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-   -   High Idle (https://www.askmehelpdesk.com/showthread.php?t=141082)

  • Oct 15, 2007, 05:53 PM
    packerbacker
    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.
  • Oct 16, 2007, 06:31 AM
    CaptainRich
    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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