ventilation valve malfunction. With an automatic, gray smoke can also be a sign of a transmission fluid leak into the engine.

Blue smoke has a few causes. It could be motor oil burning in the fuel system, valve seals or piston rings breaking down. Cars with high mileage are also prone to emitting blue smoke. If you notice blue smoke, watch it for a bit. If motor oil is accidentally spilled onto the engine, it may look blue as it burns off. If it disappears right away, it’s probably nothing.

Q: What is in the exhaust that makes it so bad?

Exhaust gasses come from the combustion process inside the engine. As it operates, it produces carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxide, and hydrocarbons. Carbon monoxide is poisonous and needs to be directed away from the vehicle. The catalytic converter’s job is to convert it into carbon dioxide.

Q: What about bad spark plugs? Can they cause white smoke emissions?

No. Spark plugs are used in the ignition system, but they don’t cause white smoke. Spark plugs have their own symptoms if they’re going bad.

Q: What if smoke only appears when climbing a hill?

That can be common here along the Front Range, especially if you regularly pull heavy loads into the mountains. It’s almost always darker smoke, ranging from dark gray to black. The usual source of the problem is the carburetor. If the carburetor sends more excess fuel into the system when the engine is already stressed, it can create a puff of smoke. If this is the only time you see it, there’s nothing to worry about.

Q: What about electric cars? Would the same problem exist with electric?

Exhaust gasses are produced with combustion engines. Because electric vehicles run on a battery, it won’t produce exhaust. In fact, electric cars won’t have a tailpipe on their design.

Do you have white smoke coming out of the exhaust?

If so, it’s time to bring your vehicle in for servicing. Different shades of color will mean different things. But if you continue to see smoke of any color, it’s an alert that something is wrong.

To reduce higher repair bills, coming in sooner will catch the problem early, and hopefully prevent it from escalating over time.

What questions can we help you answer about the exhaust system?

Why Your Battery Light May Come On While You Drive

June 4, 2022 by Denver Express Car Care

On most days, you slide behind the wheel, turn the key, and start your day. Your car starts. Everything works well. You move throughout your day without thinking about how well your car operates.

On some days, you start the car and instantly are alerted to an issue. Maybe it’s a noise, or a sound.

It takes a lot of power to start your car and bring the entire system up and running. That’s where you’ll notice most inconsistencies with your vehicle.

Yet problems can begin at any point during your drive. What if you’re moving down the road and the battery light comes on while you’re driving? What does it mean? What should you do?

How a conventional battery works

While the sale of electric cars is increasing, most drivers on the road today still use conventional vehicles. That means most vehicles are still powered with a conventional car battery.

Car batteries are used to store energy to keep the car and its accessories running. Batteries use chemical energy to start, and to recharge during operation.

When you insert the key or push a button, it signals the battery to switch to “on.” The car battery converts chemical energy into electrical energy, and delivers it to the starter to turn over the engine.

The standard car battery runs on 12-volts of power. If the battery’s voltage drops, it impacts performance. It can change the way your car runs as you drive down the road. It can also show up in the accessibility of your vehicle’s accessories. Ever had a problem with the radio working, or the headlights dimming? That’s a clear indicator you have a problematic battery.

Why Your Battery Light May Come On While You Drive

What it means if the battery light comes on while you drive

It takes a lot of power to start the engine. It’s when you’ll most likely notice a problem with the way your car operates.

Yet things can also happen as you drive down the road. If you notice the battery light turn on your dashboard, you could be dealing with multiple issues:

A failing battery
Corroded battery cables
A faulty alternator
Damaged battery cells
A loose battery cable
Defective wiring in the car’s charging system

Most problems start small and escalate over time. Paying attention to how your vehicle operates can alert you to minor issues before they become full-blown problems. The battery light is an indicator of the onset of a problem. It could be something small or several issues at once.

If the battery light comes on and stays on, there’s a problem with its performance. If left unaddressed, your battery can run out of power while you’re driving. And that can impact safety and performance.

What can you do?

It’s only natural to want to troubleshoot an issue before you bring it in for a full inspection. If your battery light comes on and stays on, there are a few things you can check before scheduling an appointment. Minor issues can include:

Loose connection – your car goes through a lot as you drive. Connections can jiggle loose, causing your battery to lose full power. Check to see if the cables are still properly attached to the battery. A poor connection can cause a short within the system, illuminating the battery light.

Dirty battery – driving can cause a whirlwind of dirt, debris, grime, chemicals, and other materials to settle underneath the hood. If your battery is filled with dirt or grime, it can impact the connection, and illuminate the battery light.

Corrosion – chemicals or pollutants can come from the exhaust system or spray up from the road. If it accumulates on the top of the battery terminals, it may result in corrosion. This is more common in the summer months, where heat is prevalent.

When you clean your car, pop the hood and look underneath. If you notice dirt, grime, or corrosion forming on top of the battery, you can clean it and ensure the connections are in place. But if you do these things and the battery light is still displayed on your dashboard, the problem is more serious and requires a mechanical inspection.

Is it safe to keep driving?

If you’re driving and your battery light turns on, it’s alerting you your car is unsafe to drive. Because it’s illuminated because of a faulty alternator, battery connection, or some other mechanical problem, it’s wise to have it inspected as quickly as possible.

Safety is everything. Find a safe spot to pull over, then further assess the situation. Is it difficult to steer? Do you notice other compilations with your drive?

If it impacts your power steering, it can be difficult to drive. That makes it unsafe for you to be out on the road, putting you and other drivers around you at risk.

If you are close to home, or can drive your car in to see one of our mechanics, we can assess the situation and get you back on the road. Driving the car may put you in danger, so it’s important to get it checked out before you start driving once again. Keep in mind that once you turn the engine off, you might not have enough battery power left to start it back up. Ensure you’re in a safe place before you flip the switch and turn off your vehicle.

To get the most out of what’s left in the battery, reduce all accessories to ensure full energy is going to the essentials. Turn off the heater or air conditioner, don’t use power windows, unplug your devices from the charger, and flip the radio to the off position. Keep an eye on the temperature gauge, as engine overheating may be a further sign of charging problems.

Have you experienced problems with your battery light coming on while you drive before?

Preserving Your Truck’s Value With These Maintenance Tips

May 28, 2022 by Denver Express Car Care

Owning real estate adds to your balance sheet, providing you with an item that appreciates over time.

Vehicles rarely work that way. Most new cars and trucks start to depreciate from the moment you drive them off the lot.

Yet there’s a lot of wiggle room for what your vehicle will truly be worth when you try to sell it. If you own a truck, preserving the value starts by performing regular maintenance and keeping it in the best condition possible throughout its life.

But what does that mean? How do you maintain your truck to preserve its value, ensuring you get top dollar when it comes time to sell?

This is what makes the most difference in keeping your truck in top condition.

Schedule oil changes regularly

Some basic maintenance items are more important than others. You can add “oil change” to this list.

Regular oil changes fall right behind “keep fuel in the car” as a fundamental need to keep your truck on the road. Yet many drivers “forget” and wind up with problems because there isn’t a direct reminder system built into your car. (Outside of your car seizing if it no longer has motor oil!)

Preserving Your Truck’s Value With These Maintenance Tips

Motor oil provides lubrication to many of the internal components within the engine compartment. To avoid damage and keep the engine running smoothly, it needs fresh, dependable motor oil present every time it runs. Today’s modern vehicles don’t burn oil the way they did a few decades ago, but trouble will arise if oil isn’t provided at necessary levels. It’s the lifeblood of the modern day vehicle.

There is confusion about what oil changes look like in a truck. While the 3,000 mile rule is in place for cars, it’s not as steadfast for trucks. The best way to find out what’s best for your truck is to read your owner’s manual and abide by manufacturer’s guidelines. Today’s trucks often need changing about every 5,000 to 7,000 miles.

Monitor your tires

If you want to extend the life of your pickup truck, give the tires a little TLC along the way. This goes beyond replacing them when they’re worn down.

Trucks usually wear each of the four tires down in different proportions. Front tires may wear differently than rear tires. And it often depends on the type of driving you do. Do you head off-road? Or haul heavy loads? All of that can impact the wear of your tires.

In general, manufacturers recommend rotating your tires every time you schedule an oil change. This provides a more even wear process for each of your tires, and extends the life of a set of four to maximum levels.

You should also check tire pressure regularly to prevent under and overinflation. Underinflation can lower the flexibility of the tire, making your vehicle more squirmy when you corner or come to a halt. Overinflation can ultimately wear the inner tread faster than the outer tread, creating less contact with the road. Both put you at risk and increase your chances of an accident.

In addition to rotating the tires regularly, you should also balance and align the tires every other oil change to ensure ultimate control.

Keep your car clean, inside and out

Here in Colorado, a dirty car can impact more than the paint. If contaminants and chemicals accumulate on the undercarriage, it can break down various components and wear out systems before their time.

Have you ever seen a “brand new” truck that’s actually a decade or more old? Chances are it was owned by someone who took “cleaning” seriously. Washing it regularly ensures the paint isn’t harmed by chemicals eating away at the paint. Waxing the exterior is also a great way of sealing the paint from the harmful effects of the environment. And we have a bunch of them here in Colorado’s climate. Those UV rays will stay at bay with a fresh application of wax.

Don’t stop cleaning once the outside is done. The inside is equally important. It’s a great way to keep the interior finishes looking their best, and prevent rapid deterioration of vinyl, cloth, or leather seats.

Once the finishes are clean, continue by popping the hood of your truck and keeping the filters clean. Both oil and air filters on a pickup truck are a crucial part of truck maintenance.

The air filter is critical because it traps dirt and prevents it from moving into the engine compartment, causing it to lose efficiency and functionality. A clean air filter also helps prolong items like spark plugs and ignition, to ensure your car runs smoothly every time you drive.

If preserving the value is important to you, say “yes” to a new filter every time you schedule an oil change. It’s an easy way to keep it running efficiently every time you drive.

Don’t wait for a battery to die, replace it instead

Batteries typically have a lifespan of 3 to 7 years. But if your truck takes you everywhere from off-roading to hauling heavy loads up the mountain, it’s better to err on the side of replacing the battery frequently.

If the “check engine” light pops on, it could be for many reasons. An inspection will allow a mechanic to hook your truck up to a diagnostic machine and find out right where the problem lies. If the battery is weak, it’s good to replace it before it leaves you stranded.

You can also perform a physical check from time to time. Do you notice buildup on top of the battery? Does the case look as if it’s swollen? Do you see spots of corrosion? All are good indicators of a potential problem with the battery.

Batteries often quote several years of life, but once you move into the lower spectrum, it’s a good idea to have it tested regularly as it continues to age.

What do you do to preserve your truck’s value?

When in doubt, schedule an inspection. Allowing a certified mechanic to evaluate the various systems and pinpoint where problems lie is the easiest way to keep it running for years.

When was the last time you scheduled a maintenance visit? Make one today.