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What Is Casuing A Strange Thumping Noise Coming From The Rear Of The Vehicle When Slowing Down

Thumping noise coming from rear tires of car when I accelerate?

Wheel bearing sounds to be it and don't bypass with the louder radio to drown the sound... its no longer a restoration, basically a band-help and that i wish you does not try this to drown out loud engine knock or severe brake grinding... additionally examine for any unusual positioned on of the tire tread... You suggested the pads have a lot of meat, yet analyze to the different factor for swifter wearing & that should signify caught/sticking caliper/broken brake hose...

Mechanics! Thumping noise from car wheel while driving? What could this be?

I have an '03 Toyota Camry with 83k miles.
While I'm driving, there is a thump thump thump noise coming from a wheel that is in rhythm with the tire rotation. Faster you accelerate, the faster the noise.
You can only hear it when driving 20mph or higher. No grinding noise, though.
I cannot hear it as well when I apply the breaks. In general, it's a faint noise and not too loud yet. The tires seem to be balanced and I cannot see any obvious bubbles or lumps. No uneven tread wear either.


Please help me figure out what this is. I can't afford a car repair if it's not anything that would cause me to lose control of the vehicle while driving.

I have a strange whining noise coming from what sounds like the rear of my car when driving.?

Whole lot of things this could be. Rear axle final drive, drive-shafts and yes the bearings - sound like whoever did these for you didn't know how to diagnose the whine. Bearings will whine constantly, the final drive and shafts will only whine when under pressure from the engine either during acceleration or engine braking. To test drive the car at about 50 mph - stab the throttle - but not enough to activate the kick-down, if the noise gets worse it is very likely to be the drive axle. Next at about 60 mph knock the car into neutral and use the brakes only to slow down - if the noise appears now it's the drive-shafts. It's all about applying pressure to the components that are likely to be making the noise.

What is this thumping noise coming from under my car on the driver's side?

My car is a honda civic,I have just replaced my drive shaft on the driver's side about 2 days ago. I didn't have any problem until today. While on the freeway I heard a loud continous thumping noise coming from under my car. I heard it yesterday but only at low speeds and it wasn't that loud. The problem might be that I put in the axle wrong but i have checked it out and everything seems to be in place. There is nothing that comes close to touching the driveshaft. When my foot is on the gas pedal the noise stops for a bit but when I release it the noise comes back on. I don' know what the problem is and plus I will hear it too if I make a left turn. Is it the drive shaft or something else?

Thumping or bump noise when driving?

Alignments only solve issues related to pulling/uneven tire wear. A thumping sound indicates a suspension problem. You don't state where you feel the thump. Is it in the steering wheel? Is it under your seat? Does it sound like it's coming from the front or back? It is only at certain speeds? Does the frequency of the thumping change with your speed or does it happen only as you go over bumps? Does it happen when you are going straight or turning?

Basically, there's a lot that can go wrong and make thumping/bumping noises under a car. More information is needed in order to diagnose your problem. A common cause of this noise is struts/shocks and their respective mounts. Sway bar links are also common causes of that type of sound.

A good mechanic should be able to test drive your vehicle, check it out and identify the problem. I'd hold off on the alignment until you get the problem figured out.

Good luck and if you edit your post with answers to the above questions it may help us help you.

What is causing the clunking/thumping noise under the front end of my car on rough road or even little bumps?

if it is not speed related

and it is not braking related

then either get the cat out from under there or

have a good close look at your suspension for loose or worn parts...

one thing just hit me... MOTOR MOUNTS!!! check to see if you have a broken motor mount, or 'dog bone'... most front wheel drive cars mount the engine sideways in the car, and have a mount on top called a dog bone to keep the engine from rocking...

If that is broken you can easily get a thumpng from under the hood...

missing or damages bushings, tie rods, bump stops. anything loose

you will want the car on a lift for a good look, and while you have the car in the air, and you are wearing your grubbies, then bear hug one of the wheels and try to move it side to side and in and out and up and down...

Check for loose lug nuts, and any play in the shocks, steering, tie rods, or suspension... something's not right somewhere.

What causes thumping noises when braking ?

I am 95% accurate here,
you car has been parked for a while right?
a film of rust developed only on the shinny part of the rotors from not being driven, the rotor part where the brake pads fit protect the rotor from rust here so when you drive it and apply brakes, the pads hit the rusted area........then the clean area..........then the rusted area........then the clean area making the pedal go up and down and making a scraping noise.
if the car was sitting for a few months, this film of rust will wear off in time, longer sitting? the rotors are now no good and need replacing. replace the pads too.

What's the cause of a knocking/thumping noise from the rear of the car?

It sound like some thing is wrong with one of the rear brake. Have you any work done back their. If you can, drive next to a wall and roll down your windows and listen for the noise. that would be a starting point so you can pin point the noise. good luck. P/S let me know what you find.

What can cause a thumping or clumbing noise when i step on the brakes? It sounds like....?

did he put a new drum or brake bads on. either drum is worn out out brake pads are worn out, although ive never heard them make a sound like you described. oi and to the above poster, if your brakes are squeaking they are done up to tight or they have worn right down and rubbing metal to metal! not good in any case. Get them checked, or checkem your self

The thumping sound from a car with a rear window open is exactly the same effect as blowing across a beer bottle - the air inside the car is resonating at a very low frequency.  The frequency is too low to hear, but you can feel the pressure change as thumping.When the air hits the front of the car and flows around the side, you get small vortices, in a process known as vortex shedding This oscillation, if it matches the resonant frequency of the space inside the car, will cause the air inside the car to resonate, and that's the thumping sound you hear, just like blowing air over the top of a bottle.If you open more windows, you change the resonant frequency of the space inside the car enough that it no longer matches the vortex shedding, you can stop the thumping noise.The severity of this thumping noise depends on several factors, including the aerodynamics of the car, and the resonant frequency of the size inside the car (governed somewhat by geometry of the inside space of the car).  What Jack Dahlgren said about the aerodynamics and turbulent flow from older cars is correct - chaotic, or turbulent flow doesn't have a regular oscillation frequency, and therefore can't cause resonance inside the car.Also, I see you're asking for an automotive engineers to explain this.  While I was an automotive engineer in the past, you should really be looking for an engineer who specialises in fluid dynamics (aeronautical engineers for example)

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