
If your shocks and struts are bad, when you hit the gas pedal, the momentum of the vehicle will be transferred to the rear end, which will cause the front end to rise slightly into the air and resemble a boat on the water. 4 Signs You Need a Wheel Alignment The front end shakes.
Do I need an alignment after replacing shocks?
Because struts not only dampen spring oscillations but also serve as a structural part of the suspension, replacement almost always warrants an alignment check. In general, you’re less likely to need an alignment after replacing shocks. But there are exceptions to that generalization.
How do I know if my shocks and struts are bad?
Your car’s shocks and struts are designed to keep your car level when going around corners with minimal body roll. If you can feel your car wanting to roll to the outside when going around corners this can be another symptom of worn shocks and struts. 7.
Why do I need to replace my car’s Shocks?
Your car’s shock absorbers do more than contribute to a smooth ride. In fact, their primary purpose is to help you maintain control of your vehicle. Replacing worn or bad shocks can improve handling and control, reduce premature tire wear, and shorten stopping distance.
Can bad shocks or struts increase your stopping distance?
“Most drivers don’t realize that driving with bad shocks or struts can actually increase your stopping distances, especially on wet or slippery roads,” says Jill Trotta, Senior Director at RepairPal. But recognizing when it’s time to replace shocks or struts isn’t always easy.

Do shocks affect alignment?
Shocks act strictly as shock absorbers, and that's all they do. Their only goal is to give your car better handling. Struts have multiple roles. They are a structural part of the car's suspension system, and they also affect your car's alignment.
What are the symptoms of bad shocks?
The Warning Signs Of Worn Shocks And StrutsInstability at highway speeds. ... Vehicle “tips” to one side in turns. ... The front end dives more than expected during hard braking. ... Rear-end squat during acceleration. ... Tires bouncing excessively. ... Unusual tire wear. ... Leaking fluid on the exterior of shocks or struts.
What suspension parts affect alignment?
CAMBER, TOE, & CASTER Too much inward or outward tilt, also known as negative and positive camber, respectively, indicates improper alignment and will need to be adjusted. Worn bearings, ball joints, and other wheel-suspension parts may contribute to camber misalignment.
How can I tell if my shock absorbers need replacing?
How to Tell if Shock Absorbers Are Worn Out: Signs to Look ForShock Absorbers Leaking. This is one of the most common signs that your shocks are shot, and it's an easy one to spot. ... Uneven Tyres. ... Bad Vibrations. ... Stopping Takes Longer. ... Swerving, Nose Diving and Veering. ... Knocking Noise. ... Bumpy Rides.
What do worn out shocks sound like?
When going over various bumps, speed bumps, or potholes and your hear a knocking sound, it likely means you have worn shock absorbers. The noise may be the meal coil springs actually hitting your car's chassis.
What causes alignment to be off?
Things like hitting potholes, bumping curbs, or even minor accidents are all common causes of one or more of your wheels coming out of alignment. Second, normal wear and tear can all eventually cause your car to come out of alignment.
Why does my car keep losing alignment?
Here are the top three reasons your vehicle may fall out of alignment: Sudden disturbance or impact from hitting something such as a pothole, bumping into a curb, going too fast over a speed bump, or an accident. Suspension components, including poor shocks or struts, become worn or loose affecting alignment.
What causes wheel alignment issues?
Driving over potholes. Hitting curbs or road debris. Minor vehicle collisions. Bad shocks and struts or other suspension parts.
Can you drive a car with a bad shock?
Can I drive with a damaged shock absorber? Yes. Although it won't be a comfortable journey. A broken shock absorber will result in your car bouncing around, as well as excessive rolling, squatting and diving.
What happens when shock absorbers go bad?
A bad shock absorber will cause the tire to bounce, hitting the road at different points. This bouncing motion may cause the kind of uneven patches you see in cupping.
How much does it cost to replace shocks?
Shock Replacement Cost The average total cost to replace a pair of shocks will run about $250 to $580. An individual shock absorber will cost around $50 to $140 so parts alone will set you back between $100 and $280. A couple hours of labor to do the job is an additional $150 to $300.
Why do my shocks wear out?
You probably suspect that the cause for this must be unbalanced front tires, faulty steering, or a bad alignment . That’s most likely the case. But, if those parts are worn or faulty, they may have affected the condition of your shocks and struts and caused premature wear or damage which means they may be in need of replacement.
What are shocks and struts?
However, shocks and struts are some of the most overlooked maintenance items.
How to tell if struts need replacing?
Dented or damaged housing. Other visible signs that your shocks or struts might need to be replaced are dents or cracks in the shock or struts housing. You or your professional installer can also look for broken and worn mounts or worn bushings.
Why does my body roll lean?
Much like veering and crosswinds, excessive rocking body roll lean or sway is often caused by shocks or struts that have lost their damping ability over time.
How to tell if your car is rocking up and down?
If you notice that your vehicle is continuing to rock up and down after hitting a bump, or if the suspension routinely bottoms out when going over potholes, it’s a sign that you need to have your shocks or struts checked and replaced.
What to do if steering wheel vibration?
If you experience any steering wheel vibration be sure to have a qualified technician inspect your suspension to identify whether your shocks or struts, as well as other components, need to be replaced.
What happens when you drive over a bump?
When you drive over a bump or rough surface, it’s actually the springs in your car that absorb the impact, not the shock absorber. One of the main functions of shocks and struts is to keep the bouncing sprint under control and thus keeping your tires glued to the road when you hit a bump.
What happens when shocks are worn?
As your shocks become worn they won’t allow your tires to make consistent contact with the road surface which can lead to uneven tire wear or cupping on your tires. Your shocks keep your tires planted to the road.
Why do shocks and struts work?
Your car’s shocks and struts are designed to work in tandem with the other parts of your car’s suspension to provide you with a smooth ride as you drive your car around. When your shocks and struts become worn small bumps and potholes can upset the handling of your car and it may seem like your car’s suspension can no longer absorb impacts. ...
How Do Shock Absorbers Work?
Before going into the signs that your shock absorbers need to be replaced it’s important to understand how they work with your car’s suspension to absorb impacts to keep them from being sent into the car.
Why won't my car ride as well as it used to?
Your Car Doesn’t Ride As Well As It Used To. Over time as your shocks and struts wear out, your car won’t ride as well as it used to when it was brand new. Worn shocks and struts can cause your car to be upset by small bumps and undulations in the road surface and is usually a sign that your shocks are worn out.
How to tell if shock absorber needs replaced?
Shock Absorber Is Leaking. One of the more obvious ways to tell that your shocks need to be replaced is that they are leaking hydraulic fluid. Shock and struts have hydraulic fluid inside of them that allows them to absorb bumps in the road.
Why do shocks leak hydraulic fluid?
Over time the seals of the shocks can become worn out and crack allowing hydraulic fluid to leak out. If you visually inspect your shocks or struts and they are leaking hydraulic fluid this is a sign that they need to be replaced.
How to tell if struts are worn?
The easiest way to tell if your shocks and struts are worn is by going for a drive and monitoring how your car handles bumps and potholes. Your car should go over bumps in the road without upsetting how the car handles or making noises. Your shocks and struts should absorb most of the impact of potholes and not allow the impact to transmit ...
How to tell if shocks are worn?
When they are worn, certain patterns begin to manifest themselves in your tires' treads, including cupping and excessive outside or inside wear.
Why do shocks and struts help?
Shocks and struts help the vehicle "grip" the road when going around curves , especially on uneven pavement. When these parts are worn, your vehicle will likely sway heavily and be less reactive as you turn. You may even experience an increase in understeer or oversteer.
What to do if your car is bouncing?
Because it's a safety issue, it's best to rule out worn shocks and struts as soon as possible. Dualtone Muffler Brake has mechanics that are experienced with suspension-related issues.
What is the purpose of struts and shocks in a suspension?
Your other suspension components rely on your shocks and struts to control the movement of your wheels. When there is excessive movement, then there is more strain on other components such as control arms and ball joints, which increases the chance that they may break or become damaged.
Why does my car take longer to stop?
When your shocks and struts are worn, your car will take longer to stop than it would without worn components. Your anti-lock braking system could also be affected and work less efficiently. The risk increases even more on rough or bumpy roads because of the increased up and down movement of the wheels. Also, your vehicle is more likely to "nosedive" and put the front end of your car at risk for more wear and damage.
Why are suspensions important?
Your car's suspension system is critical to controlling your vehicle, and it often takes a beating. While some people think that suspension parts only control the ride comfort, some parts like shocks and struts play a critical role in safe driving. Unless you have a major accident, you may not even notice when they are worn out, but if you ignore them long enough, you could risk having a serious accident. Here are six ways shocks and struts affect your vehicle and how to tell if you need replacements.
What does it mean when a car feels like it's being pulled in a certain direction when going around?
You may even experience an increase in understeer or oversteer. This is when the vehicle feels like it's being pulled in a certain direction when going around a curve. While most vehicles have some understeer and oversteer, poor suspension components can increase it to a dangerous level.
What Happens If I Drive on Bad Shocks or Struts?
Driving on bad shocks or struts will only make them deteriorate faster, and it also has implications for other parts of your car. Here are five ways bad shocks and struts will affect your vehicle’s performance — and why the only place you should drive if your shocks and struts are going bad is to your mechanic repair and suspension tuning.
What Should I Do If My Shocks or Struts Are Going Bad?
Like tires, shocks and struts should be inspected during your vehicle’s regularly scheduled maintenance to make sure they’re working properly and aren’t showing signs of extreme wear. In most cases, they’ll need to be replaced every 50,000 miles or so.
How to tell if shocks are worn?
One of the signs that your shocks and struts might be starting to go is that it takes longer for your car to brake. (Of course, this can also indicate a problem with your brakes; either way, you need to get it checked out ASAP.) Struts help absorb the weight of the car as it comes to a stop, but when they start wearing down, the struts can’t do their job as well, and that means the brake pads and rotors have to carry some of that strain. In addition, if your steering wheel shakes when braking, that's another sign you should get your brakes and shocks and struts looked at.
Why does my car squeal?
All of the elements of your suspension system are affected when your shocks and struts start to go bad — and may cause you to ask yourself " why is my car squealing? " Control arms and ball joints are strained by the extra movement of the vehicle, which makes them vulnerable to breaking. The vibrations can wear down joints and bearings, which leads to them being replaced — or it could cause problems with other parts of your car. So, not only could this mean big repair bills down the road, but it also can make your vehicle unsafe.
How to tell if a tire is failing?
Your tires can actually provide some of the earliest signs of failing shocks and struts, since it will change the way they’re interacting with the road. You might see excessive wear either on the inside or outside of the tire, or there may be other signs of uneven wear, decreasing their useful life. While tire rotation extends the life of your ...
What is a strut in a car?
A strut has a coil spring mounted on the outside; a shock uses a spring but the spring is separate from it. Struts are more expensive to replace but they’re also critical for maintaining proper control of your vehicle.
How do shocks affect cars?
Shocks and struts have a direct effect on your safety as well as your car’s performance. With so many people on the road around you, having your car break down can be more than just an expensive nuisance; each year, hundreds of people are killed or injured after pulling their car over to the side of the road.
Why are my shocks worn?
Since a car's shocks are responsible for controlling the impact and vibration of a vehicle's springs and suspens ion, worn ones won't be able to soften the blows of the road.
How to test shocks?
So how can I test my shocks? Here's one way, but not the only way to do it. With your car parked, press down on the front end of the vehicle and release. If more than a couple bounces are required to calm the car, the shocks might be worn. You can repeat this test with the rear of the vehicle, too.
What to do if your Firestone shocks are bad?
If you notice one of these signs, spring into action for your own safety and start with a complete vehicle inspection at your nearest Firestone Complete Auto Care. During an inspection, technicians will check for any suspension-related issues, including damaged shocks or struts, broken mounts or bushings, and vehicle swaying or bouncing. After diagnosing the problem, they’ll advise you on next steps to get rid of any “C.U.R.S.E.D.” symptoms of bad shocks!
What does it mean when your car veers in side winds?
C - Car veering or sliding in side winds? Unless you’re driving through a tornado (which we don’t advise), this could mean you’re dealing with a shock absorber problem. Worn or leaking shocks can lead to unsteadiness on the road. You shouldn't have to “correct” your car, even in mild gusts.
Why do you need shock absorbers?
Your car’s shock absorbers do more than contribute to a smooth ride. In fact, their primary purpose is to help you maintain control of your vehicle. Replacing worn or bad shocks can improve handling and control, reduce premature tire wear, and shorten stopping distance. Learn how to determine if your shocks are in need of some help, and remember the symptoms of worn or failing shocks by asking yourself, "Is my car showing signs of being C.U.R.S.E.D.?"
Can shocks cause uneven tire wear?
U - Uneven wear appearing on your tires. Big red flag! When your shocks are worn, they can’t keep your tires firmly on the road, commonly resulting in cupping in your tires. To perform as the manufacturer intended, tires must maintain uniform contact with the road. However, worn shocks can contribute to premature and uneven tire wear, meaning you'll need to replace your tires much sooner. Additionally, uneven tires can increase your risk of hydroplaning and leave you more prone to a sudden flat.
What are shocks and struts?
Shocks and struts help stabilize your vehicle’s movements, enhancing control when you turn, brake, accelerate or encounter uneven road surfaces. Today’s vehicles use shocks, struts or a combination of the two.
What is the difference between a shock and a strut?
The basic difference is that a shock is an independent component, while the strut combines the shock and other features in a single structural unit. Both help to stabilize the vehicle and keep the tires in contact with the pavement. Without shocks, your vehicle would bounce down the road.
Why does my car tire make a clunking noise?
You may also hear a clunking noise. Unusual tire wear. Because the tire isn’t being held firmly to the road , the tread wears in a wavy manner instead of evenly. Leaking fluid on the exterior of shocks or struts. This is a sign that the seals have broken and the internal fluids essential to proper function are escaping.
How long do shocks last?
“With heavy use, you could be looking to replace them at 40,000 or 50,000 miles or sooner. Under normal conditions, 75,000 to 90,000 miles might be reasonable.”
How to tell if your car is bouncing?
You’ll notice the front end of your vehicle rising while the rear “squats” during hard acceleration . Tires bouncing excessively. After hitting a bump, you can feel a tire (or tires) reacting or “bouncing” for a time. You may also hear a clunking noise. Unusual tire wear.
What to replace on struts?
He recommends replacing other worn items associated with the struts, like bearing mounts, rubber bump stops and shock boots.
What does it mean when your car leans to the outside of the turn?
When taking a sharp turn or an off-ramp, your vehicle leans or “tips” to the outside of the turn and feels wobbly. The front end dives more than expected during hard braking. You may not notice this until you have to jump hard on the brakes. Rear-end squat during acceleration.
When is the best time to get an alignment?
The best time to get an alignment is after replacing your tires. Most tire repair shops will automatically perform an alignment after installing new tires on your vehicle. The best time to get an alignment is after replacing your tires.
What causes one side of a wheel to wear down faster than the other?
Bad wheel alignment can cause one side of the wheel to wear down faster than the other.
How many ball joints does a strut have?
Usually strut suspension only has one ball joint rather than two, and the steering axis runs from the lower ball joint through the middle of the shock absorber, with a bearing on the top of the strut carrying the weight of that corner of the vehicle. If the bottom of the strut is bolted to the spindle with two bolts, ...
What suspension do cars use?
There are many different suspension designs in use today. Most modern cars use either a MacPherson strut or a modified strut front suspension (some also have struts in the rear).
What is the SLA suspension?
SLA suspension has short upper and long lower control arms on each side with one of the control arms carrying the weight of the vehicle on a heavy spring , and each control arm has a ball joint that provides the steering axis, which is virtually always angled inward at the top to provide handling stability.
Why does my car pull to one side?
Car pulls to one side while driving. This is the most common sign of poor wheel alignment. It is often caused by driving over a pothole or hitting the curb. If you’ve done that, pay attention to the way the car drives and how the tires are wearing.
How many bolts are needed to replace a strut?
If the bottom of the strut is bolted to the spindle with two bolts, replacing those struts requires an alignment check. And if the top of the strut where it connects to the car body (with three bolts), is mounted in slotted holes for alignment adjustments, an alignment check is needed.
