Skip the auto shop - Our mechanics make house calls

Q: vibration clunking sounds and shaking when the car loses speed, has less rpm or brakes applied

asked by on

my van is making clunk and vibration noises that go away if i am gaining speed and rpm but becomes severely worse when the rpms level out at a travel speed. it also worsens when coasting. when the rpms are low the vibration is high. it is strong enough that i feel it in the floorboard and the steering wheel as well as in the cabin of the van in general. It becomes louder the slower you coast and almost violent when the breaks are applied at any speed. the front tires have been replaced and balanced, the brake pads and rotors have been replaced and re-inspected, Inner and outer tie-rod ends have been inspected and do not appear to be the culprit. the speed of the vibration and thunky noise increases as the vehicle loses speed via disengaging the accelerator pad or by applying the brakes. But if you accelerate quickly is subsides again until you begin to lose rpm and speed again.

My car has 225875 miles.
My car has an automatic transmission.

A: Hi there: I’d usually assume that this typ...

Hi there:

I’d usually assume that this type of issue is related to suspension components, but since you’ve indicated those have been recently replaced my thought is that you might have worn out body mount bushings or engine mounts. There are other items that could cause the vibration issue you’re experiencing at slower speeds, which is why it’s probably a good idea to contact a professional mechanic to complete a vehicle is vibrating inspection.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Hi the transmission is ranting good fist gear and then when chancing second gear it's going like neutral

Check the transmission fluid first. This is done with the engine warm and idling and the transmission range set to neutral. The specifics of checking your transmission fluid should be detailed on the dipstick or in your owners manual. A...

Q: trying to start on it's own

Hello, thank you for writing in. One of the main things to be concerned with is that there was a fire started with the spilled oil. There has to be an ignition source of some kind, and if it came...

Q: Code reader not working.

Hi, issues with the data link connector are common. Most of the time a bad fuse is the culprit. If you have verified the fuse is good, there are other things you can visually inspect before seeking the help of...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...