Q: Car vibrating/shaking when idling

asked by on

Sometimes, when I'm sitting/idling, say, at a traffic light, my car shakes/vibrates; I can really feel it in my steering wheel but it seems to be the whole car. Turning the a/c off seems to make it better. If I put it in Neutral while at the light, the vibrating stops or lessens so that's what I've been doing when it happens. Otherwise, the car is in good shape; I do regular maintenance and I'm pretty easy on cars, in general. Any help will be much appreciated. Thanks, Shelly

My car has 37700 miles.
My car has an automatic transmission.

This may be related to an idle air control valve or potentially low fuel pressure. The idle air control valve monitors air intake as it is mixed with fuel prior to being injected into the motor. When this is not working properly or sending inaccurate signals to the ECU, this may cause an improper amount of air and fuel to be supplied at idle. This will be worse when the AC is on as the AC requires more power from the engine to operate resulting in more of a strain on the engine. I would recommend having an expert from YourMechanic come to your location to take a look at the vehicle to determine what may be causing this shaking/vibrations.

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. Car vibrating/shaking when idling

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: I have a 2003 toyota camry with "check engine" light on. I was told by one mechanic at Goodyear that it is due to catalytic conve

I think what the mechanic was telling you is that there are two different ways to replace a catalytic converter. The first way is to have factory type parts installed, that will normally come with the converter, and the adjoining...

Q: Trouble starting and acceleration bogs down

Hello there, thank you for asking about your 1986 GMC S15. You don't say whether you have an automatic or manual transmission, so I'm not sure how to help you with your shifting concern. As far as the engine performance...

Q: Car ran out of gas and multiple repairs resulted

As you may already know, your car's fuel pump is cooled by the fuel in the tank. Fuel pumps do tend to generate a fair amount of heat and so naturally, when it does run dry, it can easily damage...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...