Skip the auto shop - Our mechanics make house calls

Q: Idling high

asked by on

The vehicle is idling high with the associated noise common with a high idle.

A: There are a couple of possible causes for a...

There are a couple of possible causes for a high idle. The most common is a Vacuum leak, which allows excess air into the intake causing the computer to read information improperly. Other causes are exhaust leaks, or various sensors that are faulty. A qualified technician, such as one of our YourMechanic experts, can diagnose this issue for you by checking the data from the computer.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Fuel leaking from driver's side.

I would start by checking the fuel filter and pump hoses that are located mid way under the car. You may have to remove a cover from under the car and then you will see the fuel pump and fuel...

Q: when i use emergency brake only one side locks up.

Hello. If the parking brake is only working on one side then you more than likely have an issue with the caliper on the non-functioning side. I usually start by checking the function of the caliper. I remove the wheel...

Q: Engine idle fluctuates

This may be a sign of a vacuum leak. A vacuum leak can be one of the most frustrating and difficult problems to diagnose. High idle speed is a common sign and stalling is another. Confirmation of an engine vacuum...

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...
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.