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  1. #1

    Join Date
    May 2018
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    2000 LS1 3000rpm Idle

    So my LS1 sat for a few months and I got it running again. Went out to work on it earlier and when I started it, the motor revved up to 3000 and stayed hovering there. Put it in gear (5 speed) and let out clutch, dropped but went right back up when clutch depressed.
    Drive it up and down the road, worse outcome. 3800and rising after pressing clutch.
    Shut off the key while rolling down the road and turn it back on...MAGIC. normal idle.

    Back in the driveway...shut car off, restart. 3000rpm. Kill key, turn back on. Normal idle.

    I checked for vacuum leaks with carb cleaner and didn't find any. But I also ran out. Sprayed everything down with soapy water but didn't see any bubbles and idle never waivered.

    Help?

    Just put a new battery in it and have to replace the alternator, but that shouldn't effect the car idle...right?

    No CEL or SES

    2000 LS 5-speed ecotech

  2. #2

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    Bueller?
    Bueller?
    Anyone?

  3. #3
    trottida's Avatar
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    Aug 2014
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    Northern Ontario, Canada
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    TPS perhaps. I'm not as familiar with the L Series but the symptoms you describe are the same as the S Series. Change the sensor and see if it corrects the issue.
    Current
    1999 SL2 MT (256K km, 10-2016 to present)
    2001 SL1 MT (415K km, 10-2008 to present)

    Past
    1993 SW2 AT (03-2000 to 04-2010)
    2001 LW200 MT (06-2001 to 01-2005)
    1992 SL2 MT (06-1992 to 09-1997)

  4. #4
    HNIC SC2Sick's Avatar
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    Nov 2004
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    St. Paul, Minnesota
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    Sixthsphere.com Owner
    2016 Honda Fit
    2003 BMW e46
    2001 Saturn SC2 - Forged with everything but boost - FOR SALE PM FOR MORE INFO
    1998 Ford Ranger

  5. #5

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    Thank you for the input!
    I'm at work for another 3.5 hours, so I'll check out that stuff when I get home (weather dependent).

    More ideas are welcome.

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