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Brake Noises: What They Mean and How to Fix Them

January 18, 2023 by Denver Express Car Care

Do you remember the first time you slid behind the wheel of your current vehicle? It had a particular sound; it performed in a certain way. 

As the weeks and months roll by, you may start noticing things changing. There’s a new noise. Or you have to press down on the brake pedal more for the same performance level. 

These are warning signs designed to keep you safe. If you pay attention to these changes, you can bring your car in for an inspection and locate minor issues that are easy to repair. It prevents the problems from escalating into major repairs. 

How today’s modern car brake systems work

Modern car brake systems use a combination of friction, vacuum assistance, and electronic control to slow and stop a vehicle. The most common brake system in cars today is the disc brake system.

The disc brake system consists of a rotor attached to the wheel hub, and a caliper, which houses the brake pads. When the driver presses the brake pedal, brake fluid is sent under pressure through the brake lines to the caliper. The caliper then uses pistons to press the brake pads against the rotor, creating friction and slowing the wheel.

Brake Noises: What They Mean and How to Fix Them

Disc brakes are more efficient than drum brakes, commonly used in older cars. Disc brakes can dissipate heat better, which allows them to maintain their braking power even in heavy use. Additionally, disc brakes are less likely to suffer from brake fade, which is the loss of braking control due to overheating.

In addition to the friction created by the brake pads, many modern cars also feature a vacuum assist mechanism. This mechanism uses the vacuum created by the engine to provide additional force on the brake pedal, making it easier for the driver to brake.

They can also feature electronic control systems that help optimize braking performance. 

Anti-lock braking systems (ABS) use sensors to detect when a wheel is about to lock up, and modulate the brake pressure to prevent the wheel from locking.

Or they use Electronic Stability Control (ESC), which helps to improve a vehicle’s stability by detecting and reducing loss of traction. The system applies the brakes to individual wheels and can reduce engine power when the driver loses control of the vehicle.

The most common brake noises

Car brakes are an essential safety feature of any vehicle, and it is important to pay attention to any unusual noises or sensations when braking. Below are some common brake noises and what they may indicate, as well as potential solutions for each problem.

Squealing or screeching

If your brakes make a high-pitched squealing or screeching noise, it is likely that the brake pads are worn and need to be replaced. A small metal tab causes this noise, called a wear indicator, that rubs against the rotor when the pads are worn down. It is crucial to address this issue as soon as possible, as worn brake pads can reduce braking effectiveness and increase stopping distance.

Grinding

A grinding noise when braking signifies that the brake pads are worn down to the metal. The metal of the rotor is pressing into the metal of the caliper, causing damage to both components. This is a serious issue that should be addressed immediately, as driving on worn-out pads can cause expensive damage to the rotors and calipers and significantly decrease braking performance.

Clicking

A clicking noise when braking can be caused by several issues, such as worn-out brake pads, a loose brake caliper, or a problem with the brake pad guides. In most cases, this noise can be resolved by replacing worn brake pads or tightening loose components. However, if the clicking persists, it is best to have the vehicle inspected by a professional mechanic to determine the cause.

Rumbling

A rumbling noise when braking can be caused by warped rotors. This can happen if the rotors get too hot due to excessive braking or hard driving, causing the metal to warp and lose its smooth surface. Warped rotors can be resurfaced or replaced to fix the issue.

Sinking Pedal

If the brake pedal sinks to the floor when pressed, it may indicate a problem with the brake system’s vacuum booster or a leak in the brake lines. This issue can be dangerous, leading to a loss of braking power. It is important to have the vehicle inspected by a professional mechanic as soon as possible to determine the cause and find a solution.

In general, it is recommended to have your brakes regularly inspected by a professional mechanic to ensure that they are in good working condition. This will help to identify any issues before they become more serious and expensive to repair. Additionally, always pay attention to any unusual noises or sensations when braking, and have the vehicle inspected if you notice anything out of the ordinary.

Are your brakes making a funny noise?

It’s a sign you might have a problem that could put you and your passengers at risk. 

Brake noises can indicate a variety of problems, from worn brake pads to more serious issues, such as warped rotors. It is essential to pay attention to any unusual noises or sensations when braking, and to have the vehicle inspected by a professional mechanic to determine the cause and find a solution. Regular brake inspections can also help identify any issues before they become more serious and expensive to repair.

Filed Under: Brake Repair, Brake Service Tagged With: Brake Noises

How to Spot the Signs of Brake Wear and Tear Before It’s Too Late

January 7, 2023 by Denver Express Car Care

Some vehicle problems are easy to spot. If your tire is flat, you can see it. 

Some vehicle problems are more complex. If your brake pads are wearing down, you can’t see it just by walking up to your car. 

Manufacturers know this, and build in safety systems to alert you to potential issues. This is especially important with a vehicle’s brake system. It allows you to spot the signs of brake wear and tear before it puts you in danger. 

How a car’s brake system works

A car’s brake system is an essential safety feature that allows the driver to bring the vehicle to a stop or slow it down as needed. The brake system consists of several components, including the brake pedal, brake booster, master cylinder, brake lines, calipers, and rotors. Here’s a closer look at how each of these components works together to bring a car to a stop.

The brake pedal is the first point of contact for the driver when they want to activate the brake system. When the driver pushes down on the brake pedal, it activates the brake booster, which uses a vacuum to amplify the force applied by the driver. The brake booster increases the pressure applied to the master cylinder, a hydraulic pump that converts the mechanical energy the brake pedal uses into hydraulic pressure.

How to Spot the Signs of Brake Wear and Tear Before It's Too Late

The hydraulic pressure generated by the master cylinder is transmitted through the brake lines to the calipers located at each corner of the vehicle. The calipers house the brake pads, which are made of high-friction material. They press against the rotors (also known as brake discs) when the brakes are applied. The rotors are mounted to the wheels. They are responsible for dissipating the heat generated by the friction between the brake pads and the rotors.

When the brake pads make contact with the rotors, the rotors slow down, and the vehicle’s kinetic energy is converted into thermal energy (heat). The heat generated by the braking process is dissipated through the calipers and the rotors, which helps to prevent the brake system from overheating.

There are several types of brake systems used in modern vehicles, including hydraulic disc brakes, hydraulic drum brakes, and electric brakes. Each type of brake system has its own unique set of components, but they all work on the same basic principle of converting mechanical force into hydraulic pressure to apply the brakes.

How to spot the signs of brake wear and tear

As a driver, it is important to regularly check the condition of your brakes to ensure that your vehicle is safe to drive. Brake wear and tear is an everyday occurrence and can happen gradually over time, but it is essential to catch the signs early on to avoid more severe problems in the future. Here are some things to look out for to spot the signs of brake wear and tear:

Squealing or grinding noises: If you hear a high-pitched squealing noise while braking, it could be a sign that your brake pads are worn down and need to be replaced. Similarly, a grinding noise could indicate that your brake pads are completely worn out and the metal backing plate is now rubbing against the rotor. This can cause serious damage to your rotors, so it is important to address this issue as soon as possible.

Vibrations while braking: If you feel vibrations in the pedal or steering wheel while braking, it could be a sign that your brake rotors are warped. This can be caused by heat buildup from excessive braking or from the rotor being worn down unevenly. It is vital to have your rotors checked and possibly replaced to avoid further damage.

Soft or spongy brake pedal: If you press on the brake pedal and it feels soft or spongy, it could be a sign of a brake fluid leak. Brake fluid is essential for properly functioning brakes, so it is crucial to address this issue as soon as possible.

Pulling to one side while braking: If your car pulls to one side while braking, it could be a sign of a stuck caliper or an unevenly worn brake pad. This can cause your car to lose control while braking, so it is vital to have this issue addressed by a mechanic.

Brake warning light: If your brake warning light comes on, it could be an indication of a problem with your brakes. This could be anything from a low brake fluid level to a brake pad or rotor problem. It is essential to have this issue checked by a mechanic as soon as possible to avoid further damage to your brakes.

Is it time to have your brakes evaluated?

A car’s brake system is a complex but essential safety feature that allows the driver to bring the vehicle to a stop or slow it down as needed. The brake system uses a combination of mechanical and hydraulic components to apply the brakes and bring the vehicle to a halt, while also dissipating the heat generated by the braking process to prevent overheating.

If you detect any of the potential problems listed above, it’s time to have your brakes inspected. An inspection will allow a mechanic to evaluate each part of the system, discovering minor repairs that can be made before they escalate into bigger problems. 

Have you noticed trouble with your brakes? 

Filed Under: Brake Service Tagged With: Signs of Brake Wear and Tear

The Cost of Brake Repair: Is It Worth It to Fix Your Brakes or Replace Them?

January 4, 2023 by Denver Express Car Care

What’s that sound? Why are my brakes so touchy when I push down on the brake pedal? When your brakes have problems, you’ll know it by paying attention to a change in behavior.

That’s by design. Brakes are arguably one of the essential systems in today’s modern vehicles. Imagine coming off the mountain after a day of skiing without the ability to use your brakes. It would be a harrowing experience at best. 

Still, how do you know what to do? Who should you trust? You know the cost of brake repair is going to take a bite out of your wallet. But what’s better: fix your brakes or replace them?

How brakes work

The braking system in a car is an essential safety feature that allows the vehicle to slow down or stop when the driver presses the brake pedal. 

When the brake pedal is pressed, a lever called the brake pedal pushrod activates the master cylinder, a hydraulic pump. The master cylinder pressurizes the brake fluid stored in a reservoir. The pressurized brake fluid is then sent through a series of tubes and hoses to the brake calipers located at each wheel.

The Cost of Brake Repair: Is It Worth It to Fix Your Brakes or Replace Them?

Inside the brake caliper, there are one or more pistons that are activated by the pressurized brake fluid. The pistons push against the brake pads and squeeze against the brake rotor. This creates friction, which slows down the rotation of the wheels, bringing the car to a stop. 

The brake pads and rotors can get very hot during this process, so most cars are equipped with a cooling system to dissipate the heat.

Some cars also have a brake booster, a vacuum-assisted device that helps the driver apply the brakes more easily. The brake booster uses the vacuum created by the engine to multiply the force applied by the driver’s foot on the brake pedal.

The brake system converts the moving vehicle’s kinetic energy into heat energy through friction, slowing down the car and bringing it to a stop. It is a complex system that requires regular maintenance and inspection to ensure it functions correctly.

Signs your brake system has a problem

As a car owner, it is important to regularly check and maintain your vehicle to ensure its safety and longevity. One key component to check is your brakes, as they are essential to your car’s overall function and safety.

There are several signs that your car may be experiencing brake problems. Here are some things to look out for:

  • Squealing or grinding noises: If you hear squealing or grinding noises when you apply the brakes, this could be an indication that your brake pads are worn down and need to be replaced.
  • Soft or spongy brake pedal: If you press the brake pedal and it feels soft or spongy, this could be a sign that there is air in the brake lines or that the brake fluid is low.
  • Vibrations when braking: If you feel vibrations in the brake pedal or steering wheel when braking, this could be a sign of warped brake rotors.
  • Pulling to one side while braking: If your car pulls to one side while braking, this could be a sign of a stuck caliper or an uneven brake fluid distribution.
  • Brake warning light: If the brake warning light on your dashboard is illuminated, this is a sign of a problem with your brakes.

If you notice any of these issues, it is vital to have your brakes checked by a mechanic as soon as possible. Neglecting to do so could result in further damage to your brakes, which can be costly to repair.

In addition to watching for warning signs, it is also important to regularly check your brake fluid level and to have your brakes inspected and serviced according to the manufacturer’s recommended schedule. This will help ensure that your brakes are in good working order and can help prevent more serious problems from occurring.

If you do need to have your brakes repaired, be sure to use a reputable mechanic and only use high-quality brake parts. Using cheaper, inferior parts can result in further problems down the road.

Should you fix your brakes or replace them?

How do you know if you should fix or replace your brakes? You can start by assessing the current condition of your braking system. 

  • Age of the brakes: If your brakes are older and have been in use for a long time, they may be more prone to wear and tear and may need to be replaced.
  • Condition of the brakes: If your brakes are heavily worn or damaged, it may be more cost-effective to replace them rather than trying to fix them.
  • Cost of repair: If the cost of repairing your brakes is close to or more than the cost of replacing them, it may make more sense to replace the brakes.
  • Frequency of use: If you use your brakes frequently, such as in stop-and-go traffic or on hilly terrain, they may wear out more quickly and need to be replaced more often.
  • Driving habits: If you have a tendency to brake hard or ride your brakes, your brakes may wear out more quickly and need to be replaced more often.
  • Vehicle make and model: Some makes and models of vehicles may have brakes that are more prone to wear and tear, and may need to be replaced more frequently. Check your owner’s manual for more details.
  • Overall condition of the vehicle: If your vehicle is older and has high mileage, it may be more cost-effective to replace the brakes rather than trying to fix them.

Ultimately, the decision to fix or replace your brakes will depend on a variety of factors, including your own personal situation. It’s always a good idea to have a mechanic inspect your brakes regularly to ensure they are in good working condition, and to replace them if necessary to ensure the safety of your vehicle.

Building a relationship with a reputable mechanic will give you the assurance you need to rely on their opinions, and make the right decision for your situation. 

How can we help you today?

Filed Under: Brake Repair, Brake Service

Why Your Brake Pads May Be Wearing Unevenly

October 28, 2022 by Denver Express Car Care

What’s one of the most important systems on your vehicle? “Brakes” should be at the top of the list. 

Imagine driving through town without working brakes. Think about coming home from a day of skiing, tapping on the brake pedal, and nothing happens. Yep, the brake system is critical. 

Yet much of the brake system is hidden from view. You trust it’s there working and doing its job. You can see the tires, noticing if they’re flat or bald. You can tap the brake pedal and feel the pressure. But what about the rest of the system?

Brake pads are crucial for overall operation. Their uniform thickness controls how they operate. If your brakes aren’t performing as well as they should, it may stem from brake pads wearing unevenly. 

What are brake pads

The original braking system was nothing more than a block of wood. When a driver wanted to slow the car, they pushed a lever that moved a wooden block against the wheels. The friction was enough to slow and stop the car. 

However, that system quickly failed as cars became faster. Brakes got more sophisticated as our technology increased. Here’s how brake pads work.

Why Your Brake Pads May Be Wearing Unevenly

When you want to slow down, press the brake pedal down. This activates a cylinder that allows brake fluid to move through hoses and down to the calipers. The calipers engage your brake pads. This action causes the brake pads to apply pressure to the rotors located at each wheel. This friction is just what is needed to gain control over each wheel, slowing it down until it comes to a complete stop. Take your foot off the brake pedal, and the entire system sets up by reversing the process. 

It’s the brake pads that regulate slowing and stopping. Without brake pads, your car wouldn’t have the same level of control. If they don’t work correctly, you won’t have restraint.

Why brake pads wear unevenly 

Brake pads operate through friction. This friction occurs every time you press down on the brake pedal, causing the caliper to push the brake pad against the rotor. Rotors are fast-moving metal discs that push back against the brake pad to slow the vehicle. 

Brake pads are powerful components when you compare their size to the job they perform. No more than a few inches in width and length, their solid core is built tough to stand up to a lot of pressure. Each wheel has its own brake pad. It’s normal for front brake pads to wear at different rates than rear brake pads because the front brakes take more force from moving down the road. In theory, the brake pads work in pairs – each pair should wear in the same increments. If the left front brake pad wears differently than the right front brake pad, you have a problem.  

What causes brake pads to wear unevenly

There are several reasons brake pads wear down differently on each side. 

Guide pins – guide pins are metal pins that give the brake caliper flexibility to move back and forth with the wheels. These pins are in constant action, taking the abuse from the impact of the road. Over time, they can become dirty and corroded, which reduces their ability to move freely from side to side. When this happens, the caliper can stick in one position. It no longer is flush with the brake pad, meaning it creates small spaces between the two materials. Left unchecked and unrepaired, it impacts the functionality of the brake pad. 

Calipers – calipers push the brake pads against the rotors. If the caliper doesn’t engage properly, it can wear down the brake pads unevenly. This usually happens if the caliper doesn’t get enough pressure to the piston, or once engaged, it isn’t released in a timely manner. If the piston fires but won’t go back in, it’s a problem for the brake pads.

Rotors – rotors are small metal disks at the center of each wheel. They are more exposed than other parts, and are often subject to damage from debris on the road. Like brake pads, they are created with specific dimensions to fit snugly into the braking system. Debris can sometimes lodge between the brake pad, creating an uneven surface area. Over time, this causes deep grooves in the surface of the brake pads, and can eventually warp the rotors. 

Misalignment – sometimes, when new brake pads are installed, they are misaligned. This causes uneven wear right from the start. You should start noticing this after a few weeks or months of wear, depending on how much you drive.  

Brake lines – every time you press down on the brake pedal, brake fluid flows through the system to control the braking power. If these brake lines are clogged or damaged, they won’t provide the right brake fluid level. This means pressure will move from the caliper to the brake pad at different quantities, putting varying amounts of pressure onto the rotor as you slow and stop.  

It’s your brake pads – schedule an inspection

For most vehicles, car manufacturers recommend that you check and replace brake pads about every 50,000 miles. Of course, it depends on the make and model; your owner’s manual can provide more guidance. 

While it’s a good idea to keep mileage in mind for scheduling maintenance visits, you should also pay attention to what your car is telling you. If you notice any signs of braking problems, it’s important to get the system checked out. It’s the surest way to keep you safe. 

Brake pads have built-in sensors that alert you when they need replacing. However, with uneven brake wear, you might not reach that point before you start noticing problems. Take note of what happens when you brake, and convey that to your mechanic. They will be able to thoroughly inspect the system and make corrections, as needed. 

Visit us today for a full inspection to ensure your entire braking system works well. 

Filed Under: Brake Repair, Brake Service Tagged With: Brake Pads Wearing Unevenly

Don’t Ignore These Warning Signs of Brake Problems

September 7, 2022 by Denver Express Car Care

Imagine heading up into the mountains for a day of skiing. You drive deeper into the hills, closer to your destination on snow-packed roads. Suddenly, as you tap your brakes, it feels a bit squishy. Almost as if the brakes aren’t there. You tap again. Something’s not right. 

Will you be able to bring your car to a stop?

Will you trust your brakes on the ride home?  

That’s the last thing you want to have happen on your fun-filled day trip. Luckily, a little TLC and regular maintenance can prevent that from happening. 

Your brakes won’t fail without advanced warning. Your brakes will give you ample notice to bring your vehicle in for servicing long before it creates a problem. 

What should you watch for? 

Squealing or grinding noise

One of the most common indicators of brake problems starts when you apply pressure to the brake pedal. If you hear a high-pitched squeal, this could indicate wear on the brake pad. Brake pads are made with a steel indicator band to let you know they’re reaching end-of-life. This metal band connects with the rotor as you apply pressure, and the metal-on-metal creates a distinctive sound. If you keep driving once you notice this sound, the metal will wear into the rotor, causing additional problems that will be even more costly to fix. 

A grinding noise could indicate different things. Are your brakes fairly new? The grinding sound could be something like gravel stuck in the brake calipers. Or if the brake pads have worn down to the metal indicator bar, it could be the metal-on-metal sound. 

Don’t Ignore These Warning Signs of Brake Problems

Vibration when braking

As you drive, you grow accustomed to the way your car handles. If you notice a change in performance, pay attention to what is occurring. This can help a mechanic get to the heart of the problem. 

If your steering wheel or vehicle shakes or vibrates when you apply pressure to the brake pedal, it might be an indicator of a problem with the brake rotor. The brake rotor is a large disc that sits just inside the wheel. When you apply pressure to the brake pedal, the brake pad presses against the brake rotor to bring the car safely to a stop. 

Over time, the rotor surface can change. Material from the pad can cause divots and uneven wear marks. If the brake pads wear down to the metal bar, that can also cause irregular wear marks on the rotor. This unevenness affects the stopping power when you press down on the brake pedal. Brake servicing can fix uneven brake rotors, smoothing down the surface, providing it’s not too worn to fix. If the divots and worn marks are too severe, you’ll have to replace the brake rotors. 

Leaking fluid

Like other systems in your vehicle, the brake system uses brake fluid for proper performance. When you apply the brakes, the system uses brake fluid to create hydraulic pressure against the brake caliper. If the braking system is low on brake fluid, the pressure won’t be there to control your vehicle. 

If you experience a soft brake pedal, it’s time to bring your vehicle in for an inspection. They can check to ensure brake fluid isn’t leaking from the master cylinder or elsewhere in the brake system. 

You can also check your owner’s manual for guidelines on how often brake fluid should be checked and serviced. While it doesn’t need replacing like motor oil, fluid can be compromised over time. 

Spongy brake pedal

When we drive, almost every aspect becomes automatic, second nature, because the car behaves in a certain way. When you notice differences, it’s time to take action. 

A brake pedal provides certain resistance as you push down, and hydraulics kick into action. If the brakes feel softer as you press it further to the floor, it’s time for immediate service. It’s an indicator of moisture or air in the braking system, or a problem with the master cylinder. 

Car pulling to one side  

A vehicle contains four wheels, four brake pads, and four calipers. In a perfect world, all four would wear similarly. However, that’s rarely the case. If one caliper wears differently, or a brake hose goes bad, it can cause more pressure on one wheel. You’ll notice that in your car’s behavior. 

With more pressure on one side, the stopping power will be uneven. You’ll notice the car pulling to one side or the other. This will only get more pronounced if left unchecked. 

Burning smell 

A sharp burning smell after continually using your brakes is an indicator of overheating brakes. Pull over and give your brakes a chance to cool down. You can also further assess the situation. 

Check the parking brake. Is it fully released? 

If you see smoke coming from one of the wheel wells, it could be a sign of a stuck brake caliper. If it’s stuck in place, your vehicle is no longer safe to drive. You may have to tow it in for repair. 

Brake light turns on

One of the good things today’s cars offer is technological advancements that can alert you to potential problems. Your dashboard panel has a variety of lights and indicators to help you decide when to service your car. When you see the brake light illuminate, it’s time to bring your vehicle in for an inspection. 

In some cases, a brake light can be an indicator that your parking brake is on. Check to see if the parking brake is engaged. With that fully released, it’s time to schedule a maintenance visit if the brake light is still on. 

Do you have brake problems? 

Your brake system is one of your vehicle’s most important systems. Without brakes, you put yourself and those around you at risk. 

Think you may have brake problems? Make an appointment today. We’ll get you safely back on the road.   

Filed Under: Brake Service Tagged With: Brake Problems

A Guide To Regenerative Braking Systems

August 4, 2022 by Denver Express Car Care

Regenerative braking systems are included in most hybrid and electric cars. You’ll even find regenerative braking on some gas-powered vehicles. It converts the kinetic energy your car creates and turns it into electrical power. It’s more efficient than the process used by gas-powered vehicles. 

When you tap on the brake pedal, the kinetic energy of the car’s forward motion converts into heat as the brake pads connect with the rotors in a disc or drum. That heat dissipates into the air and away from the vehicle, instead of being used more efficiently. 

A regenerative braking system captures that heat and uses it for better efficiency. 

How a regenerative braking system works

Let’s dive a little deeper into how a regenerative braking system works. 

Traditional brakes on a gas or diesel-powered vehicle work through hydraulics. When you touch the brake pedal, hydraulic fluid moves brake calipers to connect brake pads with the rotors. This decreases the rotational spin of the wheel, gradually slowing it down until it comes to a stop. Drum brakes work a bit differently, but the overall principle is the same. 

With either drum or disc system, it involves transferring kinetic energy back into the environment. It takes the friction that causes heat within the braking system and moves it away from the vehicle. 

When you move to hybrid or electric motors, the braking system works a bit differently. As you press down on the brake pedal, the generator increases power, causing more resistance, slowing the vehicle until it stops. This process causes electrical current to flow back to the battery pack, where it continues to power the system. This is why regenerative braking works well in urban settings, because it continually recharges the system with stop-and-go traffic. Each stop at a traffic signal or in heavy traffic situations gives you an added boost when you accelerate again, which actually improves gas mileage and efficiency. 

A Guide To Regenerative Braking Systems

Regenerative braking extends battery life

Because kinetic energy builds as regenerative brakes are used, it helps keep the battery charged and ready to power the accessories used throughout the vehicle. For an electric vehicle, it can help preserve battery life, allowing your vehicle to travel further between power fill-ups. On all vehicles, it reduces wear and tear on the overall braking system, extending the life of the various brake parts. 

If you haven’t experienced regenerative brakes before, it takes a bit to get used to the feeling. The added friction can cause more slowing as you move your foot from the brake to the accelerator. Drivers often say it feels more like an on/off switch – now you have power, now you don’t. It makes it feel a bit jumpier during transitions, and takes a bit to get a feel for creating smooth transitions.  

In hybrids and newer systems, manufacturers are working to improve the feel of the transition. Some models only use one pedal for all movement. 

Brake checks and replacement are still required

One of the reasons people move towards newer technology is the idea of lowering the amount of maintenance required on the vehicle. 

Today’s electric technology requires little or no maintenance for the battery, motor, and other electronic parts. There are fewer fluids to check and refill, too, such as motor oil that needs replacing every 5,000 miles or so. 

With regenerative braking systems, the friction doesn’t wear on the components the way a traditional system does. It significantly reduces brake wear. 

That said, brakes are still a safety feature that needs to be checked from time to time. Reports show that brake rotors and pads can last 100,000 miles or more. 

Regenerative braking systems still use physical brakes. That means they mirror traditional brake construction, with rubber, fluids, and metal all being impacted over time. And that means they can suffer many problems found with conventional brakes, and still need maintenance over time. 

Electric vehicles might not use motor oil, but they still need brake fluid to function. And no matter how well cared for your vehicle is, brake fluid degrades over time. Especially if you’re not pumping the brakes at regular intervals. If you work from home more and your vehicle sits in the garage for days, it can impact brake’s health. 

Traditional brake maintenance revolved around worn out parts. Manufacturers had specific guidelines for replacing things like brake pads, rotors, and drums. They built safety features to warn you when things were wearing down to decrease the risks associated with brake failure. 

Because regenerative brakes utilize different energy for braking, the components might not wear down as fast. But it is important to pay attention to brake fluid replacement, changing it  based on mileage and timing. Even if you work from home and don’t take it on the road daily, fluid can still be compromised and degrade over time. 

That’s why many elective vehicles include frequent brake fluid check-ups and replacement, often once every two years.  

Another problem can be rust build-up, unless your car is specifically designed with carbon-ceramic brakes or other systems that are non-metallic. A little bit of surface rust won’t impact performance. But if it’s unchecked for too long, it can break through and cause more extensive problems. Detailing the brakes, especially after extended downtime, is a good idea to ensure they are working well and haven’t seized. 

Proper maintenance – the key to any vehicle’s long life

Whether you drive a gasoline, diesel, hybrid, or electric vehicle, ensuring a long life starts with proper maintenance. 

Instead of waiting for a problem to arise, regular inspections will allow the problem to be fixed early, meaning you’ll spend less time facing bigger issues down the road. 

Regenerative brakes are the future of the automotive industry. They work better, last longer, and provide your vehicle with added safety features. 

Yes, regenerative braking is more manageable in urban environments where they get a boost every time you use them. Just keep the process mild, without pouncing on the brakes to ensure the longest life possible. 

Do you have any experience with a regenerative braking system? 

Filed Under: Brake Service Tagged With: Regenerative Braking Systems

How To Extend The Life of Your Car’s Brakes

May 10, 2022 by Denver Express Car Care

Driving a car is a little bit of paying attention to the road in front of you, and a little bit of listening to how well your car is operating. 

If you listen, you can hear squeaks, chirps, and hums, warning you a potential problem is on the horizon. You can watch for smoke, feel vibrations, or even notice a burning smell coming from underneath the hood, all warning you something is wrong.

Your car’s braking system is one of the most vital systems on your vehicle. And even in the best circumstances, you’ll have to replace the brake pads every 30,000 to 70,000 miles or so. 

Is it possible to extend the life of your car’s brakes? Can you make your vehicle’s brakes last longer?

Understanding the brake system

Before we get into extending the life of your car’s brakes, it’s important to understand how they work. 

All modern vehicles on the road today use hydraulic brakes. They work by pressurizing and transferring brake fluid to each of the braking components located at each wheel. Whether disk or drum brakes, they use this pressurized fluid to apply the friction of the brake pad material against the rotors, creating the pressure needed for braking. 

How To Extend The Life of Your Car’s Brakes

Many cars on the road also use anti-lock brakes. These have wheel speed sensors, a computer control module, and an actuator to work together with the hydraulic brakes and prevent them from locking up during hard braking. They keep the car safer under extreme conditions. 

Hybrid vehicles also bring a regenerative braking system that works alongside hydraulic brakes, using electric components to initially slow the car. It relies on hydraulics to bring it safely to a stop. 

A parking brake provides added protection when hydraulic or regenerative braking systems need support. They apply more pressure on the rear braking assembly, perfect for keeping your car in place so it won’t roll. 

How can I make my brakes last longer?

Modern braking systems function and rely on several key parts. 

  • Master cylinder – used to push hydraulic fluid down into the brake lines
  • Brake rotor – spins while the vehicle moves, used in conjunction with the brake pad and caliper to cause friction to slow the car
  • Brake drum – the alternative to a brake rotor, used when cars use drum brakes instead of disc brakes
  • Brake pad – they rub against the spinning brake disc
  • Brake caliper – provide the clamping force that pushes the brake pad into the rotor
  • Brake shoe – used on drum brakes, the alternative to a brake pad
  • Brake booster – amplifies pressure from pushing down on brake pedal
  • Brake pedal – small pedal by the gas pedal
  • Brake lines – transfer brake fluid between the master cylinder and wheels

If you want to extend the life of your car’s brakes, knowing what each piece does helps you make better decisions while driving. Extending the life comes from care and maintenance of each piece of the braking system. 

Inspect your brakes regularly – in order to properly maintain the brake system, it’s important to have it thoroughly checked. At a minimum, schedule a yearly maintenance visit to allow a mechanic to inspect the system and make any necessary repairs. If you are road tripping and will be driving extensively, you might have the brake system checked first to ensure it’s working properly. You can also have the brake fluid levels checked to ensure the hydraulics work efficiently. 

Slow down – one of the hardest things for your braking system is to stop a fast-moving car. If you find yourself stomping on the brake pedal frequently, back away and give yourself more braking room. Extra heat on the brake pads adds friction, which wears down the material faster. It can also cause the rotors to warp as well. 

Change your driving habits – tailgating leads to a lot of quick braking. When you leave more space, it gives you more room to slow down. Without pouncing on the brakes, it saves the brake pads by reducing the amount of heat transferring within the system. 

Reduce the weight of your vehicle – more weight takes more stopping power. Instead of carrying a lot of extra equipment in your car, leave it behind and only haul what’s absolutely necessary. This will also help you improve your gas mileage too. 

Is there such a thing as lifetime brakes?

We’ve recently seen flyers that offer a lifetime guarantee on brake pads. Seems too good to be true, doesn’t it? That’s because it is. 

It’s just one more tactic repair companies use to try and gain your loyalty over time. 

Brake pads will wear out. It’s a fact. 

Different manufacturers may provide slightly different materials, which can provide you with a somewhat different lifespan. Yet overall, brake pads will last between 30,000 and 70,000 miles. It depends on type, composition, even the way you drive your vehicle. But eventually, your brake pads will wear out. 

Those lifetime brakes are a ploy to bring you back into the repair shop where you originally had them installed. With a “warranty” in hand, they’ll gladly give you “free” brake pads. Where you’ll pay is in the labor charges. And their labor charges are probably going to be one of the highest rates in the area. 

You’ll pay one way or another. 

This concept of “lifetime” brakes can be problematic for another reason: It gives the driver a false sense of hope. If you don’t anticipate your brake pads wearing down, you don’t look at minor telltale signs that your brakes are failing. 

The braking system contains more than brake pads. It’s a series of parts and components working together to keep your car under control and ultimately bring it to a stop. Those parts can wear down just as easily as brake pads. Even with wear left on your brake pads, these other parts can fail. 

And if you aren’t anticipating it, you might overlook the warning signs. Putting you in danger. 

Are your brakes operating well? 

Filed Under: Brake Repair, Brake Service Tagged With: Extend Car’s Brakes

What Happens When Brand New Brakes Squeak?

May 4, 2022 by Denver Express Car Care

When people replace old brake pads, it’s usually because they are old, worn down, and making a horrible noise. It’s hard to ignore that high-pitched squeak every time you press down on the brake pedal. 

So it can be disheartening when you drive away from the mechanics, step on the brake pedal, and discover your brakes are still making a noise. What is that squeak? And why is it making that sound? There’s a good reason for that. 

Why old brakes squeak

Before we dive into why your new brakes are squeaking, let’s build up your understanding of how the brake system works. 

Brakes are one of the most crucial systems on your vehicle. Without them, you could be put in dangerous, even life-threatening situations on a daily basis. 

What Happens When Brand New Brakes Squeak?

That’s why brake pads have their own internal warning system to alert you to a potential problem. As the brake pad wears down, metal is revealed within the brake pad to connect with the rotor as you apply pressure to the brakes. This metal-on-metal connection creates a squeak you can’t ignore. 

It’s for safety. 

So why would new brakes squeak?

When you replace the brake pads, the metal core is no longer visible, so the sound should disappear. 

But sometimes it doesn’t. What could be the problem?

Road debris

Even living right here in the Denver Metro area can provide you with many different driving experiences. Do you live in the Foothills, driving up and down steep hills each day? Do you live just outside of town in a rural area, where dirt roads are a normal part of your routine? Or maybe it’s highway all the way. But those potholes and road debris can sometimes be quite alarming. 

Even urban driving can have a minefield of potential problems on the roadway. Rocks, sticks, nuts and bolts, acorns, stones, and more can all harm your vehicle in many ways. As you drive away from the mechanics, a small piece of debris can make its way up and get stuck between the brake pad and the rotor. Do you hear the sound even without pressing down on the brake pedal? That’s most likely the case. 

Pay attention for the next few miles. It may work its way out of the system, or break down without causing more issues. If you still hear it, bring it in for a second look. 

Moisture

It might be the weather. As you drive a few dozen miles after installing new brakes, what road conditions have you faced? Ice? Snow? Rain? Wet pavement? All of that can form a thin layer of condensation between the brake pads and the brake rotor. This can lead to a thin layer of rust on the rotor, which can break off into tiny pieces and stick to the brake pad. This causes a squeaking noise as the two connect. 

In most cases, this noise will disappear after pressing down on the brake pedal a few times. If it doesn’t, bring it in and we’ll take a look. 

Break-in period

When brake pads are replaced, the brake rotors are removed, measured, machined, and possibly replaced. They need to have a smooth, flat surface to ensure good connection between the rotors and the brake pads. 

If this process doesn’t occur, the connection might not be a close fit. That can allow several things to occur, including glazing. 

Glazing is a hardening process that creates a smooth pad surface. This makes it difficult to create the necessary friction for stopping the vehicle. 

It can happen with repeated rapid braking where you stomp on the brakes. Or if you drive with your foot on the brake pedal, keeping the brake pad constantly connected with the brake rotor. That excess heat causes glazing. And you might hear it in the form of a squeak. 

Brake pad material

Not all brake pads are the same. There are several different brake pad materials, depending on which you have installed. 

Most cars on the road today use semi-metallic brake pads. They’re created from metal shavings of copper, steel, graphite, and brass, bonded with resin. They are best suited for vehicles used for everyday driving. They perform well, last a long time, and are economical. 

Organic brake pads are quieter than other materials. They are created from non-metallic compounds such as glass, rubber, and Kevlar. They are eco-friendly, which is why some drivers prefer them. Yet they aren’t as durable and will need replacing sooner. They are designed for lighter traffic situations. 

Ceramic brake pads are best suited for high-performance vehicles. They are made from ceramic fibers and other materials. They are very durable and perform well in many different situations. 

Different brake materials create different sounds on your vehicle. While you may be used to the way your vehicle performed before, it might take an adjustment to your new brake sounds. If you have any questions, give us a call. 

Quality

Where did you go to have your brake pads replaced? While we strive to deliver quality service every time, we can’t say the same for every mechanic. 

This is where reputation comes into play. When you get to know a mechanic, you build a relationship with the service they provide. You have a better understanding of the work they do. 

Going with a “good deal,” or even a friend down the road can lead to serious consequences. 

Did the technician you entrusted brake replacement to provide full-service? Did they install high-quality brake pads? Did they spend the extra time cleaning and lubricating the various brake system parts? 

Are your new brake pads squeaking? 

When you replace old brake pads, your new brake pads should work well. If you hear squeaking, squealing, or some other sound, it should disappear after a few miles. If not, bring it in for a second look. 

What brake questions can we answer for you?  

Filed Under: Brake Repair, Brake Service Tagged With: New Brakes Squeak

How Do I Know If My Brake Rotors Are Bad?

April 3, 2022 by Denver Express Car Care

A faulty brake system is never good. While many drivers are clued into listening for a high-pitched squealing noise, indicating their brake pads have come to the end of their lives, it’s more difficult to pinpoint brake rotor problems. When brake rotors are bad, they have several distinctive ways of telling you they are in need of replacement. 

What are brake rotors?

If you peer into your wheels, you’ll notice circular discs connected to each wheel. These are your brake rotors. Rotors are designed to turn motion into heat. They transfer kinetic energy into thermal energy to ensure safe braking. As you press down on the brake pedal, it sends a signal to the master cylinder, to the brake calipers, causing the brake pads to press together against the surface of the brake rotor. This friction resists the spinning wheel, which slows the rotation, eventually bringing the vehicle to a halt. 

Different types of brake rotors

Just like there are different types of vehicles, so are there several different types of brake rotors. This isn’t a one-size-fits-all component. Check with your owner’s manual to determine what’s right for your vehicle. 

Depending on what vehicle you drive, you’ll have one of four primary brake rotors on the market today. 

Blank & Smooth – these are the most common rotors for passenger vehicles. They are simple in design and affordable. However, as automotive practices change, some of these rotors may be created from recycled materials, meaning they don’t perform as well or last as long as other rotors. Typically they have a longer life because of a thicker material and internal fins, which allow them to cool brake pads more efficiently. You’ll notice the smooth, blank metal surface area if it uses this rotor. 

Drilled – drilled rotors have slots positioned around the exterior rotor surface instead of holes. These holes provide heat loss as well as allow dust and water to escape the rotor’s surface without clogging or blocking the entire braking system. Drilled rotors are more common in wet climates where they can aid drivers in keeping control over their vehicles on wet roads. They won’t last as long in high heat situations. 

How Do I Know If My Brake Rotors Are Bad?

Slotted – slotted rotors have slots positioned around the exterior of the rotors. They are most often used in heavy-duty trucks and SUVs, as these vehicles typically require more stopping power. They may also be used on other vehicles that routinely tow heavy loads. The slots draw in extra air between the rotors and the brake pads. This gives the rotors better cooling and heat dissipation. Like drilled rotors, they wear down faster and won’t last as long. 

Drilled and slotted – these rotors combine the best of both drilled and slotted rotors. They use both drilled holes and slots set in a spiral pattern to help with better heat dissipation and debris removal. You’ll find these on high-performance vehicles that require top-tier cooling and heat removal to achieve their performance. They are also at the top of the expense list. 

What are the signs of bad rotors?

When brake rotors wear down, they produce a number of signs to warn you of a potential problem. Acting fast may reduce the repair work, and will also prevent further damage to the braking system. 

A vibration in the steering wheel

This can’t be missed. As you press down on the brake pedal, a noticeable vibration occurs in the steering wheel. As you step on the brake, the brake pads press against the rotors, and the rotors gain heat quickly. This heat can cause the rotors to wear down unevenly, creating unevenness across the surface area. As the brake pad hits these wear marks, it causes the vibration to move up the braking system and into the steering wheel. 

A screeching sound

You can’t miss a screeching sound. It’s caused when the brake pads engage with a rotor that has developed grooves over time. As the surface area of the pads connects with the rotor, it creates a high-pitched sound that’s hard to ignore. You won’t have to ask twice if your brakes need a little TLC. A mechanic can pinpoint the problem, whether it stems from the brake pads, brake rotors, or somewhere else in the system. 

A blue color on the rotor surface

Excessive heat can quite literally change the color of the rotors. To check for blue spots on the rotor, kneel down and look beyond the wheels and wheel spokes. The rotor disc sets behind. If you notice a blue color anywhere on the surface, it’s worth a trip to the mechanics. If heat is compromising the brake rotor in any way, the damage could extend throughout the braking system. That puts you at risk every time you drive. 

Excessive wear

When a manufacturer designs every part on a vehicle, they set guidelines in place as to how it will perform under normal wear. That changes situation to situation. Your car may stay within the guidelines, or may move beyond depending on what you face each day. That’s why it’s a good idea to perform visual checks from time to time, as well as schedule regular maintenance visits to ensure everything is working well. 

How to avoid rotor breakdown

While rotors are designed for a lifetime of use, not all rotors last the life of a car. Especially with today’s technology where cars can move 250,000 miles or more over the life of the car. 

Just like brake pads, brake rotors are impacted just a little bit every time you take your vehicle out for a drive. The more miles you put on the vehicle, the greater chance of it wearing out over time. 

The exact lifespan depends on:

  • The quality of the rotor
  • How efficiently the rotor dissipates heat
  • The type of brake pad used
  • How you drive
  • Where you drive
  • Climate
  • Exposure to elements like rock salt and mag-chloride
  • How aggressively you brake

Looking for affordable brake repair service? We pride ourselves on being a family-operated repair business that can help you with all of your needs. Give us a call today.

Filed Under: Brake Repair, Brake Service Tagged With: Brake Rotors Are Bad

A Guide To Brake Calipers

March 28, 2022 by Denver Express Car Care

Car maintenance for most people can be divided into two categories: the parts you understand, and the parts you don’t.

As a driver, changing the motor oil, replacing tires, and fixing the brakes when they squeak is pretty commonplace. We understand the process, know the warning signs, and fit those duties into our routines. 

But what about digging deeper? What about maintaining your car’s brake calipers. 

What are brake calipers?

Glad you asked. 

What is a brake caliper?

The brake caliper is the part of a vehicle that pushes the brake pad to the brake rotor to effectively bring your car to a halt. It’s hydraulic, which uses fluid pressure to cause movement. 

Brake calipers resemble a clamp, and partially frame the brake rotor. The caliper houses the car’s brake pads and pistons, creating friction as it slows the vehicle down. They are the heart of the braking system in vehicles that use disc brakes. 

Overall, brake calipers have two functions:

1. They guide the brake pads. Brake calipers aren’t an on/off component. Instead, they’re used to guide your vehicle along based on traffic conditions. A little pressure slows you down. More pressure brings you to a stop. Brake calipers have a design feature that ensures the brake pads are always efficient and reliable for the overall braking process. 

2. They convert brake fluid into mechanical movement. This process uses hydraulic brake fluid for the braking action within your vehicle. Without the brake caliper, this process wouldn’t take place as effectively as it does, keeping you safe in the process.  

A Guide To Brake Calipers

How do brake calipers operate?

To understand how a brake caliper operates, you need to step back and look at the entire braking system. 

When you apply the brakes, a piston is pushed into motion, putting pressure on the brake fluid in the master cylinder. The brake fluid moves through hoses in the brake lines, from the master cylinder to the brake caliper. 

This fluid pressure creates movement in the caliper pistons, resulting in the brake pads pushing forward to make contact with the rotor. Different vehicles use different types of calipers, which each have varying amounts of pistons. This squeezing action causes friction against the moving rotor, causing it to slow. More pressure means more slowing action, reducing the speed or bringing it to a halt altogether. 

When you release pressure on the brake pedal, the situation reverses. Hydraulic fluid returns to the master cylinder, and the brake caliper pistons return to their resting position. It sits in waiting for the action to arise again. 

As you step on the brake pedal, fluid pressure is released to all four wheels simultaneously, in the same quantity. This results in balanced braking, and ensures your vehicle’s safety. 

What are the two types of brake calipers?

Brake calipers come in two categories: floating and fixed. They differ in design, mourning, and operation. 

Floating calipers are compact and lightweight. They lack power when compared to a fixed caliper. Instead of being mounted rigidly to the rotor, they slide freely on lubricated pins and bushings. Hydraulics moves the piston and squeezes the inboard brake pads against the brake disc when you step on the brake pedal. That gives the caliper free movement to move along the rotor on the backside, creating clamping action as necessary for control and movement. 

Fixed calipers have multiple pistons that make them more powerful than floating. They are more suitable when a lot of power is needed – racing cars or heavy vehicles that require a lot of stopping power. They have more braking force distribution, and produce a firmer, more powerful grip of the rotor as you press down on the pedal. 

Both have advantages and disadvantages. Floating calipers are the most commonly used by manufacturers today. Check with your owner’s manual to determine which is used in your vehicle. 

The signs your calipers need replacing

Whale brake pads will need replacing over the lifetime of a vehicle, brake calipers are designed to last the life of the car. That isn’t always the case. If they are damaged in any way, you’ll start to notice the way your car drives. 

Vehicle pulls to one side when driving or braking

If your car seems to pull to one side while driving, the caliper may be the problem. The pistons move in and out from the hydraulic pressure from the master cylinder. If there is debris or corrosion, it can cause these pistons to freeze up. This will result in the brake pad being unable to connect properly with the rotor. The car will pull towards the side of the damaged caliper when the pistons fail, or away from the damaged side if the brake pad fails to connect with the rotor. This can happen while driving or during braking. 

Squealing or rubbing noises

When parts don’t operate the way they should, they can create noise from the areas impacted. While brake pad damage makes a distinct noise every time you apply the brakes, calipers will produce noise whether the brakes are applied or not. When you notice a high-pitched squealing or a metallic rubbing noise while driving and it doesn’t go away, bring your vehicle in as soon as possible, as this can lead to complete brake failure. 

Uneven brake pad damage

Brake pads are designed to last 30,000 to 70,000 miles. Because brakes are precise in function, both sides of the car should wear down at approximately the same time. If one brake pad is distinctly different than the other when you replace them, it could be a sign there is something wrong with the brake caliper. 

Brake fluid leak

Anytime you notice brake fluid leaks around the car, it’s a sign of damage. Brake fluid is a light yellow color that may darken as it ages. If you touch it, it has an oily, slippery feel. If a caliper leaks, it may cause a slight oily spot on the ground inside the tire. Different things could cause this, so it’s important to inspect them as soon as possible. 

Filed Under: Brake Repair, Brake Service Tagged With: Brake Calipers

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