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Thread: new part = very high idle

  1. #1
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    Default new part = very high idle

    i just replaced my air pressure regulator and ever since than the car has had a very high idle(from 1500-2000). ive got the idle adjustment screw turned down as far as it will go(no help). it does it wether its warm or cold. the high idle goes away after driving for a few minutes. any ideas on why this is.

    thanks for th help.

  2. #2
    Former frequent poster sblake01's Avatar
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    Default

    Because that's what an air regulator does. Sort of like the equivalent of a choke on a carbureated car. 1500-2000 is too high however. It sounds like the flap is out of adjustment and opening too wide. Refer to the factory service manual.
    2004 Ford Ranger EDGE Supercab
    (@Moonpup: This one really is an EDGE!)
    2005 Pontaic GTO
    2010 Mercedes Benz C300 AMG Sportline (Wife's car)
    2014 Kia Rio LX (Wife's daily driver)
    Certified HVAC/MVAC Technician

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