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high idle

This is a discussion on high idle within the External Engine forums, part of the LSx Technical Help Section category; anyone know what will make my car idle high? its been doing it the last few days, usually around 1200, ...

  1. #1
    James Bond Spikito's Avatar
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    2000 SS Black M6

    high idle

    anyone know what will make my car idle high?

    its been doing it the last few days, usually around 1200, but it was as high as 1400 once

    its not constant, but its more often than not, ill crank and itll be fine, i leave the house, get to a redlight and itll be high. sometimes if i kill it and restart right away, itll be back to normal, sometimes not.

  2. #2
    Senior Member bills98ta's Avatar
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    Vacuum leak ?

  3. #3
    Electrical Engineer KMdef9's Avatar
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    Quote Originally Posted by bills98ta View Post
    Vacuum leak ?
    If not this, could be a dirty MAF.

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    James Bond Spikito's Avatar
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    2001 3.8 Black - sold
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    i cut the A/C off today sitting at a red light, with the idle high, it sunk back to about 1000 when i did that, but my norm is still 850 or 900

  5. #5
    Senior Member JayTA98's Avatar
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    agree with the above. Start by checking for vacuum leaks. Clean the MAF as well. Check the PCV tubing aorund the engine.

  6. #6
    James Bond Spikito's Avatar
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    2001 3.8 Black - sold
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    what is it people use to check for leaks, is it ether or WD-40?

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    Spaz is My Mentor SMWS6TA's Avatar
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    carb cleaner

  8. #8
    James Bond Spikito's Avatar
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    2001 3.8 Black - sold
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    crap, JUST ran out of that today.
    LS6 intake, Pacesetters, TSP rumbler !EGR, !AIR, 295/35 BFG KDW II's, UMI Adj LCAs. Tick Master Cylinder, LS7 Clutch and flywheel, Pro 5.0, Lous short stick, Frost Tune.

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