Skip the auto shop - Our mechanics make house calls

Q: Vibration while stopped when engine under load (AC + full wheel lock); more noticeable w/ cold engine

asked by on

My car has had vibrations when turning the wheel and the car is stopped or just start moving slowly, e.g., when I am pulling out of my garage in the morning. The whole car vibrates; it can be felt in the steering wheel, seat, and floor. It is definitely more noticeable when the engine is cold and under load, like when AT is in Drive, the AC is on, and steering at full lock (left or right). When the car warms up the vibration is still there but less noticeable. The car has been to the dealership for this problem twice but they say they could not reproduce the problem. The front and side motor mounts were replaced but that did not change anything. The rear motor mount has been inspected twice and is fine. Also, AT and PS fluids were changed. To me it seems like it's either a pulley or the belt tensioner issue but I have no way of diagnosing. Do you have any other suggestions on what to check? Thanks.

My car has 85000 miles.
My car has an automatic transmission.

This may potentially be a poor engine running condition such as a lack of fuel delivery which could cause it to run poorly resulting in vibration. Are there any check engine lights on? If so, I would recommend having the car hooked up to a scanner to download any potential fault codes to diagnose. If you need further help with this, or a second opinion feel free to contact a certified technician from YourMechanic who can properly diagnose the vibration issue.

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
  • Home
  • Questions
  • Vibration while stopped when engine under load (AC + full wheel lock); more noticeable w/ cold engine

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: Brake caliper piston doesn't retract after brake pad replacement.

Hi there. If you cannot retract the caliper pistons when replacing the brake pads then you may have a master cylinder failure that is holding pressure in the braking system. If you have already replaced the pads and put everything...

Q: Cylinder misfires

Sometimes an ignition coil failure may be due to outlying causes like oil on plug wires or plugs with too large of a gap. If the coil has to work too hard to jump the gap, the spark plugs can...

Q: Steering/ front end vibration at high speeds

Hey there. I would recommend checking your intermediate shaft from the steering wheel to the rack and pinion. If the joint on your intermediate shaft has failed, this can cause the steering wheel to shake at certain speeds. If the...

Related articles

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.