Question about 1999 Pontiac Grand Am GT

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What is the normal idle speed for a 1999 Pontiac Grand Am 2.4L engine?

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  • spitfiresrul Apr 08, 2011

    So, if it is idling around 500 in gear (automatic) could that cause stalls? Is it possible to raise the idle?



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800 RPM

Posted on Apr 08, 2011

  • spitfiresrul Apr 08, 2011

    So, if it is idling at 450-500 in drive, can that cause a stalling situation? Can the idle be adjusted?

  • Jude Meredith
    Jude Meredith Apr 08, 2011


    yep thats a little low. autozone does free computer code reading. Im not for sure -it might have an idle screw. if it does it will be right around where the throttle and cruise control linkage go into the throttle body, look closely and it might be a special tool to adjust it. It may need a throttle position sensor but see what codes its storing before you buy parts. jm



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