Q: my van is making clunk and vibration noises that worsen while coasting or with less rpms

asked by on November 16, 2016

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. it literally sounds as tho the whole front end of the van is beating itself apart. 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 226875 miles.
My car has an automatic transmission.

Hi there. It sounds like the transmission is having an internal failure. Some other possibilities are wheel bearing, axle, brake caliper, and brake hose collapsing. A worn wheel bearing will have noise at all speeds while increasing noise and vibration at higher speeds. A faulty axle usually vibrates on acceleration and can make a lot of noise while turning. A sticking brake caliper will cause a pull and sometimes smoke or burning smell. A collapsed brake hose will cause the same symptoms of the brake caliper sticking as it will not allow the return of brake fluid pressure to release the pads. With what you’ve described and knowing that these vehicle are known for transmission problems, I would have a qualified technician perform an inspection to properly diagnose the concern and avoid replacing unnecessary parts. Your Mechanic has several available technicians that can assist you with a car vibrates inspection.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

Occasional hesitation and shaking, brakes engage randomly

Hello. I suggest to inspect two components for possible faults. It is possible that the accelerator pedal position sensor is improperly translating pedal position which will greatly impact the air-fuel ratio negatively which could cause a hesitation. I'd suggest getting help from a...

Fluid leak red and brown under the car, and once in a great while the engine will overheat.

Hi and thanks for contacting Your Mechanic. The leaks will not cause any damage to the vehicle it self, however, the part that it's leaking from will eventually begin to loose lubrication and come apart. The transmission oil leak will...

Radio/Speedometer not working?

Hi, thanks for writing in. I'd be happy to provide my insight. This can be caused by a few things. There is a speed sensor at the transaxle that emits a signal to the computer, however if the car is...

Related articles

The Best Used Cars to Buy If You’re an Interior Designer
As As an interior designer, you need to transport a great many different items, including fabric, paint and wallpaper samples and sometimes even furniture items. You probably don’t handle overly large loads very often, and when you have to, you’ll...
Chrysler Certified Pre-Owned (CPO) Car Program
If If you are shopping for a used Chrysler vehicle, you may want to check out cars under their certified pre-owned program. Many manufacturers have a certified pre-owned (CPO) program, and each one is set up differently. Read on to...
A Buyer’s Guide to the 2012 Chrysler 200
In In 2011, Chrysler completely overhauled, updated, and remodeled their entire line, including the introduction of the new Chrysler 200. This reimagining of the old, boring Dodge Sebring sedan was already an exciting move for Chrysler, and the 2012 Chrysler...