Q: The car vibrates at a certain speed

asked by on

The car vibrates when the speed reaches about 50 MPH and it continues until about 65 MPH. Then it goes away. The tires/wheels have been checked on numerous occasions. Have not had any success to finding out what is causing the vibration.

My car has 1000000 miles.
My car has an automatic transmission.

Hello. Since the vibration is vehicle speed sensitive, it is likely that it is related to the wheel/tire assemblies, driveline, and/or suspension. An expert would sequentially look at these systems to isolate the problem. The causes can be quite surprising.

A weak or failing shock or strut can account for this. In one notable case, I had a car equipped with new Dunlop tires that vibrated terribly. The tire/wheel assemblies all checked out perfectly on a calibrated balancer. It turns out the tire sidewalls were just too stiff in for that car’s specific suspension. Switched to Michelin tires and the problem disappeared instantly. You could try to have the wheel tire assemblies evaluated on a "road force" type balancer which accounts for variance in sidewall stiffness.

Tires might have unusual wear, often due to lack of rotation or misalignment, and this can cause vibration. If your wheel bearings have more than .002 inch of play, that could cause it as well. There could even be an issue with an unbalanced CV shaft or driveline, or loose u-joints.

Brake rotors or drums could be out of balance. To cover that possibility, you could try re-indexing (by one or two lug positions) the rotor or drum on the hub (try one wheel position at a time) to see if there is a reduction in the vibration. For help having this addressed appropriately, a professional from YourMechanic can conduct relevant tests to diagnose the vibration issue and advise on a repair.

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
  1. Home
  2. Questions
  3. The car vibrates at a certain speed

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: Does jacking up a car in one corner damage the chassis or sway bars.

If you use ONLY the jack, and support points, specified in the Factory Service Manual (FSM), no damage will occur. These contact points might also be specified in your owner's manual and shown there in illustrations. Please note that if...

Q: 2014 VW Jetta keeps saying No Key even when driving, happens often and dealership can't figure out.

Hi Christina. Thanks for sending in your question today. Intermittent issues like you're describing are incredibly difficult to diagnose. In most cases, it's a minor programming glitch with either the key itself or the ECU/Security system. If the dealership is...

Q: My truck vibrates in the frount end when i slow down are brake around 30 to 20 mph ive changed the whole set up as far as brakes

Hello. This is a sign of potentially bad or worn wheel bearings. When wheel bearings wear out or become damaged due to dirt or debris or lack of proper lubrication, they will cause this type of vibration which is more...

Related articles

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.