Question about 2002 Pontiac Grand Am

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High idle my car is idling at 2500 rpms

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  • 84 Answers

Adjust the idler screw down

Posted on Jul 10, 2013

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Posted on Jan 02, 2017

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emissionwiz
  • 76649 Answers

SOURCE: 1995 pontiac firebird formula v8 idle

The idle speed is not adjustable, it is computer (PCM) controlled, you can turn the screw for the hard stop, but the computer will just over ride that adjustment for the most part, what I think you may need to do is clean the throttle valve and the idle speed control air bypass valve, use carb spray, spray it in the intake with the engine running use the at least 1/2 the can, the engine will try to stall, keep it running, after you are done disconnect the battery for 10 minutes, reconnect and drive a few days so the computer (PCM) can relearn your driving habits and set the idle correctly based on your driving.

Posted on Oct 16, 2008

  • 1 Answer

SOURCE: car idles rough, when i step on the gas it bogs out, dies @ stops

change your air filter

Posted on Jan 15, 2009

haider_alhar
  • 90 Answers

SOURCE: car idle too high and dies

check your fuel pump

Posted on Jun 01, 2009

  • 41 Answers

SOURCE: 2004 Grand Am With High Idling Problems too!

Make sure your throttle cable is not bound up on anything. Also where the throttle cable ends at the throttle body make sure it moves freely and there is nothing obstructing its movement..Rpms are a little too high to be a vacuum leak.

Posted on Jun 24, 2009

  • 173 Answers

SOURCE: 1995 Grand Prix idling high

A verry large Vacumn leak .. check for a hose off somewhere..particularily the PCV hose..also were the O rings present or missaligned on the Injectors?? also the gaskets between the lower and upper Intake manifolds could cause this if they were not installed in the proper position.. If you have a scan tool Check Idle air controll motor...Under data stream IAC will read 0 counts this will confirm a vacumn leak

Posted on Nov 06, 2009

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1 Answer

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sounds like you may have a vacuum leak. any air entering engine not passing through the throttle body will cause engine to race. a whistling sound is sometimes a sign of vacuum leak but not always audible. propane is the recommended method finding leak but I find this unreliable. spraying carb cleaner around suspect areas and listening for a rpm change is more successful. just remember carb cleaner is extremely flammable and caution must be used.

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change plug and wire if its been a while most cars have 90000 miles platinum plugs in them.but the wires wear before plugs.so change plugs and wires.+clean fuel injectors .change fuel filter and air filter.if car still run rough your idling to low.have idling check .

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High idle 2500-3000 rpms


you can turn your idle down. i have the same car and it was doing the same thing. i had someone adjust it and it hasnt had a high idle since

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