Q: Vibration

asked by on

My car started vibrating at around 30 mph it seemed to stop when I let off the gas. I changed the u joint and it didn't make a difference. The next day the vibrations go allot worse. It starts at 25 mph and gets worse the faster you go it doesn't matter if I'm hitting the gas or not now. I have no vibration in the steering wheel or gas pedal.

My car has 230000 miles.
My car has an automatic transmission.

If the vibration is not felt through the steering wheel but rather is felt through the car body, it could possibly be due to wheel/tire assembly imbalance in the rear and/or defective tires in the rear. Another, somewhat less common possibility is suspension faults, again in the rear, such as strut/shock failure. Certain tire defects, particularly internal belt damage or separations, as well as irregular tire wear will cause vibration. Defective tires will vibrate no matter how "well" balanced they are and indeed some brand new tires with irregularities in sidewall stiffness and excessive radial force variation will vibrate no matter how well balanced. Contributing factors in the circumstance you are describing could be worn struts in the suspension. If there are flat spots on the tire tread, that would be indicative of worn struts. If you request a noise/vibration diagnostic, a certified mechanic from YourMechanic would evaluate all the possibilities, including tire balance, and resolve this for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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

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: Loud noise from underneath car.

Hearing any noise coming from your car can be startling, but it can be especially so when that noise is so loud others cannot hear you! Though the information provided is a bit limited, my experience tells me that the...

Q: Car shakes at highway speeds

Hi! At your mileage the pads and rotors have of course been replaced or serviced before. It is likely due for another brake appointment. If the brakes are presenting issues it is not something that you should wait on. Waiting...

Q: Transmission codes P0700 & P0711 My car decelerates from time to time and jerks. What could be the issue?

The two codes are definitely closely related to your issue inasmuch as the faults in both codes will often cause the powertrain to go into limp mode. So, you are starting with pretty "tight" clues insofar as the particular codes....

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...