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What's Your Idle Speed?

This is a discussion on What's Your Idle Speed? within the General Help forums, part of the LSx Technical Help Section category; I have a "slow to return to idle" problem with my auto 2002 Camaro. With the brake on and holding ...

  1. #101
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    silver
    2002 Camaro

    I have a "slow to return to idle" problem with my auto 2002 Camaro. With the brake on and holding to a stop the idle will eventually get down to 650rpm. But, it takes a while to get to that low idle speed. With the trans in drive just release the brake and the car will start to roll and and then the idle speed goes up to 1100. The car will actually run through 1,2 and into 3rd on level ground all after a 650 brake on idle. I have a new IAC in hand (with an orange/red Oring) and will R&R same tomorrow. Sure hope it makes a significant difference. Any suggestion are welcomed.

  2. #102
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    silver
    2002 Camaro

    Can it get worst

    Quote Originally Posted by vettedog72 View Post
    I have a new IAC in hand (with an orange/red Oring) and will R&R same tomorrow. Sure hope it makes a significant difference. Any suggestion are welcomed.
    OOOOH yea, it made a difference. Sure glad the brakes could hold it. Even after warm up it was still charging down the road if you took your foot off the brakes. I think it was better than 1200 when it started to roll....it can make it to 4th now. I am going to replace the throttle position sensor this afternoon. Hope it makes a POSITIVE difference. Ive got an appointment with somebody that knows what they are doing Wed so I can't be in too much trouble (I hope).

  3. #103
    Retired NOT tired SteveC's Avatar
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    SOM
    2001 Z28 (Sara)

    I have a performance converter (10 1/2" vice 11"), and my cold start idle speed is set @ 1200 rpm, and decreases to 700rpm (warm).

    SteveC
    Last edited by SteveC; 01-07-2013 at 06:09 AM.

  4. #104
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    silver
    2002 Camaro

    Thanks Steve. I get 600 to 700 after it is in drive and with the brake on (but it takes a while to get there). Back to yesterday: I decided I would drive it a few miles to get the TPS. It actually ran better. I changed out the TPS and it is about the way it was before I changed the IAC. I wonder if the torque converter is releasing as it should. It just seems like I have to mussel it down each time I stop from 1100 or 1200 RPM. It even jerks a little when it down shifts to 1st. Hope I can get in the shop this week.

  5. #105
    Senior Member Naaman's Avatar
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    Cayanne
    98 Z28 Vert M6

    Sounds like possibly an issue with the torque converter clutch? How's the transmission fluid?

  6. #106
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    2002 Camaro

    I have not checked it in 3 or 4 hundred miles but it was fine when last checked.

  7. #107
    Junior Member Jdep162's Avatar
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    black
    1998 camaro

    for what its worth my stock ls1 camaro starts and idles cold at about 950, then down to 750, and once completely warm purrs at 650, and then 550-600 in gear. tach on dash is a little off, those readings are from a digital scanner

  8. #108
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    2002 Camaro

    Thanks for the idle speed info. I took my Camaro over to a guy that knows the cars and left it to be "fixed". He could pinch closed the PCV line and the idle immediately fell off to normal. Obviously there is an air leak in the PCV line. I don't know what else he will find but anyway the idle will be right when he is done along with some other services I requested.

  9. #109
    Member robs98mysticZ's Avatar
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    Mystic Teal Metallic:320c
    1998 Camaro Z/28

    mine before cam and tune would idle at 1k rpm my bros 02 ws6 m6 idles at 1k also

  10. #110
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    Thanks Rob. Mine is in the shop and I hope to get it back Monday.

  11. #111
    Former Mopar Man 2002ssslp's Avatar
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    Silver & Blue
    02 Camaro SS, 04 GTO

    800 rpm's when warm and not an rpm more or less.
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
    My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k

  12. #112
    Moderator 35th-ANV-SS's Avatar
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    02 35th LE Camaro SS

    Quote Originally Posted by 2002ssslp View Post
    800 rpm's when warm and not an rpm more or less.
    What kind of RPM gauge are you running that lets you know you are running 800 RPM and not 799 RPM?

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