Suspension

How Potholes Damage Your Car’s Wheel Alignment and Suspension

September 7, 2021 by Denver Express Car Care

For many Colorado drivers, they don’t think about the weather. They look at the roads based on how bad the drive will be.

Winter brings ice and snow. As it melts in the spring, potholes form all over the Front Range. Then we move into construction season, before it starts all over again.

Navigating any of them could be treacherous at best. Yet in many cases, potholes can cause the most damage. How do potholes damage wheel alignment and suspension? Read on.

What are potholes?

You can’t miss a pothole if you navigate the Colorado roads. You’ll find potholes in various sizes and shapes, yet no matter how large or small they are, they have the potential to damage your car.

They form through expansion and contraction of groundwater after the water has moved past the pavement and into the ground. When temperatures fall, the water freezes and expands. This works similarly to an ice cube tray you pop into your freezer. The water may be level as you fill up the tray, but once it freezes, the ice cube may reach beyond the limits of the tray, taking up more space. This happens underground too. Water seeps in wherever there’s room. Then when it has a chance to freeze, it takes up more space, expanding, bending, and cracking the pavement wherever it lies.

How Potholes Damage Your Car’s Wheel Alignment and Suspension

When the ice melts, the pavement contracts, leaving gaps and voids underneath the pavement. This allows more water to seep in, and the process starts all over again, expanding as it goes. This leaves weak spots underneath the pavement.

As cars and trucks pass over weak spots in the road, the pavement starts to weaken. This causes the material to shift and be displaced until a pothole forms.

When CDoT adds chemicals and salt to help keep Colorado roads clear, it lowers the temperature that water will freeze. This creates and expands the cycle that allows freezing and thawing to occur, which can cause more damage to the roads.

If you’ve ever hit a pothole and immediately thought your car may have been damaged, you may be right.

What damage can be caused by potholes?

When you hit a pothole full-on, you can feel it jarring your car. The bigger the pothole, the greater risk it has of damaging your vehicle. No matter what size it is, it can be a nightmare for your wheels and suspension.

In most cases, drivers hit potholes of various sizes every day. We tend to ignore the effects because it’s a common part of our drive. It may even seem like potholes don’t impact your car. Yet the more you hit them, the more potential damage may occur. It can alter the angles of your wheels, which impacts the way it connects with the road. That can result in a safety issue over time.

Damage often starts with the wheel. If tires make direct contact, it could cause rim damage or even lead to a blowout. But it often starts in more subtle ways.

Wheel alignment is essential for the integrity of your car. When your tires are aligned, rotation follows a straight course. That means it’s easy to steer the car, and you have little resistance to keep your car on course.

A misalignment means the drive moves off-center. It becomes increasingly difficult to keep it moving in a straight line. You may feel a vibration, or feel the car pull to one side.

Misaligned wheels put undue stress on the suspension system, will decrease your fuel economy, and may impact the lifespan of your tires too. Misalignment is easy to fix; stop by for an alignment and we can have you back on the road in no time.

The longer you drive a vehicle with misaligned wheels, the more issues you’ll find throughout your car.

Tires may start to show uneven wear. This can cause them to become ineffective and unsafe if not corrected.

A bad alignment can also put more stress on the vehicle’s suspension system. Think of your car’s suspension system as a series of components that help ensure your vehicle drives safely and smoothly. It’s a kind of carriage on which the cabin of your vehicle rests. It’s comfortable because of the various working parts designed to keep your car working well. It’s an insulator to protect the passengers on the inside.

A car’s suspension includes:

Springs to help control height and load of the suspension and interior cabin
Shocks to help absorb and dampen energy as it moves from the road, through the tires, and into your vehicle

The suspension also has an anti-sway bar to help with movement from your wheels to the steering wheel. This is what stabilizes your vehicle as it travels across the road.

How you hit potholes matters

When you come to a speed bump or dip in the road, it’s only natural to slow down to create less impact on your vehicle. Hitting a pothole doesn’t work in the same manner.

If you can’t steer around it, it’s better to hit it without applying the brakes. Your natural reaction might be to press down on the brake pedal to lessen the impact. That can actually cause more damage. When you apply the brakes, your car’s front end dips down as the suspension slows the front wheels. This compression causes the wheels not to absorb as much of the road impact. Which ultimately can lead to more serious damage throughout your vehicle.

Braking for potholes can be especially damaging to shocks and struts. Because shocks and struts affect alignment, if they are damaged, chances are your alignment is thrown off too.

Have potholes impacted your vehicle?

How many potholes have you hit this season? Lost count?

While your vehicle can navigate the roadway without issue in most cases, over time potholes can impact the performance of your vehicle.

Noticed it’s harder to control the car? Does it sway to the right or left? Do you feel a vibration as you drive? All could be problems with your wheel alignment. And if not corrected, it could do more damage to your suspension.

Stop by today, and we’ll have you back on the road safely in no time.

Are You Properly Towing Your Trailer? If Not, It Might Be Impacting Your Brakes and Suspension

August 25, 2021 by Denver Express Car Care

You don’t have to look any further than your local highway to know Coloradans love taking vacations. Trucks and SUVs are towing trailers, heading out into the high country to take advantage of all Colorado has to offer.

But did you know that towing a trailer has a huge impact on your brakes and suspension? If you aren’t aware of proper towing know-how, you could be putting a lot at risk. Improper towing could damage your car’s brakes, suspension, tires, transmission, and even impact your alignment. Your fun trip to the middle of nowhere could turn into one giant headache if you’re not adequately prepared.

Are you properly towing your trailer? Are your brakes and suspension at risk? Here are a few questions to keep in mind.

How much can your vehicle really tow?

You have a truck. You just bought a trailer. What could go wrong?

Quite a lot if the two aren’t properly paired. It’s important to understand how much your vehicle can tow before you purchase a trailer. If the trailer is too large for your vehicle, it can damage the suspension, transmission, even your engine.

Your vehicle comes with a towing capacity. The conventional towing capacity is regarded as how much it can pull with a frame-mounted hitch. Fifth wheel towing capacity would be mounted directly in the bed of your truck. Check with the owner’s manual to find out how much weight your vehicle can handle. This is the maximum weight it can pull without damaging the vehicle. Keep in mind that if you add other items to the trailer after you purchase it, it will add to the weight capacity. Make sure you stay within limits to ensure safety precautions.

Do you have the proper equipment?

Have you changed vehicles? Upgraded the trailer? Have a different combination than what you started with years before?

Not all equipment works in every situation. Towing requires four main pieces of equipment: a hitch, a receiver, a drawbar, and a hitch ball. Each of these parts work together to keep your vehicle and your trailer properly connected.

The hitch attaches directly to your vehicle and provides the connection between the vehicle and the trailer. A hitch class 1 tows up to 2,000 pounds, class 2 up to 3,500 pounds, class 3 up to 8,000 pounds, and class ⅘ up to 18,000 pounds. Hitches must be married up to the right vehicle to ensure proper towing capacity.

The receiver is the base for all other elements, and is appropriately sized depending on the different load sizes.

The drawbar is a tube that threads between the receiver and the hitch ball. You can buy an adjustable height to ensure you create a level plane no matter what load you’re towing.

The hitch ball comes in multiple sizes and is designed for varying amounts of weight.

These items are not interchangeable. You have to have the proper equipment as you move from towing your boat, to your trailer, to a mini-camper. Always ensure you have the proper equipment to remain safe at all times.

Have you thought about all of the details?

You have a truck or an SUV. You’ve purchased a new trailer. You’re about to head out on the open road. What could go wrong?

A lot if you’re not diligent about the details. Safety checks are mandatory to ensure your vehicle stays safe.

When you’re towing, you should ensure you have trailer lights to assure other drivers know what you’re doing. Do they operate correctly? Do they mimic your taillights and respond correctly to what you signal from your vehicle?

Have you used extra support chains to provide additional support connecting your vehicle to the trailer? This can prevent your trailer from careening into another vehicle if something should go wrong with the hitch.

Have you secured your load? Are all doors shut and properly locked? Is everything secured so it won’t fly out when you hit highway speeds?

Have you checked the laws for where you’re going? Different states have different rules. If you are spending time in a location, you may be required to match those laws with your own setup. Paying attention before you leave can prevent headaches down the road.

Check your tires regularly – all of them. If they aren’t properly inflated and in good working condition, they can become a danger out on the open road. This includes the trailer tires. A check up before you leave will ensure you don’t have tire troubles later. Look for worn spots, improper wheel alignment, or tires that simply aren’t up for the job you’re about to undertake.

Is it time to invest in additional performance options?

Chances are if you’re investing in a vehicle and trailer, this will be more than a one-time event. Think clearly about your long-term expectations, and find performance options that can help you stay safer.

For example, you can find a lot of additional parts that can make a difference in the way your vehicle moves and operates. How about a set of helper springs that help absorb the shock as your vehicle moves. They can assist with adding extra support to the springs and shocks, cushioning the action with every bump you hit in the road.

Or maybe an enhanced exhaust system to help release back pressure from the engine. This can help the engine breathe easier, which can be important especially if you’re heading into the Rocky Mountains.

No matter what you decide, the key to staying safe is to ensure they are all properly maintained for as long as they are in use.

Are you ready to go?

Before you head out on your next great adventure, ensure both your vehicle and trailer are in excellent shape.

Existing brake problems will only be exacerbated by towing a heavy load.

Worn tires or improper wheel alignment can spell disaster as you weave around curvy roads.

And the added weight can quickly impact your suspension, putting you more at risk of collision.

The best way to prevent all that is through regular maintenance. If you’ll be towing a trailer in the near future, let us know. We’ll check your vehicle out thoroughly to ensure it’s ready for the job.

And have fun on your next vacation!

What a Shaking Steering Wheel Means

July 14, 2021 by Denver Express Car Care

Shake, rattle, and roll. Throw in a catchy beat, and you have the makings of a great song.

But if you start feeling your steering wheel shaking while you drive, that can be the start of something you won’t be singing about for very long.

A shaking steering wheel is a symptom of a bigger problem. From bad tires to worn out brakes, there are a variety of issues that could be causing your steering wheel to shake. If you feel shaking, start noticing when it occurs. That can help lead to where the problem lies.

Tires out of balance

One of the most common reasons that might start your steering wheel shaking starts with your tires. They may be out of alignment or out of balance, which sends shaking through your vehicle and into your steering wheel.

If your tires are out of balance, you won’t notice this as you’re pulling out of the driveway, or moving at low speeds due to traffic. But as you pick up speed, the shaking will increase. That’s because tires out of balance start becoming a bigger problem the faster you drive. Slow down, and it goes away.

The first thing to check is a visual inspection of all four tires. Are they properly inflated? Is one of them flat? Your car is designed to operate with all four tires evenly connected to the road as you drive. If one of them has lower air pressure than the others, it can throw the balance of your car off.

If all tires are inflated correctly, the next thing to check is the tread on the tires. In order to keep the tread even on all four tires, it’s important to get them rotated periodically throughout the year. You can have this done at the same time as an oil change. This will ensure even wear for the life of your tires. It also keeps your car evenly connected to the road, meaning a smoother, safer drive for you.

If the problem persists, it’s time to look at other potential problems.

Worn brake pads

Have you noticed that your steering wheel shakes only after you press down on the brake pedal? It might be a sign of worn brake pads.

As you apply the brake pedal, a caliper applies pressure to the brake pad, which in turn connects with the rotor to slow you down. This slows you down until ultimately, you come to a stop. If anything happens during this process, you might feel a shake coming through the steering wheel.

If it’s your brake pads, it’s usually because they are old, work, or dirty and can no longer grip the rotor effectively to bring your vehicle to a stop. The brake pad connects unevenly, which causes the skipping movement which vibrates up into your steering wheel.

Calipers are designed to last. The problem usually stems from the brake pads, which have to be replaced on average about every 10,000 to 20,000 miles. It can also be from the brake rotors, which may need replacing every 70,000 or so miles. This depends on your driving conditions, how you drive, the weight of your vehicle, among other things.

Suspension

The suspension can also be a common occurrence for a shaking steering wheel. This is especially true with vehicles that aren’t properly maintained, and haven’t been closely evaluated by a mechanic over time. That’s because suspension problems rarely surface overnight. Instead, they develop slowly over time.

What can cause it? It might be a loose tie rod, or a ball joint that wiggles out of position. It might start with an odd, subtle noise, one you put off because you don’t notice changes right away in the way your car operates. This is also why it’s important to pay attention to any changes in the way your vehicle operates, and provide any noticeable differences to the mechanic in charge of working on your car. It can lead to pinpointing a problem that might not have surfaced without it.

Dry guide pins

Guide pins are part of the brake calipers. Over time, they can slow down from dirt and lack of lubrication. To keep them performing well, they need to be periodically cleaned and lubricated or they become dry and corroded. This means they don’t apply the correct pressure as you press down on the brake pedal, which can cause the brake pad to connect with the rotor at the wrong angle. And when that happens, it produces a vibrating steering wheel.

This is detailed work. A trusted mechanic will inspect the entire brake system, including the caliper housing to ensure it’s handling the lubricant correctly throughout the process. If a problem exists, correcting it early will ensure parts don’t wear down before their time.

Do you have a shaking steering wheel?

Once you notice even a slight shake, it’s hard to ignore it. Don’t. Even a slight shake from time to time is a warning sign of future problems.

Do a search online and you’ll find all kinds of horror stories about faulty equipment. In almost every case, horror stories are caused by people who ignored the warning signals.

Even a tiny shake is trying to alert you to a problem. Take note of the details and bring it in. We can properly diagnose it, find the origination point of the problem, and fix it before it has a chance to grow.

The best course of action will depend on the specific problem. But if you catch it early, you’ll reduce the chances of having an expensive problem that moves to different locations throughout your vehicle.

While every part of your vehicle is important in helping to keep you safe and secure, any indication of a problem with your braking system should be checked immediately. If a problem threatens the longevity or safety of your car, fix it early to ensure you’re back on the road safely again.

Just in time to turn up the radio and start singing your favorite tunes once again.

Growling that Grates

March 29, 2021 by Denver Express Car Care

A driver who uses his or her ears has a leg up on those who don’t. Noises, in addition to helping us to be aware of traffic, can also give us clues to potential problems in our vehicles. One noise to pay special attention to is growling.

Growling is a universally recognizable noise; you know it when you hear it. In a vehicle, it’s usually the sound of metal contacting metal, and not in a good way. So, what is your vehicle telling you if you hear growling when you are turning your steering wheel?

There are a few possibilities. One is the mechanical linkage that helps your steering wheel turn your wheels and tires. This system frequently has a hydraulic system that makes turning the steering wheel easier for you. This can be one source of growling sounds you might hear. An auto technician can check your power steering fluid to see if it’s at the correct level and still has a good consistency.

There are a few things that can go wrong with your power steering. If your fluid is low, that might be a sign of a leak in the pump, hose, or somewhere else in the system. It’s important to have your power steering working properly since losing the ability to turn precisely can sharply reduce the safety of your vehicle.

If that growling sound is coming from around the wheel area, it could be a suspension issue. That growling is giving you a warning that a component such as a constant velocity (CV) joint or a wheel hub may be on the verge of failing, so it’s a good idea to get it checked right away. Another reason you may be hearing growling when you turn your steering wheel is that your brakes are engaging when they shouldn’t.

Growling noises are trying to tell you something, and they can tell a trained technician a great deal. Inform your service adviser about the symptoms you’re hearing or seeing. Your Express Car Care service provider can put that growling to a an end. Your ears will thank you.

A Guide To Power Steering

March 10, 2021 by Denver Express Car Care

If you were to jump behind the wheel of a car built in the 1950s or before, you’d notice a lot of changes from our modern technology. While you could quickly adjust to seat comfort, noise levels, or even the lack of accessories, the one thing you might have problems with is the way the car drives.

Power steering may just be one of the single most effective systems adding into the modern day driving experience.

Without power steering, steering wheels were much larger in size. That was to give the driver leverage when trying to turn the wheels. As power steering was added, it became easier than ever to control the wheels with just slight variations of the steering wheel. It shrunk in size to add more comfort to the passenger cabin.

The power steering wheel

The original power steering wheel was added to enhance the feel for the driver. When you have more control, it reduces risk.

To create movement in the steering system, it’s achieved with a gear system. If you’ve ever heard the term “rack and pinion”, it’s referring to the steering system.

The rack is linear rather than round. It’s long and flat with prongs on one side. The rack is attached to the steering column by a series of tie rods.

The pinion is a circular gear that connects the steering shaft to the steering wheel. As you turn the steering wheel, the pinion rotates, moving the rack back and forth to control the vehicle to turn left or right.

The difference between hydraulic and electric power steering

While power steering changed everything, since it was first introduced in the 1950s, it has seen its share of changes.

The rack and pinion gear is also referred to as hydraulic, or HPS (high pressure steering.) These are considered steering assistance programs. If something happens to the engine, these steering assistance systems will give the driver control to steer even if fluid isn’t being supplied to the steering gear. Hydraulic steering uses the power supplied from the engine uses a belt attached to a pump, which continues to circulate fluid throughout the system.

Power flows because of the fluid. The power steering pump circulates this fluid under intense pressure, moving the pistons that control gear shifting, requiring less effort from the movement of the steering wheel. Pressure builds, the piston moves, and you have the ability to shift the car left or right with gentle motions. With technology, this process has sensors which can also take into consideration the vehicle’s speed, which ensures all movement is appropriate for the rate at which you are traveling.

Electric power steering, or EPS, is a bit simpler thanks to technology. It’s the vehicle’s computer system that is in charge of the steering process. The vehicle is equipped with a small electric motor either on the steering column or on the steering rack. Because the EPS doesn’t rely on power from the engine, it can increase fuel efficiency as well.

As a driver turns the steering wheel, the computer translates the movement and sends the request to the electric motor. This moves the rack and pinion back and forth. It’s built similarly to the hydraulic system in that it increases sensitivity at higher speeds. Because the only fluid in the system is to move the rack and pinion, it does not require fluid flushes as the hydraulic system does.

Common power steering problems

Like every part of your vehicle, the car is designed to give small warning signs as to when your power steering is failing. Watch for:

Power steering fluid leaks – power steering fluid is used to transfer pressure within the system, and change the direction of your wheels. If this fluid system has been compromised and is leaking fluid, the ability to build up enough pressure to move the wheels will be harder to do. You’ll notice it in the turning radius of your steering wheel – what used to be simpler grows harder to process. You can easily spot a leak because you’ll notice fluid dripping from the vehicle. There is often a grinding noise that is heard as you attempt to turn. If you ignore the problem to the point the system runs out of fuel, it can burn out the power steering pump.

Worn out hose – all parts are submitted to extreme conditions as you drive throughout the year. Often, one of the first to go are hoses as they crack, peel, or break. If the rubber hardens, it suffers more under intense conditions. This can be one of the first sources of a power steering fluid leak.

Slipped belt – occasionally, the drive belt will slip off the power steering pump. You’ll notice this by a squealing sound as you move your wheel to the left. This will prevent your car from changing direction as the pump won’t be able to do its job because of a total loss of fluid pressure.

Worn out pump – as a car ages, it causes the power steering pump to wear down. The seals can fail, the pump can break down, all leading to a loss of fluid pressure. The squealing noise will increase as you use it, and you’ll eventually lose the ability to steer at all.

How do you prevent problems with your power steering?

Preventative maintenance is your best course of action. Through a routine inspection, one of our mechanics can test each system and determine where weaknesses lie. You’ll learn which parts should be replaced, what signs to watch for, and be able to make decisions about the risk levels of your auto.

Want to keep your family safe every time you get in behind the wheel?

Schedule a maintenance inspection today.

Are Suspension Systems Different In Pickup Trucks Than In Cars?

February 18, 2021 by Denver Express Car Care

Since the very first horseless carriage was created, focus has been placed on creating a smooth ride. Imagine the first vehicle hitting a rock or a dip in the road – there wasn’t pavement back when the first vehicle was moving around.

Every bump moved from the wheels into the car, jostling the passengers around.

As more cars were built and sold, more time was spent on keeping the passengers safe, comfortable, and happy. Suspension systems are designed to provide each of these things and more.

What is a suspension system?

The suspension system includes all of the parts in the body of the car that allow it to connect with the road – wheels, tires, brakes – as well as the parts that help each of those systems operate – springs, shock absorbers, and other hardware. A suspension system is designed to support the weight of the vehicle, to absorb the shock that comes up into the vehicle with every bump and movement it makes, as well as provide a pivot point for the wheels. Its ultimate goal is to provide passengers with a smooth ride, while keeping you and the vehicle safe during the process.

A suspension system works to absorb the shock when you hit a bump, as well as to decrease the impact sent up through the axel and into the passenger section. The two are connected, yet through a variety of components, it’s designed to lessen the impact. How this occurs often determines the comfort level of the vehicle. This is where trucks and cars move apart.

Front end suspension systems

Most passenger cars and light trucks on the market today use a front suspension system. This includes a conventional coil spring, a Torsion Bar, and MacPherson Strut systems. You’ll find full-sized vehicles use a coil spring or the torsion bar systems frequently, while struts are more widely used on import vehicles and newer domestic vehicles.

No matter how it’s constructed, all suspension systems are designed for the same function – they support the vehicle to maintain proper wheel alignment, to connect with the road efficiently, and to absorb road shock as it moves up through the tires. How this is accomplished may change from system to system, but the final impact is always the same.

A coil spring system works by supporting the weight of the vehicle on coil springs and controlling impact by spring weight. The springs are mounted on either the upper or lower control arm, which also determines where the ball joint will be placed. The load-carrying ball joint is always on the same control arm with the spring.

With the torsion bar system, the vehicle’s weight is supported by the twisting of the bar. The torsion bar performs the same function from above as the coil spring in the vehicle.

With the MacPherson struts, the shock absorber, coil spring, and axis pivot have all been combined into one strut assembly. The weight of the vehicle is supported at the top of the spring plate, while the shock absorber dampens vibrations as the coil spring controls the ride.

Rear suspension systems

Most read wheel drive vehicles on the road today use a leaf spring and coil spring suspension.

They are designed with a solid axle that has some of the same characteristics as a solid axle front system. But the difference lies in movement – the rear wheels don’t pivot. Because more cars are coming with front wheel drive systems, you’ll also find more independent rear suspension systems. They offer improved performance and better control overall.

With a leaf spring system, the control arms are eliminated. A U-bolt connects the springs to the axle, which in turn connects the spring to the frame.

With a coil spring system, the coils sit on the axle housing on the underside of the vehicle. Movement is handled through control arms.

With an independent rear system, it’s used on a non-solid axle. This means that the vehicle will pivot independently based on suspension movement. This encourages better traction, since the wheels have flexibility in the angles they turn to as the wheels turn and move. This provides better acceleration and braking, and less resistance overall.

While independent systems provide better driving ability, it also adds more wearability to your vehicle. Because the wheels act independently of one another, each side must be aligned to the other, as well as to both front wheels. More parts, more servicing, which ultimately means more cost. But for increased safety, it’s worth the effort.

Car vs truck – what’s the difference?

Every car and truck is designed as the manufacturer chooses to produce it. Traditionally manufacturers used a leaf spring layout for the suspension system because they felt it was the safest for heavy loads. However, rules are always meant to be broken, and many have deviated and tried other things.

While most cars on the road today will use front and rear independent suspension systems for maximum control and comfort, many trucks also move to live axles placed at all four wheels.

It’s the shock absorbers’ job to control the axle’s motion as it takes in every bump in the road. For a truck, this task requires different degrees of control, which requires a heavier duty component the more weight you carry.

Trucks also have other considerations for the way they move. Many trucks need ground clearance and lift kits to ensure they navigate safely over rough roads. That means the suspension system must be longer to travel and up and down with every bump it takes in.

Off-road driving can also increase heat. The shock absorber must be able to dissipate that heat as it’s generated in each of the conditions you may put it through. From hauling to off-roading, the suspension system has to be ready for the job at hand.

When was the last time you had your suspension system thoroughly evaluated, to ensure your comfort and your safety? Suspension systems send out early warning signals about potential problems. Are you paying attention to what your vehicle is trying to tell you?

Ball Joint Boot Replacement

February 1, 2021 by Denver Express Car Care

There’s a little part on your vehicle you may not know about, but when it develops a problem, getting it fixed sooner rather than later can save you a lot of money in the long run. Have I got your attention now?

This part is called a ball joint boot. Ball joints are part of your suspension and allow your front wheels to move up and down and turn left and right. This boot covers and protects your ball joint.

Your suspension is, of course, exposed to nasty stuff getting kicked up from the road. Stuff like rocks, salt, water, dirt, and chunks of asphalt. If all that debris were constantly hitting your ball joints, they wouldn’t last very long. So someone had the bright idea to include protective “boots” that go over the ball joints. Great idea and they work…for a while. Just like every other part on our vehicles, they will need to be replaced eventually.

These boots not only protect against debris but they also protect against heat and friction. Because of this, they must be flexible. In addition to keeping contaminants out of your ball joints, they also keep lubricants in and allow the hot grease to expand. This is vital to make sure metal parts are moving smoothly.

Sometimes the ball joint boots get damaged after constant assault by road junk or temperature extremes. Other times they just get old. Rubber and other flexible materials can eventually just wear out (think of old rubber bands that break because they’re brittle from age). A regular suspension inspection will assess the condition of your ball joint boots. When your Express Car Care service adviser says there’s a problem with one of your ball joint boots, heed the warning. If they have a tear in them and aren’t replaced, lubricant can escape the ball joint and debris can get in and start creating a destructive mess.

Also keep in mind that if a ball joint is bad on one side, the other side might be on the verge of going too. Replacing both ball joints and ball joint boots at the same time saves time and money and just makes sense.

How Do You Maintain Your Car Suspension?

January 28, 2021 by Denver Express Car Care

When you climbed into your car for the very first time, what did you focus on?

The way the seats folded around you, preventing you from jolting and jostling with every bump?
How quiet the car was when you took it out on the highway?
How comfortable you were as you drove at different speeds?

You can thank your car’s suspension for that.

A car’s suspension system is responsible for two things:

Creating a smooth driving experience
Keeping the car under control

This may be an innate structure of every car on the road today, but it is also something that fades over time.

A suspension system is made up of several different components:

Wheels and tires

While not everyone considers tires a part of the suspension system, we’d say it would be hard for a car to handle well without tires in place. Tires protect the wheels as you move your car over every bump in the road. They protect jarring from rattling other pieces of the suspension system loose.

Springs

Every car on the road today has a spring mechanism to absorb large bumps. They are built to take extreme pressure, and to prevent failure in other suspension components.

Shock absorbers and struts

While springs absorb bumps, shock absorbers and struts dissipate the motion and give you a smoother riding experience.

Connections

Every component of the suspension system is placed together with kinks, bushing, bearings, and joints. These connections can be made from metal, plastic, or rubber, and wear down over time.

Steering

The steering system is created from a steering box and a steering column, and allows you to gain control over your vehicle in all sorts of conditions. The type of steering system can change depending on the car you drive, with hydraulic or electric power steering systems being at the top of the list.

That’s a lot of parts!

One rule of thumb that mechanics often use is that soft parts will wear faster than hard. Rubber joints and hoses will need replacing sooner than a metal rod.

Yet every vehicle on the road today experiences driving conditions differently.

Today you might slide on a sheet of ice. A few months from now, you may sit in a traffic jam in the scorching heat. You may take a dip into a pothole at 40 miles per hour. You may hit the speed bumps in your area multiple times each day.

All of that can wear your suspension differently over time.

To keep your car in good condition, it’s important to pay attention to the various systems that make your vehicle operate smoothly. A car suspension system needs maintaining in the following ways:

Check the air in your tires – this is one of the easiest maintenance items. Properly inflated tires help protect the entire suspension system from damage. If they are under-inflated, they hurt handling and performance, and may reduce gas efficiency in the long term. If the air becomes too low, you risk safety while you drive. If you don’t have a computerized system that warns you if your tire pressure falls outside the norm, check the pressure every thousand miles or so to ensure proper inflation.

Check tire tread – as you check tire pressure, check the tread too. An easy test is often referred to as the penny test. Place a penny in one of the grooves. If you can’t cover up a portion of Lincoln’s head, you don’t have enough tread for safety. This means you’re more at risk of your vehicle moving out of control, especially in rainy, snowy, and icy conditions.

Get your wheels aligned – proper alignment means you’ll have proper handling in all driving conditions. This keeps you safely on the road in all sorts of conditions. Check your owner’s manual for guidelines on how frequently you should have your wheels aligned, keeping in mind that the rougher your daily drive, the more often it should be a part of your maintenance routine.

Check power steering fluid – if you have a hydraulic steering system, a mechanic should check fluid levels at every oil change. Power steering fluid is usually changed about every 30,000 miles or so, or you can check with your vehicle’s manufacturer for specific guidance.

Inspect shock absorbers and struts – there are a variety of telltale signs your shocks and struts are failing. If you’ve noticed your car bouncing as you drive, or diving forward as you brake, it’s time for new shocks and/or struts. Different vehicles use different systems; not every car has both shocks and struts. Check with your car’s manufacturer for guidelines on how often they should be replaced.

Have you been in an accident – even minor bumps can shake your suspension system loose. If it was strong enough to put a dent in the body of your vehicle, it’s worth having one of our mechanics check your car over. An inspection will ensure that your car is working the way it should, and will get you where you’re going safely and securely.

Pay attention to where and how you drive – even here in the Denver Metro area, people live and work in different conditions. Do you routinely drive on dirt roads? Is there a pothole-ridden road right outside your door? Do you mostly put on highway mileage, or are stop signs and stop lights a big part of your routine?

Because every component of your vehicle’s suspension system is connected and operates in a unique way, there isn’t a proper sequence of where and when things will start to fail. If one part is damaged, it can quickly accelerate problems, and impact many other parts in the suspension system.

Whether you suspect damage, aren’t sure how long it’s been since your suspension system was inspected, or are planning a major road trip in the coming weeks, make today the day you schedule an inspection to ensure your vehicle is working as it should.

Steering and Suspension Repair – What You Need To Know

January 25, 2021 by Denver Express Car Care

Picture driving a luxury car. Your mind instantly thinks of words like “performance” and “efficiency.” How about “a smooth ride”? That’s important too, something an owner of a luxury vehicle demands.

Now picture yourself driving an old truck. You feel every turn, every bump in the road.

Big difference, right? Yet as drivers, we understand that different vehicles are designed for different needs. You’ll experience riding differently in an expensive sports car when compared to an old truck.

But we still have expectations of how the vehicle will perform. You wouldn’t want to take a corner and have your vehicle roll. You wouldn’t want to hit a bump in the road and feel like you’re bottoming out the car. No matter if you’re in the sports car or the old pickup.

Your steering and suspension system ensure balance, stability, and smoothness of the ride. These systems ensure a comfortable ride for you and your passengers. Steering and suspension are also responsible for keeping your wheels on the ground.

How the steering and suspension systems work

Before we get into the problems your car may face with steering and suspension, it’s important to understand how they work.

Vehicles are built with one of two steering systems: reciprocating ball steering and rack and pinion steering.

Reciprocating ball steering works through a series of links and arms to ensure all four wheels turn together and at the same time. It uses a steering box to control the movement of the steering wheel and steering column, and connects it to the functionality of the wheel movement.

Rack and pinion steering connects the steering wheel and steering column to a rack, which moves a piston as the wheels turn.

The suspension system uses a series of shocks that connect your car body to the wheels. The suspension system is in control of ensuring your wheels connect with the road and giving you a smooth ride while operating the vehicle. The suspension system utilizes a variety of components, including springs, shocks, and struts that absorb the impact of the road as you drive.

What are signs of steering problems?

While some components can wear down quickly with very little warning, your steering system isn’t one of them. It will almost always give you plenty of advanced warning that something is wrong.

Don’t ignore the warning signs. Ignoring them can result in a system fail, causing an accident that will impact you and the drivers around you. Steering problems include:

Difficulty when turning the wheel – especially if you have power steering, this is one of the first things you’ll notice. It may be a leak in the steering fluid, which helps give you easy control in how easily the wheel turns.

Vibration in the steering wheel – you’ll feel the wheel vibrate or pulse as you drive the car. It could be a steering wheel problem or an alignment issue, which is why it’s a good idea to let a trained mechanic inspect your vehicle.

Looseness in the steering wheel – this is usually caused by a worn steering rack that won’t hold its position.

Vehicle wanders or pulls to one side – worn equipment won’t keep your vehicle on track without extra help from you to hold it in place.

A screeching or grinding noise as you turn the steering wheel – if any noise continues every time you use your vehicle, it’s worth a trip into our service station to inspect it and find out where the problem lies.

What are signs of suspension problems?

Like other systems in your vehicle, the suspension system will have distinct issues as components start to wear and fail. The most common include:

Vehicle that pulls to one side – that’s a sign there are one or more issues with your suspension system. It could be uneven tire pressure, uneven tire wear, poor alignment, or a bad steering rack. This is often caused by driving on rough roads – have you hit speed bumps or potholes especially hard lately?

Feeling every bump in the road – when you start to notice a rough ride, it’s a clear indicator of a problem with your shocks and struts. It gives the distinct feeling of bouncing as you drive on the road. You can test by performing a bounce test – with your car parked, press down on the front end and release. If it bounces back and forth more than three times, the shocks and struts are worn.

One corner of your car sits low – a damaged spring may cause one corner of your car to sit lower than the others. You may also notice a clunking noise as you drive because of compromised equipment.

Braking or accelerating makes your car squat or nose dive – this is a very distinct feeling as you notice this extreme handling.

Difficulty in steering – if you find steering especially difficult, especially when first starting out and traveling slowly, it’s usually a sign of a suspension problem. You may also feel it slipping or difficult to hold onto the wheel. It can be a number of issues, including low power steering fluid or a leaking power steering rack.

Don’t ignore steering and suspension repair

One of the primary reasons why people put off regular maintenance is time and fear of the cost.

Time is always a factor – why pay attention to something that works well when you have a lot of little fires all around you? The best way to keep little fires at bay, avoiding them in some cases altogether, is to stay ahead of potential problems. Regular maintenance will ensure you fix items before they grow in size, often reducing the amount of money you have to invest in the repair.

That also impacts your final cost. Repairing a part limits your financial output. If you ignore a problem – a worn shock, for example – can quickly escalate and cause other major damage to your vehicle. That can increase your cost exponent, also increasing the likelihood of being without your vehicle for days rather than a few hours.

Stop by and visit with our staff today. You’ll love having a family operated service shop you can trust to give you the right information you need to make a well informed decision.

What You Need To Know About Wheel Balance and Front End Alignment

December 22, 2020 by Denver Express Car Care

Have you ever let go of the steering wheel and had your vehicle veer to the right or left? While a little pull might not impact safety immediately, the more off-balance your vehicle, the more risk you’ll be on the road.

Your wheels have to point in the same direction, roll straight forward when driving on a flat surface, and be evenly balanced all the way around for your car to run smoothly. If a problem arises with any one of these points, it impacts your driving, and can influence safety during the drive.

Yet if you’ve done a search online, heard a mechanic talk about the steering system, and felt like you’re not quite sure what your car needs, we want to explain a few of the terms of the industry, and help you understand the mechanics of your vehicle.

When talking about your steering system, there are several things that can impact your drive.

What is wheel balance?

Think about your tires for a moment. Tires are made up of a variety of materials, including natural rubber, synthetic rubber, plastic polymer, metal, and other compounds. They may be tough to the touch, but as they connect to the road, they move and change shape as they move along.

Even with today’s technology and all the manufacturing upgrades we’ve made over the years, it’s still impossible to find a perfectly formed tire that will continue to be balanced all the way around as it ages. There will always be a part of the tire that ways a bit more, is a little thicker than other areas, or has imperfections that cause it to fall out of balance.

When one side of a wheel is out of balance with the other, it vibrates. Wheel balance fixes this issue.

What is wheel alignment?

Wheel alignment has little to do with the actual wheels. Instead, wheel alignment is all about working with your car’s suspension system to control what direction and angle your wheels are moving in.

There are three different ways your wheels are aligned in relation to your car’s steering system:

The first is toe – it’s the angle of all four tires to one another. This is one of the most common repair issues, when your four wheels are no longer working in conjunction with one another. If you’ve ever noticed your car veers to the right or left, and refuses to drive in a straight line without extra effort, it’s most likely a toe misalignment.

The second is camber – this refers to the angle of a wheel if you were to look at it from the front of the vehicle. If you notice a wheel leaning to one side or the other, it’s most likely a misaligned camber.

The third is caster – this is the angle of the steering pivot as you view it from one of the vehicle’s sides. This is the most difficult to see. Take a look at the way each wheel sits inside the wheel well. If one is more forward or backward, and doesn’t sit in the middle, it might be a problem with the caster. This could lead to rubbing the wheel along the well, especially if you hit a large bump. It can damage the tire over time.

What is front end alignment?

While you might see some mechanics or auto websites talking about wheel alignment, you’ll also find many articles referring to front end alignment. Is there a difference? Do you have to work with both to keep your car running smoothly?

Wheel alignment often refers to the alignment of all four wheels. This is especially important if you drive a four-wheel drive vehicle. A front end alignment relates only to the front two wheels.

Yet no matter how you refer to it, the ending result is the same. A wheel alignment – or a front end alignment – all work towards the common goal of ensuring your wheels are working optimally in providing you a safe, smooth ride.

How do I know if the wheels are out of balance?

Your wheels go through a lot as you drive around the city. They hit bumps, dive through dips, take corners quickly, keep you safe on slick or snowy roads, and protect you from debris covering the roads.

Even brand new tires are susceptible to problems and errors. Coming out of the factory doesn’t necessarily guarantee perfection.

Yet with the use of technology, your tires are installed on your vehicle and regulated to fit your car’s requirements. The moment you drive away, things begin to happen. Cold, heat, water, ice, debris in the road, age – all of it begins to wear on each tire, causing slight variations in their performance. It can impact one tire at a time, or all four equally. One can be slightly overfilled while another is underfilled.

Just a half an ounce difference in the amount of pressure in a tire can cause a vibration in handling. And that begins to wear on your vehicle.

Rebalancing puts the wheels back into adjustment.

Tires are attached to a tire balancing machine. The wheel is spun while taking various vibrational measurements. If an imbalance is found, the mechanic will add weights or move the tire on the wheel to bring it back into balance.

Wheel balancing should be done anytime you notice a vibration in the steering wheel. It’s automatically performed every time you get your tires rotated, or you buy and install new tires. If you notice the weights have fallen off, or you notice uneven wear on a tire, it’s also wise to bring it in for wheel balancing.

How do I know if a front end alignment is necessary?

The more you know your vehicle, the more you’ll notice when changes occur, problems that might be causing wear and tear on various systems within your car. While wheel balancing and wheel alignment require different repairs, they are connected and sometimes start showing in a similar manner.

Have you noticed a vibration in your steering wheel? It’s time to bring your car in for an inspection. This is a prime symptom of a problem with your steering system.

Wheel alignment also shows up in performance and handling as you drive. Take a look at your steering wheel. Does it sit crooked as you drive in a straight line down the road? That is a symptom of an alignment problem.

You might also notice your car pulling to the right or left as you drive, needing even more of your attention to keep the vehicle in a straight line. That’s a sign you’re in need of a wheel alignment.

Front end alignments can also show up in the form of a strange noise. Do you hear abnormal sounds every time you move your steering wheel? Do the tires squeal? Don’t ignore unusual sounds. It could be a sign of a bigger problem.