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Idle RPM of 1300 when coasting

This is a discussion on Idle RPM of 1300 when coasting within the General Help forums, part of the LSx Technical Help Section category; Hello, When approaching a stoplight I shift into neutral. The idle will then drop from the running speed of wherever ...

  1. #1
    Junior Member
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    white
    2000 SS Camaro

    Idle RPM of 1300 when coasting

    Hello,
    When approaching a stoplight I shift into neutral. The idle will then drop from the running speed of wherever it was, down to 1200-1400rpm where it stays until 3-4 seconds after I have reached a complete stop. It will then drop down to it's normal idle rate of 800rpm. Any ideas?

  2. #2
    Senior Member OnEbAdReDSS's Avatar
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    Red
    2000 Camaro SS # 5,876

    i have the same damn thing thats happening to me... i just think it is normal... oh well i lived to be normal

  3. #3
    rapter34
    Guest
    I got the same.

  4. #4
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    any mods? Check for vacuum leaks first. Sounds like their might be some unmetered air getting in there somewhere or a tune issue if you have mods.

  5. #5
    caraholic ggino85's Avatar
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    blue green chameleon
    1998 Trans Am

    mine does it but only when i have the a/c or heat on.

  6. #6
    !!!!!!!!!!!!!!!!!!!!!!!!! ATCharming's Avatar
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    Silver
    2000 Camaro SS

    idle is always different in park or in gear on an automatic car, from what ive seen

  7. #7
    Junior Member
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    seabring silver
    2002 Camaro

    It does this to allow a smoother down shift, if you were to grab a lower gear.

  8. #8
    Retired NOT tired SteveC's Avatar
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    SOM
    2001 Z28 (Sara)

    Sounds like the throttle plate has gunk on it, and it is sticking open.

    SteveC

  9. #9
    Senior Member bigrondownhiller's Avatar
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    Black
    1996 Camaro Z28 vert

    auto or 6 speed?

  10. #10
    Member bryceslu's Avatar
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    Black
    00 NHRA Formula

    Mine does the exact same when Im runnin a little hard.
    If I take it easy through town It doesnt seem to idle high when taking it out of gear.
    94 m6 Formula - Sold
    2000 NHRA Formula - Always For Sale

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