Skip the auto shop - Our mechanics make house calls

Q: Why is my car idling high at an RPM of 1200?

asked by on

After cleaning throttle

My car has 139000 miles.
My car has an automatic transmission.

A: This may be caused by a dirty or failing id...

This may be caused by a dirty or failing idle air control valve/module. As you may know, this is a unit that monitors the air intake as it is mixed with fuel prior to being injected into the engine. When this is not working properly, this can cause the air/fuel ratio to be out of balance causing a spike in idling as you have experienced. I would recommend having an expert, such as one from YourMechanic, come to your location to diagnose and repair your high idle issue.

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: I have a question about my headlights.

You may want to check local laws regarding the use of colored light use. You may only be allowed to use them at car shows and while parked. If you want to add lights to the headlight housing, it may...

Q: My alternator is broken I need to know what amp it is and can't find it on old one

The only alternator listed for this car is a 150 amp. These alternators are controlled by the engine powertrain computer. It is recommended to get the computer scanned for codes to complete diagnosis of the alternator.

Q: I think my motor is toast.

It's possible you have major engine damage but to rule this in or out, the best thing to do is schedule an engine diagnostic. One quick test you can do is a compression test. Obviously, if compression is super low...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...