Denver Express Car Care

What Cold and Heat Does To Tires

April 7, 2022 by Denver Express Car Care

Living in Colorado can give you a wide array of environmental challenges, sometimes all in the same day. Statistics show temperatures have climbed as high as 115 degrees Fahrenheit and dipped as low as -61. We’ve had more than 75 inches of snow in a 24-hour period, and have had hailstones as large as 4.83 inches in diameter.

Stick around, and you’ll see it all.

But those kinds of variances can be hard on your tires. What do cold and heat do to tires? Should you be more careful in certain driving conditions? What puts your tires at risk?

Why tires are susceptible to changes in weather conditions

What are tires made of? Most people would say: rubber. That’s only partially correct.

Rubber is one of the main materials used in tire production, but there are as many as 200 different components combined to create new tires. Steel, nylon, silica, polyester, carbon, petroleum, as well as natural and synthetic rubber are all used to make tires stronger, better. It’s complex engineering to make tires do what they do best.

The outside tread creates traction and mileage. Inside the tire provides stability and strength. Together it helps your vehicle perform well out on the open road, as well as keep you safe no matter where you drive.

Tires are often created with certain performance requirements in mind. That’s why you’ll find a variety of types: snow, all-season, performance, and traction.

Depending on what tires are mounted to your vehicle will determine how susceptible they are to the driving conditions. Cold weather decreases tire pressure while hot weather increases.

As temperatures outside rise, the air in your tires increases in volume. As temperatures fall, the air volume in the tires decreases. That’s why your car’s computer module may indicate your tires are low in pressure after a plunge in temperatures outside. In general, tire pressure usually drops 1 to 2 psi for every 10 degrees the temperature drops. That’s also why air pressure will rise as your tires warm up as you drive.

Every tire manufacturer produces tires with a recommended psi. This psi tells you the optimal pressure for your tires and your car. However, this psi is set for cool tires. If you check your tire inflation at the filling station after your tires have warmed, it will be a different reading from when they were cool. It’s best to check your tires at home, if possible, before your tires have a chance to warm up.

Summer driving

As the temperatures continue to climb in summertime, your tires increase in volume and may overinflate. Most technology systems are wired to tell you when your tires are underinflated, but not when they are overinflated. This is why it’s important to test your tires manually periodically, especially with record-breaking heat or if you’re driving more than usual.

This can be especially true if you take long trips, or are carrying heavy loads. This is why tires blow on occasion.

Coupled with improper inflation is weakened tread. Tire tread is measured in 1/32 of an inch. If you have uneven wear patterns in the tread of more than 2/32 of an inch, it’s time to replace your tires. You can also do the penny test. Place a penny in a shallow groove on a tire with Lincoln’s head facing down. Can you see the top of his head? That means the tire tread is too shallow, and your tires are considered worn. The tire tread is 2/32 of an inch or less, and it’s time to replace your tires.

Winter driving

In winter, the opposite is true. Your tires may become underinflated in cold weather, and the tire pressure may drop accordingly. Unlike in summer months, air pressure readings will be accurate. Your vehicle’s computer system will be more likely to pick up on proper inflation of your tires.

That doesn’t mean you shouldn’t still check it manually on your own from time to time. Don’t forget your spare.

You should also pay attention to driving conditions, and perform a manual check if problems arise. Snow and ice wreak havoc on our roads. Potholes, hitting curbs, icy terrain – it can all wear your tires down. Be conscious of any potential problems that may impact your tires, and have them checked before you continue driving.

Heat and cold impact tires. Don’t drive if you suspect a problem.

Tires are designed for a multitude of purposes:

They support and cushion the weight of a vehicle
They absorb the shocks occurring as you drive on a road
They provide traction in different driving conditions
They add torque and braking force as they connect to the pavement
They allow you to easily keep control of the vehicle as you change and move the direction in which you travel

Without high-quality tires, you’ll be putting you and those around you at risk.

You should never drive on bad tires. It’s something you should check on a regular basis to ensure they are in good shape.

However, your tires wear and performance can change quickly in different situations.

If tires lack tread, you can pick up on it with visual checks. But if they are over or underinflated, it may be more difficult to notice as you drive.

Awareness is key in keeping your vehicle safe and under control.

If tires are weakened or lack tread, they are more vulnerable to the dangers of the road. Punctures and blowouts can happen more frequently, putting you and your passengers at risk.

Don’t wait to change your tires, replace them if damaged, or even have them checked if you suspect a problem. The sooner you react, the better your chance of fixing the problem, and possibly adding more life to your tires. Proper inflation can add many more miles of life to your tires.

How can we help you maintain your vehicle?

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.

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.

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.

How To Make Your Car More Efficient With Gas Prices Rising

March 24, 2022 by Denver Express Car Care

Remember when gas was under two dollars a gallon? Prices plummeted two years ago as the world came to a halt. And ever since, they’ve been rising steadily upward. Will they hit four dollars? Five? Only time will tell.

You feel it every time you pull into a gas station. Depending on the car you drive, you may have even reached a pump limit of $100. Now what? How do you make your car more efficient with gas prices continually rising? Or will you have to cut back in other areas of your life to meet this new reality?

Understanding fuel efficiency

Want a gallon of gas today? The national average is just over $4.24 a gallon. Compare that to $2.88 just a year ago, and you can easily see where your hard-earned money is going, especially if you’re back to driving to work every day.

It might lead you to wish for a more fuel efficient vehicle. What is fuel efficiency anyway?

Fuel efficiency measures effort to convert energy from the fuel into kinetic energy your car needs to move. It’s the measure of how far a vehicle can travel on one gallon of gas.

How To Make Your Car More Efficient With Gas Prices Rising

A lot of variables control how fuel efficient a car will be: tires, design of the car, weather conditions, driving conditions, just to name a few. While you may hear the terms fuel economy and fuel efficiency used interchangeably, they aren’t the same thing. Fuel efficiency is broader and includes how a vehicle uses the fuel. And that’s where you have some control.

While your car may have come with fuel efficiency guidelines, there are things you can do to save on gas. Fine-tuning your driving strategies can help you save at the pump, and make your car last longer too.

Car efficiency tips

Want to know how to make your car more efficient? It might be easier than you think. We have a few tips for you that don’t cost a lot and take little time to implement. Being aware of what impacts fuel efficiency is often enough to help you drive differently, depending on the conditions.

Clean out your car

Today’s vehicles are bigger than ever. We also weigh them down with many different things. Walk around your car and take a look at the extras. Do you have ski racks and cargo bins on top? Do you have bike racks tacked to the back? Do you carry workout items, sports equipment, and extra tools in the back? All of that adds unnecessary weight to your vehicle. Studies show you can lose 8 to 10 mpg with these extras in place. And at today’s gas prices, that can really add up. If you’re not using the extras, consider taking them off for your daily commute. You can always add them back when heading away for the weekend.

Improve your driving

Take a good look at the way you drive. Are you offensive or defensive in your daily driving patterns? Do you drive aggressively in traffic? Hard acceleration and braking can decrease your fuel efficiency by several miles per gallon. Instead, practice smooth driving. Leave space between you and the car in front of you. Leave early, so you have a few minutes to spare. Anticipate what’s coming up so you can smoothly transition as you drive. Not only will this help with fuel economy, but it will also help make your drive safer in the process.

Don’t speed

While there’s evidence that higher speed limits increase the risk of accidents, there’s also sufficient evidence that higher speeds also consume more gasoline. As you reach 45-50 mph, your car starts to lose efficiency. The faster you go, the more the numbers drop. Driving fast may get you there in a shorter period of time. But when fuel efficiency matters and you’re trying to conserve how much you pay at the pump, slowing down will help you conserve.

Check your tire pressure

When your tires are underinflated, it lowers your fuel economy. It also puts you at risk. Tire pressure controls how well connected your vehicle is to the road. If they aren’t inflated properly, they can’t do their job efficiently. While many of today’s vehicles have sensors telling you of a pending problem, it’s worth checking your tire pressure regularly to ensure they are properly inflated.

Buy quality gas

One of the easiest ways to make your car more efficient is to pay attention to where you purchase your gasoline. Top-tier gas stations are held to higher standards with additives. By filling up at a reputable station, you are ensured you’re getting good quality gas that will keep your engine working well. Also pay attention to what type of gasoline your vehicle needs to drive well. Stick with premium if the manufacturer suggests it, as it keeps your car running well. We also recommend keeping your tank at least half. This reduces the risk of running out, and protects you in case of inclement weather or gas shortages.

Perform regular maintenance

A well maintained vehicle will always perform better than one with potential problems. Dirty air filters, faulty spark plugs, or outdated oil changes all impact performance. Sticking with a regular maintenance schedule ensures your vehicle performs at its best ability, and helps catch potential problems before they escalate. That keeps you safer while driving on the road, and can save on repair bills over time.

How can you make your car more efficient now that gas prices are rising once again? It doesn’t take much. Just a few proactive tips can make a difference each time you pull in to fill up.

What happens if you don’t break in car brakes?

March 21, 2022 by Denver Express Car Care

Getting new brakes on your vehicle? Be sure to break them in the right way as you drive shortly after installation. It’s the only way to ensure performance over the life of the brakes.

Breaking in new brakes is also known as bedding-in the brake pads and rotors. If you don’t properly bed in brakes, you may experience problems with the braking system down the road, such as warped discs, uneven brake pad wear, or noise brakes every time you tap on the brake pedal.

Every time you install new brakes, the bedding-in process should be performed slowly for maximum effect. Most brake pads take 300 to 400 miles to fully break in and remove the transfer film from the rotors.

For most drivers, this simply means driving at your normal pace. But being aware of the process from the moment you drive out of the service station will ensure maximum results.

What is bedding-in?

If you’re getting new brake pads and rotors, take a look at the surface area of the old equipment. You’ll notice that old rotors have a shiny grayish-blue glaze on the surface. This is known as pad transfer. It comes from brake pads pushing up against the rotor many times over the life of the equipment. Brake pads create high friction to slow down and stop a vehicle. The material from the brake pad deposits onto the rotor over time, creating friction and helping your vehicle come to a stop. Pad transfer lays the foundation for a good braking system.

What happens if you don’t break in car brakes?

When you install new brake pads and rotors, this process hasn’t occurred. Brake pads and rotors are still two separate pieces of equipment. They need time to come together and function well.

Why you should break in car brakes

As you drive away from the service station for the first time after having new brake pads and rotors installed, the two start working together every time you slow down or come to a stop. The brake pad connects with the rotor, and starts leaving traces of pad transfer on the surface.

If you pounce on the brakes and perform this process too quickly, the pad can transfer quickly onto the rotor. This can cause an uneven surface area of pad transfer on the rotor. As you drive and this process continues to build, new pad material will build on this surface, creating an uneven texture on the rotor. In most cases, this will eventually be diagnosed as a “warped rotor”. The entire thing can be avoided by spending a little extra time after installation driving carefully to allow this process to occur.

Breaking in your brakes: the bed-in process

While many drivers bed-in new brakes through everyday driving, it’s important to understand the process if you wish to ensure proper breaking in of your car’s brakes. It requires Quickly heating and cooling the brakes in repeated movements to ensure proper pad transfer. It looks like this:

Find a safe place to drive – you’ll need space to reach up to 45 to 50 mph, and be able to quickly stop without impacting drivers around you. Ensure your safety and those around you first.

Warm-up – start with four normal stops. Bring your vehicle up to 30 mph or so, and bring your vehicle to a controlled stop.

Bed-in – perform eight more aggressive stops where you bring the vehicle up to around 45 mph, and bring it to a controlled stop. Be firm and aggressive with the braking, ensuring the wheels don’t lock up.

Cool-down – park your vehicle and allow it to completely cool down for at least an hour.

Then drive your vehicle as you normally would. Your braking system is ready to go.

Other maintenance items to do when installing new brakes

Now that you know how to break in new brakes, you should also know that to keep your braking system in good condition, there are a few other things a technician will do as they install new brakes.

Check the brake fluid

Brake fluid is a chemical solution used to keep the hydraulic brakes working correctly in all modern vehicles. It is designed to boost your foot’s power every time you step on the brake pedal, increasing the pressure of your car’s brakes. Without brake fluid, you would need a lot more force to slow your vehicle and bring it to a stop.

When you work on the brake system, it’s always a good idea to check the brake fluid and ensure it’s clear. When brake fluid is in good condition, it’s a lighter, clearer color with a thicker viscosity. The darker and thinner it becomes, the more compromised it may be. It will be replaced if necessary.

Brake system check

Ensure the entire braking system is working well. From the brake pedal to brake fluid, calipers, and brake pads, each piece of the braking system is important to ensure safety while driving. Things like caliper guide pins can become rusty over time. They can also tighten, needing lubricant to ensure proper movement once again. A reputable mechanic will ensure every piece in the braking system is operational and working well before driving away.

Slotted or drilled rotors

Improvements are made continually in the world of automotive. With technological advances come better ways to maintain your vehicle. Are you running with the best brake pads and rotors for your car and the way you drive?

Rotors come in slotted and drilled format. While slotted rotors don’t improve heat transfer, they can enhance brake output by removing dust and debris that can sometimes become stuck between the pads and rotors. This dust reduces friction force, which prevents the pads and rotors from flush contact. Drilled will give better with normal city driving, while slotted may be better with high performance vehicles.

Your brakes are one of the most important safety systems in your vehicle. Without brakes, you wouldn’t be able to slow down and stop, and keep your car under control.

For a well maintained vehicle, be sure your brakes are in good working condition. And when you get new brakes, break new brakes in properly for a full, long life.

How can we help you keep your car well maintained?

The Timing Belt Is About To Destroy Your Engine

March 18, 2022 by Denver Express Car Care

Your vehicle is filled with over 10,000 parts working congruently to keep you safe and get you wherever you’re going.

Some of those parts remain in our awareness. We know:

Tires need balancing and replacing
Oil needs changing
It takes gasoline for a car to operate
Brake pads give us the braking power to stop and control the car

Other parts are a little more vague.

The timing belt may be something you’ve heard of, but what does it do? How important is it in your vehicle’s operation?

And what happens if your timing belt wears out?

What is a timing belt?

If you look at a timing belt, it seems like a simple piece of equipment. It appears to be nothing more than a reinforced rubber band with teeth. Don’t let its looks fool you. It has a very important job in the operation of your vehicle.

The timing belt allows your vehicle’s engine to operate. It connects the crankshaft to the camshaft, and plays a vital role in allowing pistons and valves to open and close. The teeth located on the inner side of the belt synchronize the opening and closing of the engine’s valves. As the crankshaft turns, the timing belt moves into motion. It turns the camshaft, opens or closes each valve, and allows the pistons to move freely up and down.

The Timing Belt Is About To Destroy Your Engine

Timing belts need to be strong and sturdy to take on this much wear and tear each day. Yet like every other part of your vehicle, eventually, it wears out.

As a timing belt gets closer to end-of-life, you have one of two options.

1. Replace the timing belt before it breaks and causes damage.

2. Wait for the timing belt to break, causing potentially catastrophic damage.

If a timing belt breaks, the entire process grinds to a halt. The valves won’t close properly, which allows the pistons to no longer work as designed. If they shoot up and bang against a valve, it causes immediate damage to the engine. Just how much damage determines whether it’s a complete engine replacement.

Replacement is a much better solution. Manufacturers have suggested guidelines for how long your timing belt will last. In general, timing belts need replacing about every 70,000 to 100,000 miles – check your owner’s manual for specific recommendations. Replacement costs will vary between vehicles, but the price will be substantially less than if your timing belt breaks.

Warning signs your timing belt is going bad

Timing belts are strong and highly efficient. But like every part of your vehicle, they will eventually wear out.

Luckily, a timing belt provides indicators that it’s reaching end-of-life.

Engine misfires – the timing belt has a series of teeth that keep it moving well. As those teeth wear down and possibly disappear, the connections won’t operate smoothly. You may hear it as a repetitive clicking noise coming from inside the engine.

Smoke – as the belt wears down, it makes the entire operation less efficient. As gasoline moves into and around the system, it may not burn inside the chambers completely. This will impact the exhaust system. If you start the vehicle and you see smoke coming from the exhaust pipe, it’s a clear indicator of incorrect fuel consumption. While it could arise from several things, a mechanic should inspect the timing belt.

Trouble starting – the timing belt is the pulley system to keep the engine operational. If the timing belt isn’t doing its job, and isn’t rotating efficiently, you’ll notice how well your engine starts. If the belt slips on the camshaft, it causes the engine cylinders to open and close at the wrong times. It causes a desynchronization within the starting system.

Belt inspection – whether you open the hood regularly or bring it in for regular inspections, checking the timing belt can alert you to potential problems. As it ages, it starts to crack. You can see these cracks running through the timing belt. Another sign is small fragments may chip away and fall off. You can sometimes see these lying in the engine compartment.

Oil leak – another common sign is an oil leak near the timing belt cover. This cover is secured by nuts and bolts, which can wiggle loose over time. You may notice oil in or around the area.

Is there any warning before the timing belt breaks?

While you may notice any of the above as a timing belt wears out, the unfortunate part is a timing belt can break without any warning.

Timing belts are under a lot of stress as they go through day to day motion. It stretches and moves, rotating around the engine.

Think of a rubber band as you play with it repeatedly. If it’s older, and the rubber is more brittle, it may break with no warning at all.

Your timing belt works in a similar way. If it’s overstretched, overheats, or simply reaches its end-of-life, it will snap and break.

While you can watch for changes in your vehicle’s operation, you should also pay attention to manufacturer’s guidelines. Err on the edge of caution. If you’ve reached suggested time limits, it benefits you to replace your timing belt on your terms.

Your timing belt is a workhorse. It works flawlessly, day after day, until a problem begins. The end result can be catastrophic to your engine, and painful to your wallet.

If you notice any sign of a potential problem with your timing belt, or know it’s reaching the end of its life, schedule an inspection today.

It may take time and energy to fix it, and be a punch to your budget, but it is better than the alternative.

We’ll inspect your vehicle, give you your options, and help you make an informed decision.

Is your timing belt working?

Wheel Alignment or Tire Balancing, What Your Car Needs

March 14, 2022 by Denver Express Car Care

When you drive with a wheel problem, you’ll feel it immediately in the way your car moves. What’s causing it may be a bit more challenging to figure out.

Is it a problem with wheel alignment? Do your tires need balancing? Or is it something else?

What is wheel alignment

Wheel alignment is sometimes referred to as tire alignment or front-end alignment. It’s a service that adjusts the angle of your vehicle’s wheels to put them in proper position based on manufacturer’s recommendations. It’s an adjustment of the car’s suspension system, not the tires or wheels themselves.

Wheel alignment keeps your car from veering to the right or left as you drive. It can improve the handling of your vehicle, and makes your car safer to drive.

As a part of a wheel alignment service, a technician checks several things to ensure drivability. They check the toe, camber, and caster, all of which impact proper alignment. They’ll also look at tire tread to ensure the tires are connecting properly with the road.

Typically, manufacturers recommend having a wheel alignment every 10,000 miles. Check your owner’s manual for specific guidelines. You should also have a wheel alignment performed if you notice your:

Vehicle pulls to either the left or right while driving
Wheels don’t point straight ahead when stationary
Tires have noticeable tread wear
Car has been damaged in an accident or collision

What is tire balancing

Think of what your tires go through as you drive around each day. They take corners. The skid to a stop. They hit potholes and bumps. They swerve to miss what’s lying on the road. They navigate puddles, driving rain, slush, and snow. Eventually, all of that impacts your tires.

Wheel Alignment or Tire Balancing, What Your Car Needs

Yes, the tread on your tires will eventually wear away, requiring you to purchase new tires. But long before that, your tires may settle, no longer connecting properly with the road.

Tire balancing is also referred to frequently as wheel balancing. As tire tread wears down, it can cause the weight around the tire to change. This leads to an imbalance that can increase tread wear, lead to vibration, cause damage to the suspension system, or a number of other problems.

As a part of tire balancing, your tires and wheels are mounted onto a tire balancing machine. This calibrated balancer tests both moving and non-moving tire balance, and adjusts the tires to proper balance. It adds tire weights to achieve a properly balanced tire and wheel assembly.

Typically, tire balancing is performed along with tire rotations. Most manufacturers suggest both services take place every 5-6,000 miles, or 6 months, whichever comes first. You should also have your tires balanced if you notice:

Excessive vibration in the steering wheel as you drive
Floorboard vibration
Uneven tire wear
A flat tire

People think the only way for tires to move out of balance is to hit something in the road. It doesn’t take a sharp object or a large bump to alter how your vehicle drives. If you leave your vehicle sitting for long periods of time without moving it, the tires can develop flat spots that can cause an imbalance.

How do you know if you need an alignment or a balance?

Tire balancing and wheel alignment often occur at the same time, but the two shouldn’t be confused for the same thing. They are two separate services, each with its own benefits to keep your car running smoothly. And reducing your risk while driving down the road.

One of the biggest benefits of tire balancing is that it prevents premature tire tread wear. If you want to get the most mileage possible from your tires, scheduling routine tire balancing should be a part of your regular maintenance. Keeping your tires balance will help their performance as well as optimize your gas mileage.

Wheel alignment improves vehicle handling, fuel efficiency, and extends your tires’ life. Left untreated, you’ll have steering and suspension problems, potentially damaging components enough for repair work or even replacement. You can also shorten a tire’s life by thousands of miles.

If you notice a vibration in the steering wheel or on the floorboard, it’s a tire balance issue.

If your vehicle pulls to one side, your steering wheel sits crooked, or you have trouble driving straight without a tight grip on the steering wheel, it’s an alignment issue.

If you notice any problem with either balancing or alignment issues, don’t delay. Schedule an inspection as soon as possible to bring your vehicle back into good working condition.

Tire balancing doesn’t take very long; one to two hours and you’ll be back on the road. It depends on the issues your car has experienced. Hitting a pothole may cause more imbalance than working with installing new tires.

Wheel alignment is also a fairly quick service that generally takes one to two hours. The more wear and tear or damage to the suspension system will require more time for correction. That’s just one of the reasons it’s better to bring your vehicle in quickly; labor costs are kept to a minimum if the task is easier to fix.

Four tires … One vehicle

If you notice damage to one of your tires, why can’t you fix just the one? The easiest answer is: all four tires are attached to one vehicle. It takes four tires to control your vehicle on the open road, and carry you from point A to point B. If one tire is out of balance, there’s a good chance it’s impacting the others too.

To ensure your tires have a full life, and your car drives safely no matter where you go, it’s a good idea to have all four rotated and balanced regularly. It’s the easiest way to ensure your safety on the road.

Was The Winter Hard On Your Brakes? Cold Weather Brake Problems

March 10, 2022 by Denver Express Car Care

Cold weather and Colorado go hand in hand.

While we love skiing, the occasional blizzard, and days off from work and school, sometimes the cold weather can be a bit challenging. Heading out to a car that won’t start can be a bit frustrating. Finding out your brakes aren’t working can be dangerous at best.

Brakes are one of the most critical systems of today’s modern cars. Have you ever noticed changes in how your car brakes on the coldest days of the year? You’re not alone. We are often flooded with calls when the temperatures dip to zero and below.

Cold weather brake problems are different from issues you may experience at other times of the year. While cold weather doesn’t directly impact your brake system the same as a car battery, it can change how your car handles and moves. Being aware of the impact cold weather has on brakes will keep you safe no matter what the thermometer reads when you head out into the world.

Cold weather may impact the brake lines

What keeps your brakes in good working condition is the brake fluid. The freezing point of brake fluid is -40 degrees Fahrenheit, but the freezing point isn’t an all-or-nothing process. Instead, brake fluid starts to congeal the colder it gets. And as the brake fluid thickens, you’ll notice it in the way your car handles.

Was The Winter Hard On Your Brakes? Cold Weather Brake Problems

You might be thinking that the Front Range never sees -40 degrees Fahrenheit temperatures. Yet we do see the temperatures creep well below zero almost every winter season.

If your brake fluid is fresh and in top shape, it will continue to work fine as the temperatures drop. But if you don’t keep your brakes well maintained, that could be a problem.

Over time, brake fluid absorbs moisture from the air. Even though the braking system is mostly airtight, the brake fluid will still come in contact with air and moisture. And when there is moisture in the brake lines, even 32 degrees Fahrenheit can be a problem.

Studies show that up to one in five cars is driving around with water in the brake line. If you haven’t had your vehicle inspected, or asked about having your brake lines flushed in a while, it could present a problem on the next bitter cold day.

Cold weather could actually cause too much heat

Sounds counterintuitive, doesn’t it? How could cold weather cause too much heat?

When ice, snow, and all that comes with winter driving impacts your brake pads, you’ll start applying more pressure to the brake pedal every time you slow down or come to a stop. More pressure means more action in the braking system. And that can cause it to get very hot. Too much heat and it causes the entire braking system to overheat.

While your brake system is designed to withstand intense amounts of heat, everything has a breaking point. As the brake pads wear down, the responsiveness wanes, and you might start hearing funny squealing sounds.

Regular inspections will ensure that every point in your braking system is operating at maximum capacity. You can also change your driving patterns so you’re not riding the brakes. Give yourself plenty of room between you and the car in front of you, so you’re not tapping or slamming on the brakes.

Cold weather can impact the undercarriage

Colorado driving is a consistent challenge of navigating whatever Mother Nature has to dish out. When ice or snow is in the forecast, the city moves into action, adding things like mag-chloride to the streets, and sanding and adding de-icer to slippery spots to help keep you safe.

All of that takes its toll on your undercarriage.

It builds up in every nook and cranny it can find. All of those chemicals can accelerate rust and corrosion, damaging individual parts and components.

The most obvious signs come in the form of rust. You may see evidence if you perform a visual check. If you don’t clean the chemicals away shortly after they are applied, they can continue to build (and continue to damage) on every part underneath your vehicle. It can impact your braking ability, the way your emergency brake works, cause parts to rattle and fall off, and decrease the functionality of your vehicle.

On those 70 degree days that fall in between storms, it’s a good idea to head to your local car wash and give the undercarriage a good cleaning. Regular inspections are also a good way for allowing a mechanic to take a look underneath and ensure every part is still in good working condition.

Has winter weather impacted your brake system?

March is the snowiest month in Colorado. Here along the Front Range, snow is possible almost every month of the year. And when you take a ride into the mountains, road conditions can change quite rapidly.

One of the most important systems on your vehicle is the brakes. If it’s been a while since you’ve had them checked, now may be the time.

A harsh winter can lead to car problems you might not notice until they show up in a big way. Preventative maintenance is the easiest way to ensure you and your passengers stay safe.

The next time you’re out driving, pay attention to what your car is trying to tell you. Does it squeal, squeak, or bang? Do you sense your brakes take a little longer to engage? Do you notice a funny smell, or see potential problems as you walk around your car? Warning signs are there for a reason. They’re designed to give you a chance to bring your car in before bigger problems arise.

Whether you head to the hills for ski weekends, or simply drive to work every day, the Colorado winters can do a lot of damage to your vehicle.

Make today the day you fight back against everything this winter dished out. Cold weather can impact your brake system in harmful ways. An inspection will ensure it’s still driving well.

How Auto Mechanics Are Changing

March 7, 2022 by Denver Express Car Care

What car are you driving today? Does it run on gasoline? Is it a hybrid? Or electric?

Driving down the street shows just how far we’ve come in a short period of time. The hybrid car market is on track to grow at approximately 9 percent per year over the next few years. The electric car market has exceeded expectations, increasing 67 percent from 2019 to 2020.

Cars are changing. That also ensures that auto mechanics are changing too.

But what does that look like? Will you still be using mechanics in a similar fashion in the future?

Auto mechanics are changing. What does that mean for you?

Cars today

All you have to do is look in your own driveway or garage to see how cars are changing. You may have a gasoline-driven vehicle several years old, sitting next to a hybrid that gives you better gas mileage and is more efficient.

That’s representative of drivers all across America today.

Research shows more than 76 million vehicles on the road today are more than 16 years old. Thanks to technology, better mechanics, and economic considerations, cars over 12 years old are expected to grow as much as 12 percent per year. In the past decade, we’ve increased how long we own a car by 60 percent.

Hybrids and electric cars may be our future, but for now, we’re driving our cars longer than ever before.

Leasing or buying – a huge difference

Leasing is becoming a popular choice as cars increase in price. That means many drivers are out there swapping out their vehicles every few years.

That may seem like an easy way to move gasoline-based vehicles out and hybrid and electric vehicles in, but eventually, we’ll have a lot of older vehicles in all classes of cars.

Older cars run beyond their warranty. But they still have life left for the driver. That’s when auto mechanics will really change. Suddenly, we’ll have cars on the road – gasoline, hybrid, and electric – and they will all require maintenance to keep them running efficiently for the life of the vehicle.

Auto mechanics will be highly skilled as they move from vehicle to vehicle, keeping them in good operating condition. Not only will they be skilled with traditional mechanics, but they will also be skilled in electronics. That’s where independent shops will thrive as they continue to hone their skills to fix the problems associated with aging auto markets.

Auto parts

Have you faced this scenario? Your car isn’t operating correctly. It makes a noise, or you notice a smell. You bring it in for repair.

After a thorough diagnostics test, it’s determined one of the systems needs a new part. They order it … and you wait. Increasingly, you may have had to wait days for a part to be shipped in from somewhere else. It takes time for the part to be delivered, and more time for the part to be installed.

One of the advantages of having a standard car with an equally common problem is the abundance of parts. You can find them everywhere.

With so few hybrids and electric vehicles on the market, finding specific parts can be challenging at best.

As cars grow in popularity and we start honing in on simplifying how different systems work, even parts on hybrids and electric vehicles will become more commonplace. Especially for independent shops, they can be very specific in the services they provide, and be ready to make the necessary repairs quickly when you drive in.

That saves you time and money in the long run.

The future of auto repair

You only have to step into an auto mechanic shop today to see the changes that have taken place over the past few years. It’s more about diagnostics and technology than good old-fashioned “grease monkey” discovery.

The world is being automated right before our eyes. Why should we expect any difference within the automotive repair industry? Yes, some parts and services of the auto mechanics niche will disappear forever – hello, buggy whips. But new parts and services will take their place.

As we build more sophistication into every car we develop, that means an increase in artificial intelligence (AI), machine learning, and technology. All of this operates with sensors and other sophisticated equipment. When something goes wrong, it will be the auto mechanic of the future that steps in and makes the repair.

There will also be distinctions between individual and commercial classifications. As we step into autonomous transportation, there will be even more need for regular maintenance to ensure all vehicles on the road stay in good working condition. To ensure vehicles operate well to avoid error and reduce driver error, it will be imperative that every technical part on a vehicle is calibrated and working well.

That requires a skilled auto mechanic to ensure it’s fully operational.

Different time. Different vehicle. Different skills.

Auto mechanics are changing

But the need will never disappear.

Just like the Ford Model T required a specific type of auto mechanic, so to will the cars of tomorrow.

No matter how many technological advancements we make, or how many changes we make to the vehicles we drive, there will always be a need to maintain them, and keep them functioning at their best.

Every part, component, electrical connection, or mechanical device will wear down over time.

It’s an auto mechanics’ job to understand each system thoroughly, and be able to fix it when it needs to be updated.

The complexity of the systems are changing. An auto mechanic’s job will change too.

It won’t decrease the need for auto mechanics. It simply changes the services they provide.

What matters most is the relationship you develop, and the trust you place in ensuring they do a top-quality job for you.

Are you happy with the auto mechanic who services your vehicle?

How Long Can You Drive With Worn Brake Pads?

March 4, 2022 by Denver Express Car Care

Brake pads are one of the most critical pieces of equipment built into your car. If your brake pads aren’t working, you won’t be able to slow the car to a stop, or keep it under control as you drive.

Worn brake pads won’t handle the way new brake pads do. That’s why manufacturers build in warning signals to alert you to the fact that your brake pads are failing. There’s no mistaking the high pitched squeal brake pads make at the end-of-life when you press down on the brake pedal and the metal of the brake pad connects with the metal of the brake rotor.

You’ll notice it. And so will everyone else around you.

Brake pads last somewhere between 30,000 and 70,000 miles. Check with your owner’s manual for specifics.

But even with those general guidelines in place, brake pad life changes based on your driving patterns. There are many things you do that will ultimately determine how long your brake pads will last.

What effects brake pad wear

Driving habits

Your daily commute is the biggest indicator of how well your brake pads will handle over time. Are you an aggressive driver? Do you ride the brakes? Do you pounce on the brake pedal reacting to the drivers around you? Is your terrain flat, or do you drive over a variety of steep grades? Do you coast to a stop, or slam on the brakes? Brake pads will wear differently depending on your approach. Brake pads are all about safety – abrupt stops are sometimes necessary. But smoothing out your normal driving patterns will ensure a long life for your brake pads.

How Long Can You Drive With Worn Brake Pads?

Vehicle weight

Cars are different from trucks. A heavier vehicle will require more braking action to come to a complete stop. It also depends on how loaded your vehicle is. Many drivers across Colorado keep items from their active lifestyle inside their vehicles at all times. Bike racks. Cargo toppers. Sports equipment in the back. All of that requires more action to bring the car to a stop. Your brakes will also have more stress if you regularly pull campers or trailers, especially going up and down the mountain. The more stress your brake pads endure, the shorter lifespan they will have.

Driving environment

We have a variety of driving conditions here along the Front Range. Is your driving primarily urban, or do you regularly take dirt roads? Do you live in the city, or high up in the mountains? Steep elevations impact driving differently than living out on the plains. Your brakes will also endure changing weather conditions, sometimes all in the same day. Temperatures rising into the three digits. Ice and snow making hazardous driving conditions. All of that impacts how often you rely on your brakes for slowing and stopping.

Brake materials

Not all brake pads are alike. Brake pads are created from several different compounds to match different driving needs. Harder materials work better when performance is required. Softer materials work better at lower speeds, such as when you primarily drive in city conditions. Steel or metal brake pads are the most common materials, and work well in average driving conditions. Carbon-ceramic brakes last longer than their metal counterparts, but are more expensive and are primarily for better performance. Your vehicle’s manufacturer has recommendations for which brake pads are best for your driving conditions. Or talk with one of our technicians for more information.

What happens if you keep driving on worn brake pads?

Have you reached a point where you know you’ll have to replace your brake pads soon, but you’re trying to get the most life out of them? Several things can happen if you keep driving on worn brake pads.

Your car will need more space to slow and stop

Worn down brake pads won’t be as functional as new brake pads. That means your vehicle will require more surface area to slow and come to a stop. Response time can change rapidly as your brake pads wear, especially if they wear unevenly. If it feels like it takes more force from you stepping on the brake pedal, it’s a good indicator there are problems with your brake pads.

Your car vibrates as you brake

When brake pads work well, you’ll come to a smooth stop. As they wear down, it adds pressure to their ability to slow and stop. Especially if they wear unevenly, you’ll start to notice this in the stopping action. You’ll be able to feel the vibrations throughout the car.

Other parts can be impacted

It’s not just your brake pads that are at risk. The more worn they become, the more at-risk other parts on your vehicle are too. Brake pads are part of an intricate system where if one component is damaged, it can impact many others too. If brake pads wear past the wear mark, they can damage the brake rotors. The metal of the brake pad grinds into the rotors every time you push down on the brake pedal. The heat from this pressure squeezes against the rotor and can warp or crack it over time. If your car needs greater force to come to a stop, this will also impact your tires. Constant slamming on the brakes causes your tires to wear unevenly, wearing down before their estimated lifespan. All of this can add up to more component replacement, making your repair costs rise.

How long can you drive on worn brake pads?

Brake pads are designed to last anywhere from 30,000 to 70,000 miles. How many your car gets will be determined by your day to day driving conditions.

But once you detect your brake pads are no longer working as designed, what happens to the rest of your vehicle largely depends on your actions.

Can you drive on worn brake pads? Sure. For a while. But it will quickly materialize into many other problems, require more repair work, and potentially put you and those around you at risk.

Is it time for new brake pads for your vehicle?