Denver Express Car Care

Why Are My New Brakes Squeaking?

September 7, 2020 by Denver Express Car Care

You know when people at an event find out someone is a doctor, they start questioning them about all that ails them? The same holds true for an auto mechanic.

Of course, I’ve had people ask many different questions. But one pops up quite frequently:

I just replaced my brakes a few weeks ago. Why are my new brakes squeaking?

When you own a vehicle, it comes with the general understanding that you’ll have to provide regular maintenance to keep it running smoothly. That means gas, oil changes, new tires, and the occasional brake job to ensure you stay safe and secure.

While every manufacturer is different, on average, brake pads need to be replaced about every 40,000 miles. You should check with your car’s manufacturer; you can find more information in your owner’s manual.

Also, keep in mind that 50,000 miles is just a guideline. Some cars may need new brakes after 25,000, others can push it to 75,000. It depends on a wide variety of factors, including your driving habit and road conditions.

But what happens when you are diligent at maintenance, you replace your brakes, only to find a squeaking noise every time you press down on the brake pedal just a short time later?

There are two kinds of brakes

First of all, it’s good to know a little bit about your car’s braking system.

Most cars on the road today have disc brakes. This is where a brake pad presses against a rotor or disk in order to effectively stop the vehicle. If you have a car with disc brakes, the squeaking can be caused by:

Settling overnight. If it’s rained, or condensation from moisture or dew forms on the breaks, it can squeak as your car first starts out.
Wearing down. As brakes wear down, the pad thins until it reaches a built in core designed to make noise to warn you it’s time for replacement.
Installing cheap breaks. Yes, there are differences in brake manufacturers. This is where it’s important to trust the mechanic installing your brakes.

Some vehicles also use drum brakes located on the rear wheels. Cars with drum brakes are installed with a curved pad that presses against a drum to stop the vehicle. They start to squeak when the pad contact points run out of lubrication.

What causes your brakes to squeak?

If you haven’t replaced your brake pads in a while, and you’re moving closer to your manufacturer’s suggested time frame for replacement, the squeaking can be caused from a thin brake pad. But if you’ve replaced your brake pads recently, that squeaking noise you’re hearing can be caused by other things.

Metal fibers – A lot of brake pads are made from metal fibers. Occasionally, some of these metal fibers are too close to one another, and rub together. This can cause a squeaking noise until they wear away.

Panic stopping – You know that feeling of driving and having someone dart out in front of, causing you to stomp on the brake pedal? That’s panic stopping. And when you do that right after a brake job, it can heat up the brakes and produce a glossy finish on the pad. This causes friction when you apply the brakes from that point forward, causing a squeaking noise.

Brakes stuck – The brake system works by a series of caliper pins that release and contract the brake pads to the rotors every time you step on the brake pedal and release it. If one of these caliper pins gets stuck, the brake pad sticks at an angle to the rotor, creating a squeaking sound. It’s also important to note that if both caliper pins stick, the brake pad will remain against the rotor, which typically results in a burning smell. A quick trip to a mechanic will allow us to release the stuck caliper pins and ensure it’s well lubricated, or determine if they are damaged enough to warrant new calipers, which in many cases also means new brake pads and rotors.

Brake rotors – While you may have replaced the brake pads, there may be a problem with the rotors. If the rotors weren’t replaced with the brake pads, they might not have meshed with the new brake pads. This can cause the squeaking sound, and it may take longer to come to a stop.

Low quality brakes – It may also be a fact the brake pads are of lower quality, and aren’t well suited for your vehicle. Not all brake pads are created equal. If you went with a discount brake shop, or “trusted” a friend of a friend, they may have sold you brake pads that aren’t appropriate for your vehicle. Cheap brake pads may be more prone to brake dust. This can cause more squeaking noises as you drive.

Now that you have squeaky brakes, what can you do about it?

Squeaky brakes are one of the most annoying problems you can have with your vehicle. It’s designed that way because it’s also one of the most dangerous.

But squeaky brakes are even more annoying when you’ve recently had them replaced. They can’ be in bad shape, so why the noise?

By reading the few causes from above, you might already have a good idea of what could potentially be wrong. This is where it’s important to understand how your vehicle works.

You can start by looking for loose connections or parts. In some cases, the mechanic may not have tightened the calipers, pads, and other components all the way down. This vibration may cause some sounds.

If you notice any loose clips or components, they should be replaced immediately.

You can also check the brake pads for signs of wear. Modern disk brakes have wear markers designed to make noise when the pads are close to wearing down. If you hear noises, it’s best to let a professional mechanic check out your braking system, and ensure everything is working at its best.

If you have any questions about how your braking system is working, don’t wait. It’s one of the most important systems on your vehicle. We’re happy to check the condition and correct any problems we may find.

And get you back on the road in no time.

Do You Really Need To Change Motor Oil Every 3,000 Miles?

September 4, 2020 by Denver Express Car Care

Driving a car means you have to perform a few maintenance tasks along the way to keep it running well. We know we have to fill it up with gas, or it will die. We understand motor oil is necessary to keep the engine running. We need new tires, or we put the passengers inside the cabin at risk.

But when?

Everything comes with a warning sign. As that little needle gets closer to E, you’re aware if you don’t stop at a gas station, you’ll be stranded along the side of the road.

Popular guidance tells you to replace the oil in your car every 3,000 miles. But is that the best advice?

Do you need to change your motor oil every 3,000 miles, or is there some other way to evaluate when it’s needed?

What motor oil does

What does motor oil do inside your vehicle? Most of us know that motor oil keeps your car running, but it does a lot more than that.

Today’s motor oil is a complex mixture of oils and additives that accomplish a variety of things under the hood. It:

Lubricates moving parts
Helps reduce engine wear
Removes dirt and contaminants from the oil
Cools engine parts
Enhances fuel efficiency
Protects the engine against heat and cold
Helps protect the emission system

Without the proper motor oil inside your vehicle, it’ll quickly wear down various parts.

Every time you start up your car, the combustion process degrades your motor oil. It adds contaminates to the oil supply, which over time, builds up. In the beginning, motor oil can handle it without issue. But as it wears, it continues to break down, turning into sludge that can harm your engine.

That’s a lot for a few cans of motor oil to handle. That’s also why it’s essential to change it out regularly.

But is it important to change motor oil every 3,000 miles?

Now that you know why changing out motor oil is important, let’s get back to the question of how often.

It doesn’t take a lot of searching online to discover there are many different views on how often you should change out your motor oil. But who’s right?

Start by looking at the source of information.

Quick-lube places will tell you to change your oil every 3,000 miles. They even give you little stickers as a reminder.

It’s important to consider the source, however, before you take their advice. Quick-lube stores offer one service: motor oil changes. That means they have a vested interest in getting you in as much as they possibly can. They are also usually sponsored by a particular brand of motor oil. Again, it’s all about the sales.

Another resource to look at is your own vehicle’s manufacturer. If you check your owner’s manual, you’ll likely find they make their own recommendations. With today’s technology, a lot of them recommend an oil change every 5,000 to 7,500 miles.

That’s a lot different than the 3,000 miles.

But there’s another thing to consider. In most cases, it’s not about how many miles you drive, it’s also about the timeframe between oil changes. For some drivers, it may take a year or more to hit the 3,000 miles. Others may hit that mile marker in a matter of days.

Driver A works from home and only takes their car out to run errands. They drive ten miles or less at a time, with constant starting and stopping. With frequent stops, the motor oil never heats up enough to boil off the moisture condensation. That means more engine wear over time. They shouldn’t pay attention to the 3,000 rule, but should instead change it out twice a year or so.

Driver B has a long commute, driving more than 20 miles one way that consists of mostly highway driving. With this slow and steady drive time, they could easily push the upper edge of what their vehicle’s manufacturer recommends.

In both cases, as the car ages, more frequent oil changes may be in order. Remember, the key to keeping your engine running well is clean performing motor oil. It’s one of the least expensive ways to ensure your car stays running smoothly.

What type of motor oil should I use?

All motor oil is not the same. Which motor oil you use in your car should be determined by a variety of factors, including the climate you live in, your driving habits, as well as the age of your vehicle.

When you bring your vehicle into our service station for an oil change, you can discuss which type of oil you prefer to use for your engine. We’re here to give you advice every step of the way.

In general, there are four types of motor oil:

Synthetic motor oil – this is ideal for high performance vehicles. It provides higher viscosity levels and helps fight oil sludge.

Synthetic blend motor oil – this is becoming increasingly popular as it combines both conventional motor oil with synthetic. It offers extra resistance to oxidation, and more protection against lower temperatures.

Conventional motor oil – this is ideal for older models cars that have operated on this type of motor oil for years.

High mileage motor oil – This is specifically blended for vehicles that have exceeded 75,000 miles. It helps minimize leaks and reduces emissions.

When was the last time you changed your motor oil?

To work out a plan that works well with your vehicle, talk with one of our mechanics today. We can give advice on how often it should be replaced, and what type of motor oil to add to your vehicle’s system each visit.

Simple Answers for Water Pump

August 31, 2020 by Denver Express Car Care

Question: My water pump went out and it costs much more to replace than the ones I’ve replaced in the past. My technician said it’s because of where it’s located. Why is that?

Simple Answer: Some water pumps are driven by the serpentine belt and are bolted on out in the open with the alternator, air compressor and such…other water pumps are driven by the timing belt. These water pumps take a lot of labor to access and replace. We suspect your current vehicle has a water pump that is driven by the timing belt.

Water pumps are fairly simple devices that circulate engine coolant/antifreeze around the engine and out to the radiator. Like every mechanical device, they eventually wear out. Although having a cooling system service done on schedule at Express Car Care will extend the life of your water pump and its seals and gaskets, it will eventually fail and need to be replaced.

The water pumps that are driven by the timing belt (the belt that controls when your engine intake and exhaust valves open) are attached directly to the engine block. The timing belt system has a protective cover. The serpentine belt and all the accessories are located over the timing belt cover. So getting to the water pump requires removing a lot of parts which then need to be replaced.

When the water pump must be replaced, we at Express Car Care, think it is a good idea to go ahead and also replace the timing belt, timing belt tensioner and idler pulleys. First, because the timing belt may have been contaminated by leaking coolant; second, there is a schedule for replacing your timing belt and you might as well make the modest additional cost while everything is taken apart so you can avoid the same labor cost down the road.

By the way, the reverse is true as well: When you are replacing your timing belt on schedule, go ahead and replace the water pump at the same time. It would be a shame to spend the money on one of these replacements only to have to do it all again in a few months because the other part then needs to be replaced. Do them at the same time and start the clock over for both.

Your Car’s Heating and Cooling System Does More Than Keeping You Comfortable

August 29, 2020 by Denver Express Car Care

When most people think about temperature control inside their vehicle, they usually consider them to be two separate systems. Heating is used in the winter, cooling is used in the summer, with the most important part of the process being comfort.

Imagine arriving at your destination if you’ve driven across town in one-hundred degree heat and no air conditioning. It would be a miserable experience. Equally so as the temperatures creep towards zero, without a heater warming the interior cabin.

What makes both possible is the ventilation system that connects all the parts together. Yes, you need a heater and an air conditioner. But without the ventilation system providing a way for cooled or warmed air to move, you would be left to control temperatures by raising and lowering your windows.

So, how does your car’s heating and cooling system work?

Let’s talk about how your heater and air conditioner are related.

How a car’s heater and air conditioning works

Your car’s heater is a smaller version of the cooling system. Coolant circulates through a small radiator, often called a heater core. A fan is used at the front of the heater core to blow the cold air from outside over the fins. As this air moves through the heater core, it heats and becomes the warm air that is pumped inside the cabin through the heater vents.

The cooling system consists of a compressor, condenser, and evaporator. Refrigerant is compressed in the compressor, which turns into a hot gas. It moves to the condenser where it is cooled to a liquid state. It continues to move through the system, returning to a low-pressure gas as it rapidly cools in the evaporator. A fan blows over the evaporator during this process, cooling the air that blows through the vents inside the cabin of your vehicle.

Sounds easy enough, right? It’s easy to see how they are both connected. But they intertwine even more.

As the engine runs and causes friction and combustion, heat builds. Most of this is expelled through the exhaust system, but the remaining heat must be handled in some way. Coolant and water mix within the engine block and radiator to release the heat into the atmosphere. On cold days, that heat travels inside your cabin for warmth. But on warm days, your engine could overheat if something disrupts this process. That means your heating system is responsible for keeping your engine functioning properly all year long.

Likewise, on cold winter mornings you might wake to a layer of frost spread across your windshield. It’s not just your car’s heating system that warms it up, it’s the cooling system too. Multiple components all work together to pull humidity out of the air, helping to defrost your windows so you can see to drive. If you notice defogging issues, it may be time to recharge your air conditioning system, or check for leaks or damage.

What are the common problems with a vehicle’s heating and cooling system?

Have you ever heard of a vehicle needing to recharge the air conditioning system? That means ensuring the refrigerant is at proper levels to do its job well.

From time to time, refrigerants can wear down or leak. If this is the case, the equipment should be repaired before refilling to ensure maximum efficiency. It can be difficult to tell as some leaks are tiny at best. But you can watch for puddles forming that are either green or orange. Healthy coolant will be green (ethylene glycol) or orange (Dexcool). If it puddles as more of a rusty color, that means the rust inhibitor in the coolant is no longer doing its job, so rust and scale are building up. Changing it out will breathe new life back into your heating and cooling system.

Topping off the coolant may seem like a quick and easy thing to do. You can buy coolant at your local auto parts store. But the bigger question is: why was it leaking in the first place? The way the system is built, it should never leak coolant. That means somewhere there is a compromise to the system. It could be a cracked hose. It might be a radiator cap gone bad. It could be a damaged water pipe. But if you don’t get to the root of the problem and fix it, you’ll continue to have trouble even after filling up the coolant.

Depending on how old your vehicle is could be a problem too. The EPA phased out the use of R-12 coolant in all refrigeration systems, replacing it with R-134. R-12 has been determined to cause ozone depletion, impacting the ozone layer. So it’s been phased out over time with one safer for the environment. If you still drive a vehicle that uses R-12, you may need to retrofit the system to handle the newer R-134 coolant. Seales, hoses, even the compressor might need to be swapped for a newer model.

Corrosion will also cause the core to leak. Over time, it may leak steam into the interior cabin and fog up your windows. You may also detect a leak by a sweet smell coming through your vents when the system is in operation.

Prevention methods

In most cases, your car’s heating and cooling system won’t create a lot of problems. If you pay attention to your car, running standard performance checks every time you drive, you’ll notice a problem long before it grows into something bigger. If you notice a problem with heating or cooling, hear a strange noise, or smell something unusual, don’t ignore it. Once may be a fluke, but if it happens multiple times, bring your car in for an inspection.

With winter coming, it’s especially important to ensure your heating system is working at its best. Have you noticed problems with your air conditioning this summer? Is your car not as cold as it once was? Schedule a maintenance visit today to ensure your heating and cooling system are fully operational.

It will ensure you have a stress-free driving experience every time you head out the door.

Is Your Car Experiencing One Of These Common Suspension Problems?

August 26, 2020 by Denver Express Car Care

From the moment you drive a brand new car off the lot, it’s placed in stressful situations every day.

That curb you nudged going around a corner? That may have damaged your tire.

That pothole you hit this morning on the way to the store? That may have compromised your suspension system.

Your car was perfectly designed, put together with care. But the world around you is anything but a perfect place. You can dodge a car that turns into your lane, jump when a rock hits your windshield and causes a crack, flinch when damage in the road jars your car, and all that is getting out of your neighborhood.

Imagine what happens to your car over the course of a year!

What does the suspension system do?

Before we get into all of the things that cause common suspension problems, let’s first take a look at what it does for your vehicle.

Imagine heading out on the open road, and pushing the pedal to the floor to reach 60, 70 miles per hour and more. What gives you control is your suspension system. What makes it a comfortable ride at every speed is your suspension system. Without it, you’d quickly spin out of control.

The primary function of the suspension system is control. It maximizes the connection between the tires and the road. It provides steering stability. It creates even weight distribution between all four wheels. It ensures comfort by absorbing every bump in the road. It limits the stress placed on other parts of the car, ensuring your vehicle sustains a long lifespan.

The suspension system consists of:

Tires
Air pressure in the tires
Shocks
Struts
Springs
Arms
Bars
Linkages
Bushings
Joints

All suspension parts are located somewhere between the frame of the vehicle and the road. It is designed as a protection system, creating a buffer between your car, the road, and you safely inside.

How do you know if your car has suspension problems?

Even though you can select a car from many different manufacturers, in many different sizes and shapes, they are all built with the same structure and way that they operate. Yes, you have the choice of purchasing many different types and styles of tires, for example, but they are all designed to provide the same basic function.

That makes it easy to recognize when things aren’t working right, no matter what vehicle you drive. There are common suspension problems that materialize when a part weakens or no longer works.

Pulling to one side

At the top of the list, one of the most common signs of a suspension problem is when the car pulls to the left or right while you drive. It’s also a difficult problem to diagnose without the help of a trained mechanic. That’s because it can be a whole host of different issues. It could be an alignment issue. Uneven tire wear. Or a problem with the steering wheel. It can be a problem with the tire rack. Or possibly a sticking problem with a brake caliper.

Every pothole you hit, every bump in the road can jar something loose. If your alignment is out of whack, there’s a reason for it. Some part has either come loose, or is broken altogether. And the only way to get your car back in good working condition is to get to the root of the problem.

A bumpy ride

What happened to your nice, smooth ride? Suddenly, your car feels like an old beat up truck.

A rough ride is a clear indicator that your shocks and struts are worn out or in need of repair. Shock absorbers are designed to absorb every bump in the road. They have hydraulic fluid inside that helps dampen the bouncing motion as it connects with the road. If they lead, your performance suffers.

One corner sits lower than the rest

As you walk up to your car, take a quick look at how it sits. It should always be level. If it isn’t, there’s a problem. When one corner sits lower than the others, it’s likely a damaged spring. You may also start noticing a clunking noise as you hit a bump or turn a corner. That’s because the spring can no longer support the weight of the vehicle.

The shock and the spring are interconnected. If the shock is blown, it overcompensates by compressing the spring, lowering that side of the vehicle. Even the slightest height variance can be a sign of a problem.

Nose dives and rolls

If your car nose dives or leans forward as you brake and come to a stop …

If your vehicle rolls or leans side to side as you turn into corners …

If your vehicle squats or leans back as you accelerate from a stop …

You have a suspension problem.

Difficult steering

Have you ever had a hard time steering your car? Normally, it moves easily, one hand can take control. Then it grows in difficulty, it might even feel like it slips as you turn. This can be caused by a number of problems, including low power steering fluid, a faulty steering pump, a leaking power steering rack, or worn out arm bushings.

The best way to find the root of the problem is to schedule a maintenance visit with one of our mechanics.

Can you fix suspension on a car?

If you notice any of the common suspension problems listed above, to remain safe, don’t drive your vehicle any more than you have to. Bring your car in quickly to avoid further damage.

The biggest reason is one part can impact others. And what may have been a few hundred dollar repair can escalate into the thousands. It can also escalate from a minor repair into an emergency situation.

Imagine a problem with low tire pressure suddenly moving to critical level with a tire blowout.

That’s just one example of things that can go wrong.

If you suspect you have a suspension problem, don’t delay. Have one of our trained mechanics take a look and diagnose the problem today.

Why Wheel Alignment and Brake Inspection Is Vital For Your Safety

August 18, 2020 by Denver Express Car Care

When you invest in a new vehicle, a significant amount of your money goes out each month to keep it in good running condition. You change the oil regularly. You put new tires on periodically. You know that by doing a little maintenance work throughout the years, your vehicle will provide you with a reliable ride indefinitely.

Yet sometimes it can be difficult deciding what’s important, and what isn’t. Is a maintenance item more cosmetic by nature? Or should it be handled quickly to reduce the chances of a bigger problem arising in the future? That may be especially true this year, if you’re trying to find places to curb spending. Why not put off that maintenance task, or ignore the feeling you have that something isn’t quite right? If you do, you might end up with a bigger problem down the road.

Let’s talk about two major systems that are vital to how your car operates. Even if money is tight, regular wheel alignment and brake inspections will give you peace of mind that your vehicle will keep you and your family safe as you drive.

Is wheel alignment really necessary?

Let’s start with what a wheel alignment does for your car. When you get behind the wheel and drive down the street, you expect your vehicle to stay on track and drive straight with minimal effort. Your wheels were designed that way.

But driving can be hard on an alignment. Every pothole you hit, every sharp turn you make, every mile you drive has the potential to damage your wheels. It rarely is impacted all at once (although it can happen that quickly). Instead, it occurs over time, depending on the way you drive your car.

Sometimes you can see it, feel it. Take your hands off the wheel for a moment; does your car pull left or right? That’s a sure sign you’re in need of a wheel alignment. However, misaligned wheels aren’t always noticeable. In some cases, your vehicle can seemingly be going straight, but a misalignment can be affecting the accuracy of your vehicle’s response system. And that can be dangerous at best.

Misaligned wheels impact tire wear. Tires can wear out faster. Your fuel economy will suffer. And you may wind up in harm’s way as your vehicle takes longer to respond to the actions you make.

Can wheel alignment affect braking?

When you drive, you rely on your tires to turn you in the direction you choose to go. Sometimes it’s a split decision to move right or left, to avoid things in your lane. Without that ability, it puts you and your passengers at risk.

If your wheels aren’t able to turn and move quickly, it can also impact your braking. The brake pads might not be applied to the wheels at the same force, causing your car to spin out of control.

Your car has brakes on all four wheels. Each brake is operated by a hydraulic system, with either a disc or drum brake providing the force. The front brakes provide more stopping power because as you brake, it throws the weight of the car forward onto the front wheels.

As you push down on the brake pedal, it allows hydraulic fluid to travel through a pipe, to a cylinder at each wheel, forcing pistons out to apply the brakes. Hydraulic fluid ensures even distribution throughout the system, ensuring all brakes receive identical braking pressure at all times.

Anything that disrupts that connection puts you and your vehicle at risk.

What a braking inspection does

You already know that your braking system is one of the most important systems in your vehicle. That’s why it’s equally important to ensure they are working correctly at all times.

As brakes are used, the friction created as the pads press against the rotors can cause grooves. The deeper the groove, the more impact it can have on the way your vehicle stops. You’ll have to press down harder on the brake pedal to achieve the same results.

Worn brake pads can further damage the brake rotors. Time and wear can also reduce levels of brake fluid, meaning you won’t have as much pressure within the system to stop effectively. And all of that mag chloride, ice, and water we see throughout the year? Yep, it can wreak havoc on the braking system too, causing corrosion, breaking or leaks within the system.

Why you should schedule a maintenance visit today

Are you convinced wheel alignment and brake inspection are important? Here are even more reasons why you should pay attention to wheel alignment and schedule your check up today.

If your wheels aren’t aligned right, it can impact your tires. A wheel that’s not aligned correctly will point tires slightly off track. And if tires aren’t connecting with the road the way they were designed, it can wear them down quicker than their useful life.

Uneven wheels will decrease fuel efficiency. A car is designed to perfectly connect with the road. If anything disrupts that, it will reduce the way it moves down the road.

Driving a misaligned car can create more damage. If any object isn’t in perfect condition, it can cause uneven wear, and impact other parts or components.

Small problems become bigger problems when not well cared for. Brake pads are the most commonly replaced items on the braking system. But if the pads don’t wear properly, and aren’t replaced as they wear down, they can further impact other parts of the braking system.

A brake inspection is designed to evaluate the entire braking system. While you might be able to assess the condition of your brake pads, it’s more challenging to determine if the rotors are damaged, or if your vehicle is low on brake fluid.

While you might not have driven as much as normal this year, leaving your car set for periods of time can cause problems you might not usually see

Before you take that road trip, or head up in the mountains for a weekend getaway, be sure to put wheel alignment and brake inspection on your to-do list. It’s a great way to ensure your vehicle is in great shape, and will keep you on the road no matter what the future entails.

Drum Brakes

August 17, 2020 by Denver Express Car Care

Brakes that work properly are essential to your safety as you drive and stop on our Denver streets. You want to carefully maintain your brakes. In vehicles equipped with drum brakes, the brake components are housed inside a drum that rotates with the wheel. When you step on the brake pedal, brake shoes push out against the inside of the drum, slowing the wheel.

Basically brake shoes just wear away with use from rubbing on the drum as you brake. When it’s time to replace brake shoes, it’s a straight-forward repair.

If you hear squealing or grinding when you’re braking, have your Denver service adviser check them out. They’ll have a technician perform a thorough brake inspection to see what needs to be done. He’ll check for signs of brake problems and go over other brake components to see that they’re working properly.

Your technician can tell you if it’s time to replace the brake shoes or if there are other issues with your brakes that should be addressed. Some people often ignore the warning signs and keep driving long after the brake shoes are completely worn out. When that happens, metal brake components will grind against the drum, damaging it enough that it has to be resurfaced or replaced.

When you push your brake pedal, the wheel cylinder is activated and it pushes the shoes against the drum to slow the vehicle down. This cylinder, and various springs within the brake, can wear out, which affects your ability to stop. The worn components should and can be replaced.

The new brake shoes we put on your vehicle will restore your brakes to manufacturers’ specifications. Or we can install upgraded parts to increase your stopping power and reduce brake noise and brake dust. We have several options to meet your braking requirements and your budget.

Taking care of your brakes keeps them working safely – and can prevent premature brake repairs down the road.

What Happens If You Don’t Change Your Car’s Motor Oil

August 14, 2020 by Denver Express Car Care

One of the very basic items to keep your vehicle running is motor oil. Outside of gasoline, it’s the number one thing you’ll change out on a routine basis.

But as you buy another can, or drive into your local service station for a motor oil change, have you ever wondered what would happen if you skipped it altogether? What if you waited a few months? What if you didn’t follow the guidelines? How bad could it be?

Many of the guidelines state that a car’s motor oil should be changed every 3,000 miles or 3 months, whichever comes first. If you check your owner’s manual, depending on the vehicle you drive, it may push that up to 5,000 or more.

What should you believe?

What motor oil does

Before we get into how frequently you should change it out, let’s talk for a moment about what it does.

Motor oil has one purpose: it’s designed to keep your car running smoothly. It’s designed to lubricate the engine and help carry heat away from the engine compartment. As the motor oil circulates throughout the system, it continuously lubricates the thousands of parts that come together and make your vehicle operational. And at the same time, it helps dissipate heat, carrying it away from where it can do the most harm.

That makes motor oil pretty important, right?

Think of motor oil as the lifeblood of your vehicle. If it doesn’t have a high quality supply running throughout the system, it can function at peak performance. And that means things will start to wear down over time.

Fresh, clean motor oil will keep your car in its best possible condition.

If it degrades, your car will start to wear down.

What really happens without fresh motor oil?

Glad you asked. It’s important to keep in mind that every car reacts in its own unique way. Your car won’t suddenly wear out without new motor oil at 3,001 miles. It’s more of a gradual process.

As motor oil works and moves throughout the system, it picks up all kinds of dirt and debris. If it’s working well, it can push this debris away from the moving parts and into an oil filter. But if you don’t replace the filter (it’s part of a regular oil change), the filter will eventually become too clogged to do its job. That means whatever the motor oil pushes in, it bypasses it and leaves it within the system.

That’s when engine parts start to wear down. Instead of fresh, clean motor oil, dirty fluid is circulating throughout the system. And it might not be doing a very good job. It can be abrasive, causing parts to rub together in wrong ways. It might not keep each part properly lubricated.

Motor oil isn’t just oil. Instead, it’s a combination of oil and additives designed to keep your car running at its best. It has things like detergents, dispersants, rust-fighters and friction reducers all working together to provide your vehicle with what it needs to thrive. You know when you’re washing dishes and the soap bubbles eventually dissipate because of all the grime that makes its way into your sink? That happens to motor oil too. The additives can’t work the way they did when you first added motor oil to the system, not once the system is compromised.

So the oil gets thicker, dirtier, and loses the ability to do what it was designed to do – keep heat out of the engine compartment. Heat builds. Parts warp. Damage starts to occur. And your car might not drive quite the way it did before.

But you still might notice anything. You might continue driving.

This turns oil into sludge. The volume of dirt and grime becomes too much, and it can’t process it at all. It barely moves, loses most of its lubricating qualities, and brings no relief to your vehicle’s parts.

If you leave it this way for too long, the engine will seize, and stop working altogether.

A high quality motor oil change is something you’ll barely notice in your monthly budget. We guarantee you’ll feel the pain of replacing a seized engine. It can cause thousands of dollars to bring your car back into working condition.

What else happens along the way?

Now that you know what happens within the engine compartment itself, let’s talk about a few other things you should know.

Did you buy a new or used car with a warranty? The warranty is only good if you follow the rules. And if you read the fine print on the warranty itself, you’ll find that it states you have to service your vehicle according to a schedule. If you don’t service it according to factory guidelines, the warranty will be null and void. Yes, that means you should keep track of every motor oil change you do. For that matter, you should keep a record book of every maintenance item you do, just to be able to refer back and determine all that you’ve done to your vehicle over the years. It can also be something that gives you an edge when trying to sell it down the road.

And long before you face a seized engine, you’ll also find your vehicle shows poor engine performance. When detergents and lubricants aren’t working correctly, you’ll hear and feel your engine sputtering. It can materialize as poorer gas mileage too.

It’s time to change your motor oil today

There’s an adage: an ounce of prevention is worth a pound of cure. And while that’s true for every system in your vehicle, it definitely applies here.

If you want a car that continues to operate well throughout its life, giving you the longest lifespan possible, it’s important to keep it working well.

You can do that easily just by pulling into our service station on a regular basis. Three or four times a year, for most.

It’s not about the money you’ll spend on new motor oil. It’s about the money you’ll save on repair bills down the road.

What Shock Absorbers Do For Your Car

August 10, 2020 by Denver Express Car Care

We’ve all seen the movies where a car goes bouncing down the road. But in reality, if you start to feel your car bounce, you know you have a problem. It could be a sign your shock absorbers are worn out.

What is a shock absorber?

A shock absorber is an integral part of a car’s suspension system. The shock absorber was designed to absorb the compression and rebound of the springs. They are created to take away the bounce and spring motion produced as your car moves.

Shock absorbers keep your tires connected to the road, so you experience a smooth ride.

As your car moves, you hit a variety of things in the road – bumps, dips, even fast-acting swerves to avoid large items. Your car’s suspension system reacts to your controls, which in turn moves energy to the tires, so they continue to connect with the road and absorb this energy. Shock absorbers dampen the movement of the springs, turning kinetic energy into thermal energy (or heat energy.) Thermal heat is dissipated into hydraulic fluid.

Shock absorbers exist within a cylinder controlled by a piston that moves as the vehicle’s suspension system operates. Small amounts of fluid are released from the piston head, which helps slow down the suspension movement, further controlling the rebound of the springs. The faster the springs move, the more resistance a shock absorber provides.

That’s what shock absorbers do when they work correctly. Over time, they start to wear down.

How do you know if your shocks are bad on your car?

Most drivers rely on their senses to tell them when something is wrong with their cars. Paying attention can mean the difference between a minor repair and a major overhaul. When you hear, smell, or feel something that seems not quite right, it’s better to bring your vehicle in to a mechanic and have them check it out right away.

All of your vehicle’s systems offer various warning signs, including faulty shock absorbers. As you’re driving, you may notice any one of these items:

The vehicle bounce

Now that you know how shock absorbers work, it’s fairly easy to understand why your car would bounce when they no longer work well. Shock absorbers work together with the springs attached to your car’s suspension system. If the shock absorbers aren’t working the way they should, it allows more action from the springs. And that is going to cause you to feel more bounce from your car. If the shock absorbers aren’t there to alleviate the resistance, the energy will move into your tires, producing an uncomfortable ride.

A metallic sound

As a suspension system wears down, it produces a telltale sound of metal to metal contact. If shocks and bushings can no longer support the strut, the result will cause a knocking sound you’ll hear either from the front or rear wheels.

Diving or squatting as you start and stop

Shock absorbers help your vehicle stabilize as you pull away from stop signs and traffic lights, and control the movement as you brake and come to a stop. If the mechanics of the shock absorber can’t handle the weight of the vehicle during this action, you’ll find the front end diving down or the rear of the vehicle squatting during this process.

Body rolls

In a similar movement to diving and squatting, a body roll takes place as you bring your vehicle through turns. As the shocks start to go bad, you’ll feel your car leaning more into every turn you make. Over time, this can present safety issues, so it’s important to take action and correct the problem as soon as possible.

How long do shock absorbers last on a car?

Just like other parts of your car, finding an answer to how long shock absorbers last depends on a variety of things.

Most manufacturers will give you a ballpark number. You may see things like “10 year guarantee. ” That is subjective at best. A delivery van that puts on hundreds of miles a week will clearly need new shock absorbers long before a car that sits in the garage most days because the owner is retired.

Mileage or time frame is a starting point, but it also depends on how you drive.

It also depends on the roads you drive on regularly. Smooth highway miles are different than rural gravel roads. Lots of stops and starts can wear down the mechanics of the shock absorber long before a car that mostly drives on the highway.

Then there are also considerations around road conditions. Driving in the heat of the summer is different than driving on roads filled with mag-chloride, ice, snow, and salt. Chemicals can always play a part in how long various components will last.

Do shock absorbers need any maintenance?

All vehicles have four shock absorbers (or a strut/shock absorber combination) at each wheel. The good news is that your shock absorbers don’t require scheduled maintenance like other parts in your vehicle. This doesn’t mean they never need replacing.

Shock absorbers do fail over time. And replacing your shock absorbers is one of the more common replacements you’ll make keeping your vehicle safe and in good working condition.

But there’s another reason many people upgrade from factory-grade shock absorbers: ride quality. People often come in and state their luxury car is suddenly driving like a truck. That’s a sign you need new shock absorbers. Your ride will be smoother. It can also make a vehicle corner and brake like when it was new.

When a shock absorber goes bad, it’s not necessary to replace them all at one time. However, it’s usually recommended to replace them in pairs – both front or both rear. This is because new shocks will absorb more of the road bumps than the old. If you were to replace only one, there would be an unevenness from side to side. This could quickly cause other problems within your vehicle.

Are you ready for a smooth ride? If you’re tired of feeling every bump in the road, it might be time for new shock absorbers.

Why a Car Diagnostic Test Can Be Important To Your Wallet

August 7, 2020 by Denver Express Car Care

Every year, you schedule cleanings with your dentist, check-ups with your general physician.

Why? To ensure you stay in good health.

During your routine visit, a doctor can assess what’s going on inside by taking a few standardized tests. They poke and prod in the right places, looking for clues that will tell them something is wrong.

Your goal is to receive an a-okay, knowing you’ll be fine in the coming months. But if they find something small – just an inkling of a potential problem – they can explore further, knowing they’ve caught it early. And catching it early can be the difference between life and death.

A car diagnostic test works in a similar manner. It warns you of potential problems somewhere within your car, problems you might not see, or even detect. But they are there, waiting. They can increase quickly, requiring expensive repairs. Or worse, strand you at the least inconvenient time.

What is a car diagnostic test?

One of the greatest advancements in the auto industry was the addition of technology. As cars became more computerized, it allowed mechanics to connect with each system more effectively. Instead of guessing as to what causes a problem, mechanics can now pinpoint exactly where the problem lies, making it easier than ever to fix the problem and get you back on the road again in no time.

A car diagnostic test can either be performed at the dealer or at a reputable service station. Using specialized software, a trained auto mechanic can use the results from the car diagnostic test to pinpoint exactly where the problem lies. Thanks to built-it processors, microchips, and sensors, this computerized program will show where the problem lies. It makes it easier than ever to discover even the smallest problem within the major systems such as the engine, transmission, ignition cells, throttle, and more.

Does a car diagnostic test look at every part of the vehicle?

There is a misconception about just how accurate a diagnostic test can be.

When you receive the results from a blood test at your doctor’s office, it can tell the doctor something is wrong. But it’s up to the doctor to interpret the results, conduct further testing, and eventually get to the root of the problem.

Diagnostic testing works in a similar manner.

Through testing, problems can be revealed with a car’s engine, transmission, exhaust system, brakes, performance issues, problems with air flow, coolant, throttle issues, and more. If you have your “check engine” light come on the dashboard, for instance, it can be a warning of a small problem, such as a faulty gas cap, or it could mean something more serious, such as an engine misfiring.

The diagnostic test may provide certain clues that lead a mechanic to dig in a little further. But it’s up to his skill and knowledge levels to determine exactly what’s wrong with the car. The problem will only be fixed appropriately if the mechanic makes the right diagnosis. And that’s where it benefits you to choose your mechanic wisely.

Why should you schedule a car diagnostic test periodically?

If you’ve recently had your annual physical, you know the benefits of scheduling it once a year. In most cases, you’ll be in and out with no worries. You’ll receive a “clean bill of health,” and you’ll be on your way.

There’s a good feeling about that. You can put your fears aside if you’ve been feeling a little under the weather. You can talk with your doctor about any challenges you might have been facing throughout the year. And leave with more confidence, getting back to life.

Before car diagnostic tests, a car’s health was often left to chance. You drove the car hard until a problem presented itself. And by the time you noticed the problem, it usually turned into a major repair. It may have even left you stranded by the side of the road. That puts you at risk. It also signaled there must be a better way.

The diagnostic test helps keep you on the road trouble-free. It helps you feel more confident no matter if you’re driving on dark roads late at night, or traveling cross-country on the family road trip.

In addition to diagnosing potential problems within the systems of your car, it can also check the computer system for manufacturers’ notifications and other detailed messages about your car. It can reveal the history, and signal information about when is the best time to replace or repair.

Should I bring in my car for a diagnostic test today?

Creating a snapshot of your car’s health sounds beneficial, doesn’t it? Maybe you’re wondering when you should schedule a diagnostic test for your vehicle. You don’t have to wait for a light to pop up on your dashboard to signal it’s time for a test. This is where it pays to pay attention to how your vehicle sounds and feels.

If you notice an unusual sound, bring it in. If it just doesn’t drive the way it used to, a diagnostic test may reveal the reason.

Of course, it’s also good to schedule a “check up” at least once per year.

Are you heading out of town on the epic family road trip? A diagnostic test can help you do so with peace of mind.

Or maybe you choose to have a diagnostic test performed right before we head into the winter months. It’s a great way to ensure your vehicle is performing at peak performance, before the temperatures fall below freezing.

An annual test will help reveal small problems that aren’t yet triggered by a light on your dashboard.

It can also be a useful tool if you’re in the market for a good used car. Before you sign on the dotted line and commit your hard-earned cash, schedule a diagnostic test and it will ensure you’ve found a great car, and not a lemon-in-waiting.

Is it time to schedule your car diagnostic test?

Keeping your vehicle in good working condition takes more than new tires and an occasional oil change. To stay on top of potential problems, a diagnostic test can alert you to trouble long before it appears, giving you trouble on your daily drive. Give us a call or stop by today, and we’ll let you know exactly how well your vehicle is performing.