Skip the auto shop - Our mechanics make house calls

Q: Car and engine vibrates tremendously at idle and while driving

asked by on

Car and engine vibrates tremendously at idle and while driving

My car has 158000 miles.
My car has an automatic transmission.

Hi There, This may happen for a variety of reasons. Vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal idling RPM which may also cause the motor to shake or vibrate more than normal. This creates a loss of power that resonates throughout the motor additionally causing other problems with ignition and fuel timing. Anytime a misfire is caused, this causes an imbalance in the motor which will cause the motor to shake or vibrate. The other issue that may cause this type of shaking or vibration is a broken engine mount. Engine mounts are generally rubber mounted braces that hold the engine in place to the chassis of the car. When these break or become weak or faulty, this may cause the engine to vibrate heavily. I would suggest having an expert from YourMechanic come to your location to diagnose and inspect your vehicle.

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: Why is my engine light on in my 2008 VW Jetta

Hello. From what you are explaining this is due to a failure in the evap system. If you were having trouble with it after fueling then most of the time it is cause by a failure in the purge valve...

Q: Car temperature control only blows hot air

The A/C would need to be checked with gauges to see if it has refrigerant. If the temperature blend door actuator is broken, the A/C can be stuck in warm if that was the last position you had it in....

Q: Steering slipping

Hi there. I'm unsure of the problem you are describing. If it has to do with your steering not reacting to you turning the wheel, then you may have a problem with your rack and pinion. Also, your steering contains...

Related articles

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...
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.