Q: No codes, vibration at idle

asked by on

To start off, I have no codes. I seem to have a vibration at idle and gets worse with the AC on, but when I drive the problem goes away, and my rpm is lower than usual. Also my car seems to run to it's full power. So what what should I replace, clean, inspect etc?

My car has 102000 miles.
My car has an automatic transmission.

I might recommend using a bottle of fuel injector cleaner in the gas tank and some Seafoam in the oil. Those together will normally smooth out any rough idle that can be fixed with cleaners.

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. No codes, vibration at idle

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: Speed wont go above 60mph no matter if i step in the gas. Please help.

Hi Otto. Thanks for sending in your question. Typically when the car will not accelerate past 60 MPH, it’s due to either the ECU activating a limp mode or other mechanical (fuel or ignition system component) failures. Some of the...

Q: Q: my car won't start

This can happen for a wide variety of reasons. Unfortunately, without additional detail this cannot be diagnosed properly without inspecting the car. I would recommend having a certified expert, such as one from YourMechanic, come to your home to diagnose...

Q: My brakes are squeaking, dealer said they can check if a service would be due for $140 or to replace all 4 completely it would cost $740.

Hi there. Most shops will charge to replace the brakes on a vehicle by the axle. That would be the front wheels as one axle and the rear wheels as a second axle plus parts. The dealership wants to replace...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...