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Ford Explorer: Rough idle when cold

  1. #1
    Don
    Guest

    Rough idle when cold

    My '98 Explorer (V6) idles rough when cold but will accelerate and drive
    fine. After a few minutes of warmup it idles fine. Anyone have any
    suggestions as to which sensor or other component to look at first and how
    to troubleshoot it? Thanks.

    dj



  2. #2
    wth
    Guest

    Re: Rough idle when cold

    There was a recall on this (intake manifold gaskets) a couple of years ago.
    After the seals warm up, they seal, and you rough idle disappears.
    wth

    "Don Johnson" <net> wrote in message
    news:f%vnb.49983$.. 



  3. #3
    Penguin
    Guest

    Re: Rough idle when cold

    Was it a recall or a Technical Service Bulletin (TSB)?


    "wth" <com> wrote in message
    news:2aEnb.53373$.. 
    ago. 
    how 



  4. #4
    SizzleMP
    Guest

    Re: Rough idle when cold

    Take a look at the IAC valve before assuming it might be the intake gaskets.
    That is usually the culprit of bad idles. Take it out and clean it. If you
    still have the problem, then I would think it might be the intake gaskets.
     


  5. #5
    JaWise
    Guest

    Re: Rough idle when cold

    >Was it a recall or a Technical Service Bulletin (TSB)? 

    I think it was a TSB but they extended the warranty to 5yrs/60k miles for these
    parts.

  6. #6
    Zeus03
    Guest

    Re: Rough idle when cold

    What is the IAC valve? (Please pardon my ignorance.) I'm having the same
    problem.

    "SizzleMP" <com> wrote in message
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    gaskets. 
    ago. 
    drive 
    how 



  7. #7
    JaWise
    Guest

    Re: Rough idle when cold

    >What is the IAC valve? (Please pardon my ignorance.) I'm having the same 

    It's what regulates the idle speed on your engine. It's a little round "can"
    that varies the amount of air that goes through it to change your idle speed.

  8. #8
    SizzleMP
    Guest

    Re: Rough idle when cold

    It's usually mounted right on the intake manifold. On my 99 Explorer, if you
    remove the "SOHC" plastic shroud, it sits directly on top of the intake
    manifold( or plenum) similiar to where a carburator is usually mounted on an
    old car.
     




 

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