If I go over bump, something in wheel well knocks

My rear driver-side suspension has a problem. When I hit a slightly bumpy patch of road, something in the back is knocking against the wheel well. My mechanic said something about "bushings" or "bad sway bar links" before. What do you think it might be?
Experienced mechanics share their insights in answering this question :
Looking at the rear suspension of your vehicle, I see the sway bar links and control arm bushings could definitely be the cause. But there is no way to know for sure without having your vehicle inspected firsthand.

I suggest you call a professional, such as one from YourMechanic, to diagnose your wheel well noise issue.

How to Identify and Fix Common car Problems ?

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Common reasons for this to happen:

Worn out struts. Worn out strut mounts. Worn out control-arm bushing.

If you hear a clunk when the suspension works over bumps, you may have excessive clearance in a joint due to wear. It might be as simple as a loose nut on the strut, or something more subtle such as a shrunken, dried-out rubber bushing.
Rattling noises that appear when you`re driving over bumps, or on uneven surfaces, are often down to the suspension. These rattles can disappear once you speed up a bit or when the going gets smoother. The culprits may be the drop links (e.g. if they`ve snapped), worn bushes or corroded shock absorbers.
The most common reasons a Mazda 3 makes noise when braking are bad brake pads, bad brake rotors, or bad brake caliper.
If your car is making grunting or squeaking sounds when you`re going over bumps or turning, it could be a result of your front steering mechanism that`s wearing out. Be sure to have this checked out, since continued damage could result in you losing control of the car`s steering.
Worn-out Shocks and Struts

Continuous lack of damping can cause severe wear, which leads to pronounced bouncing and rocking when the car moves. Additionally, you`ll hear clunking noises when you go over bumps.

There are four sounds in particular that you should look out for: creaking, grunting, rattling, and knocking. See your auto collision center if you hear any of these noises, and keep reading for more on the four sounds of suspension problems.
Bad Tires/Bad Left Tire – A knocking sound may be heard when tires go bad, if they are unbalanced or misaligned, or if there is a broken belt in one of the tires. Wheel Bearings – If a wheel bearing is severely worn out the wheel will not be able to spin freely. This may cause a knocking sound to be heard.
A clunking, rattling, or squeaking noise from your front end while driving can be annoying and unnerving. Oftentimes, this noisy symptom means there is a problem with your vehicle`s suspension system. These sounds typically occur when driving over uneven surfaces, bumps, or potholes.
A clunking noise when the brakes are used typically suggests wear and damage to various parts. It can be caused by a number of things from a seized brake caliper or an extremely loose wheel bearing to worn out ball joints or steering components.
A clunking noise from under your car while braking at lower speeds doesn`t mean it`s the end. It does mean that there may be an issue with your car`s braking system –usually a worn-out part. More specifically, a clunking noise when braking can be due to worn or damaged discs, rotors, calipers, and backing plates.
No. Change it as soon as possible. As part of your suspension system, tyres can be damaged by the road surface. As well as potentially destroying your wheel, driving on a flat tyre can make it difficult to stop quickly in an emergency and your car could pull sharply to one side or make steering tough.
No. Change it as soon as possible. As part of your suspension system, tyres can be damaged by the road surface. As well as potentially destroying your wheel, driving on a flat tyre can make it difficult to stop quickly in an emergency and your car could pull sharply to one side or make steering tough.
Hitting a speed bump can cause the suspension in your car to compress as it attempts to absorb the bump excessively. Even if the suspension doesn`t bottom out, you are still placing extra wear and fatigue upon the components of the suspension when you hit a speed bump.
Squeaking, Clanking Or Knocking Noise

For example, suspension bushings ensure smooth articulation of the suspension`s moving parts. If these bushings go bad, there may be “play” in the system allowing the loose parts to rattle back and forth as you drive. This is a sign that your suspension is in need of service.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

If I go over bump, something in wheel well knocks
ANSWER : Looking at the rear suspension of your vehicle, I see the sway bar links and control arm bushings could definitely be the cause. But there is no way to know for sure without having your vehicle inspected firsthand.

I suggest you call a professional, such as one from YourMechanic, to diagnose your wheel well noise issue.

Can front wheel drive car engine power rear wheel drive
ANSWER : Anything is possible with enough engineering. The changes you are looking at would take major structural changes and would definitely not be an easy job. You could possibly consult a manufacturing engineer to get more details on how this could actually be carried out and whether it would be feasible.

Do I need to replace the hubs to go back to factory wheel bolts.
ANSWER : You’re wise to go back to factory fasteners. While there are a few good quality aftermarket products out there for your car, most of the options are a kind of one-size-fits-all that involve spacers and adapters that change the design offset and lead to all kinds of suspension and wheel bearing problems. you should not need to replace the hubs as long as the threads are not damaged. It should be possible to extract the studs through conventional means. If a hub IS damaged, then there is no choice but to replace it. This will involve replacing the wheel bearing as well so it can get expensive. If this project is more than you want to take on, you can contact Your Mechanic to have a technician come to your home or office and change out your wheels for you

Clunking car when I go over bumps
ANSWER : Basically, any bolted on or "jointed" moving part or bushing could account for noise in the front end. Not included in your list are rack and pinion mounts/bushings, strut bearings, tie rod ends, even brake parts (caliper torque plate), loose lug nuts, loose or worn sub frame bushings, and strut issues, including damage to spring seat rubber mount.

A qualified technician from YourMechanic can make an inspection to isolate the clunking noise using advanced diagnostics, such as chassis ears.

When I put my car up on the jack and the front wheel comes up and I go to loosen it the wheel hole wheel moves left to right like
ANSWER : What you are describing sounds like free play in the tie rods. Your car has enough miles on it for this to be a problem. The tie rods are the link between the steering gearbox and the front wheels and as they wear, they will develop a certain amount of free play. There are about six pieces there that can be replaced as needed to tighten things up again. You can contact Your Mechanic to have a technician come out to your home or office to check out your front end and advise you on which pieces need to be replaced. Don’t put this off too long. Eventually, a worn tie rod can separate, if that happens, you will lose control of the car.

My car won’t go past 35mph
ANSWER : Hi there. From the description you provided, your vehicle has problems with the transmission again. You stated it will not shift into 3rd gear again, like before the transmission was rebuilt. If the transmission is again the problem, it should be covered under warranty. It could be a faulty shift solenoid. The shift indicator not reading properly could be a faulty transmission position sensor. If this is an overall lack of performance issue, according to your last statement, then possibly you have a restriction in the exhaust system. I recommend having your vehicle’s problems inspected and diagnosed by a certified technician from YourMechanic.

Just had wheel speed sensor replaced, is the replacement of wheel bearings something I must do right away 2012 Chevrolet Impala
ANSWER : Hello. Unless the bearings are actually failing and making noise then they do not need to be replaced. I usually get the vehicle in the air and spin the bearings to listen for any noise or fell for any roughness. If there is none then it does not need them. If it does then they should be replaced soon. If you want to have them looked at, consider YourMechanic, as a certified mechanic can come to you to [see if you need bearings] https://www.yourmechanic.com/services/wheel-bearings-replacement

Turn knob to four wheel drive but won’t go into four wheel drive. I changed the switch and actuator but it won’t work
ANSWER : Hello. The 4WD system consists of a module, encoder motor, and actuator. The module operates the transfer case (component that sends power to the front differential). The transfer has an encoder motor that shifts the transfer case by the commands of the module. The front differential has an actuator to engages the axle assemblies to the differential. The flashing light is a default operation of the module. The module’s data would have to be read and look for any fault codes in the system. If you’d like to have this looked at, a certified technician from YourMechanic can come to your location to inspect this issue in person and advise you on repairs.