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Thread: idle

  1. #1
    Join Date
    Apr 2004
    Posts
    89

    Default idle

    Perhaps you can give me some advice on this:

    When I come to a halt my car is idling at ~1250 rpm, and drops down to normal idling speed (sometimes lower and hunts) after a few seconds.

    Stry if I dip the clutch while driving, it still idles at 1250 but doesn't drop.

    Possible airflow valve type thing or any other ideas? ICV?

    Its a 1991 525 by the way

  2. #2
    Join Date
    Jun 2005
    Location
    Cleveland, OH
    Posts
    1,279

    Default

    Quote Originally Posted by karl1171
    Perhaps you can give me some advice on this:

    When I come to a halt my car is idling at ~1250 rpm, and drops down to normal idling speed (sometimes lower and hunts) after a few seconds.

    Stry if I dip the clutch while driving, it still idles at 1250 but doesn't drop.

    Possible airflow valve type thing or any other ideas? ICV?

    Its a 1991 525 by the way
    Check for Vacuum leaks
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  3. #3
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,839

    Default

    its possibly the ICV, might be dirty or something, search for "ICV" because I think carb cleaner kills some of them.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  4. #4
    Join Date
    Dec 2005
    Location
    Brisbane Australia
    Posts
    1,447

    Default

    does this seem to occur only when the engine is cold or when it is at operating temp or what?
    it does sound like it could be your ICV if it happens all the time. (that is hot and cold engine)

    Germans: Why can't they make everything?

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