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.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: 1996 Chevy C1500 turning off after a while driven

Sometimes a bad crank sensor or ignition coil will only act up when the engine is hot. Heat causes resistance in the component to increase. If the component is already starting to fail, the added resistance could be enough to...

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: overheating at idle with new clutch fan

Inspect and verify that there is no plastic bag/trash on front of condenser or up between the radiator and condenser. Plastic ductwork around the fan are all present and intact. You should also consider whether the fan clutch an OEM...

Related articles

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...