Skip the auto shop - Our mechanics make house calls

Q: Car idles low. What's going on?

asked by on

Car idles low when come to a stop. It acts as if it wants to cut off

My car has 123000 miles.
My car has an automatic transmission.

A: Hey there. The engine will need to be check...

Hey there. The engine will need to be checked for vacuum leaks in the PCV system or if the Check Engine Light is on and the idle control valve stopped working. Have a mechanic scan the computer and test the idle control circuit along with any possible vacuum leaks in order to diagnose the idling problem.

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

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: My truck shakes at traffic lights

Hi. The symptoms you describe could be a dirty or malfunctioning idle air control valve. Especially when hot, when the engine gets a leaner mixture of air and fuel, the idle air control will have a greater effect on idle...

Q: My transmission smells like a burnt cake

Hello, thank you for writing in. It sounds like the engine and transmission have either gotten pretty hot or it is possible that the transmission cooler was leaking into the cooling system. If the coolant and transmission fluid both smelled...

Q: My clutch pedal is extremely "light" and gears won't go in.

There are a few possibilities; you either have a problem with the hydraulics, a mechanical problem with the clutch, or a transmission fluid leak. Hydraulics: When you push down the clutch pedal, the clutch master cylinder (CMC) uses...

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...
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...