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Thread: 1990 DeVille idles rough

  1. #1
    patricko's Avatar
    patricko is offline Cadillac Owners Member
    Automobile(s): 1990 Cadillac DeVille
    Join Date
    Mar 2013
    Location
    Michigan
    Age
    21
    Posts
    27

    1990 DeVille idles rough

    Title says it all.

    When firing her up for the first time of the day, ususally she idles rough and struggles to accelerate. Lasts for about 30 minutes then runs smooth.

    Anyone have this issue? or know good ways to diagnose it?


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  3. #2
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
    Join Date
    Jun 2004
    Location
    Woodstock Ill.
    Age
    69
    Posts
    82,284

    Re: 1990 DeVille idles rough

    Sounds a lot like a vacuum leak.


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