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    packerbacker's Avatar
    packerbacker Posts: 1, Reputation: 1
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    #1

    Oct 15, 2007, 05:53 PM
    High Idle
    I have a 94 Grand Am 3.1 liter engine that while in park idles at about 2500 RPM and when you put it in gear may go down to about 1500RPM. After warming up a bit it might drop to about 2000 RPM. Didn't see any obvious problems.
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #2

    Oct 16, 2007, 06:31 AM
    Quote Originally Posted by packerbacker
    I have a 94 Grand Am 3.1 liter engine that while in park idles at about 2500 RPM and when you put it in gear may go down to about 1500RPM. After warming up a bit it might drop to about 2000 RPM. Didn't see any obvious problems.
    High idle on these is often times due to a vauum leak. Could also be binding throttle cables or sticking IAC valve. Is the MIL (Malfunction Indicator Lamp) staying on? Or had any recent underhood repairs?
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