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What causes chevy malibu engine revs up while idling?

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  • Chevrolet Master
  • 14,585 Answers

The idle air control motor is dirty. Easiest way to clean is remove the throttle body and remove the idle air control motor off it. Use brake clean and clean both of them. Don't use a wire wheel on the control motor. This should take care of your problem.

Posted on Jun 08, 2014

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Posted on Jan 02, 2017

  • 3640 Answers

SOURCE: 1997 chevy malibu 3.1 engine starts rough and wont

check the fuel filter to see if it is getting clogged and not letting enough fuel through it. make sure you have proper fuel to throttle body so it will run properly. if this does not help much, check idle air control valve.

Posted on Jan 19, 2010

ZX2Fast
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SOURCE: My 98 Chevy Malibu v6 3.1 liter engine high idling

You probably have a large vacuum leak. With the engine running, listen under the hood for a hissing sound. Check all of the rubber lines running from the intake.

Posted on Mar 05, 2010

SOURCE: 1983 chevy pickup, 305 engine, automatic trans.

Bad lock-up solenoid (TCC) in trans

Posted on Sep 22, 2010

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1 Answer

How do adjust the idle on a 2000 Chevy Malibu 3100 v6


You don't , it's computer controlled ! If it won't idle you probably have an issue with IAC valve , idle air control valve , or the maybe the air by pass , passage ! Trying to adjust base idle will cause the check engine light to come on , an cause running problems . Idle Air Control Valve . Your best bet mite be to take your vehicle to a qualified repair shop that has diagnostic tool's to trouble shoot this problem !

Aug 17, 2016 | Cars & Trucks

1 Answer

I replaced my iacv on my '97 chevy malibu as recommended and after driving 34 of the recommended 40 miles the check engine light came back on....what could be the cause? what can I do to correct the...


have to reprogram iac to specs to do this hold rpm just below rev limiter for 2 minutes then do again should reprogram but turn the light out first by disconnecting negative battery cable

May 28, 2011 | 1997 Chevrolet Malibu

2 Answers

Fuel probelms


Try hitting the brake off and on to see if the rpm changes when you do that with the car in park. If it does, you may have a ruptured brake booster. A fluctuating rpm while your car is in park with the brake on indicates a vacuum loss. Other things may cause a vacuum leak including the air conditioner controls inside the vehicle. Other things that cause this may be cruise control or your Air Conditioners high idle solenoid.

Jul 31, 2010 | 2004 Chevrolet Malibu

2 Answers

Chevy 2002 Malibu ERG valve


Symptoms of a bad EGR valve are usually stumbling idle or the engine stalling when the car is warm (normal operating temperature). Find the EGR valve and locate the vacuum line attached to it. Start the engine cold and wait for it to warm up. When the engine starts to stumble, pull off the vacuum line. If the EGR is bad, the engine idle will stabilize and no longer stumble.

May 25, 2010 | 2002 Chevrolet Malibu

1 Answer

My 98 Chevy Malibu v6 3.1 liter engine high idling


You probably have a large vacuum leak. With the engine running, listen under the hood for a hissing sound. Check all of the rubber lines running from the intake.

Mar 04, 2010 | 1998 Chevrolet Malibu

4 Answers

99 chevy malibu - (Srv Eng Lite on) idling fast


check your idle control sensor sounds like its shot if this does not solve it your ecu could be faulty need a replacement

Nov 03, 2009 | 1999 Chevrolet Malibu

1 Answer

99 chevy lumina 94k mi transmission stopped working. Fluid good.


check fluid level, make sure proper fluid is in transmission otherwise take to trans shop to diagnse if level and type is correct(check at idle normal operating temp)

Oct 21, 2009 | 1999 Chevrolet Malibu

2 Answers

99 Chevy Malibu belt chirping noise problem.


one or more of the pulley's is defective, most likely the tensioner pulley, but check them all for wear and side to side movement which indicates a worn bearing, this causes the belt to not run true and chirp.

Apr 09, 2009 | 1999 Chevrolet Malibu

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