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
  1. Home
  2. Questions
  3. Car and engine vibrates tremendously at idle and while driving

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: Air bubbling in coolant reservoir when car is starting /running.

When the radiator hose was broken, did the vehicle overheat and did it overheat bad enough to cause a failure of the cylinder head gasket? When the new hose is replaced, air must be purged from the system and you...

Q: car stuttered and died, engine light came on, checked fuses and fuel pump could the filter cause problem?

Hey there, thanks for writing in about your 2003 Ford Focus. It is possible that a faulty fuel pump or fuel filter would cause this. Other items can also cause the concern you have, such as a vacuum leak or...

Q: Having problem with ouside air coming into the A/C

Since the A/C compressor is driven off the engine crankshaft, the A/C will typically work better at higher RPMs. What you're experiencing may be normal for your vehicle, or you may need an A/C system recharge to restore peak A/C...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...