Cold Idle Problem

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Cadillac Allante Forum Discussion, Cold Idle Problem in Past Cadillac Vehicle Discussion; I have a 89 allante. it has the 4.5 non- northstar. im 18 and this is my first one, i ...
  1. #1
    joetighe is offline Cadillac Owners Member
    Automobile(s): 1990 Cadillac Allante and a Black 2005 Cadillac Escalade ESV
    Join Date
    May 2013
    New Hampshire

    Cold Idle Problem

    I have a 89 allante. it has the 4.5 non- northstar. im 18 and this is my first one, i have always wanted one and now i have one! sometimes when the car is cold the idle will sit at 1000 rpms than drop and almost die but it is systematic. i will do the same thing 1000 almost die 1000 almost die. until it hits half way on the temp gauge. Any help would be greatly appreciated!

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  3. #2
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
    Automobile(s): 2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
    Join Date
    Sep 2010
    East Boston MA.

    First step is to pull codes. Go to either the Eldorado/Seville, or FWD Deville/Fleetwood forums, and read the "sticky" thread on how to pull codes. List any codes you may find, AND THEIR DEFINITIONS, here (there's a link to code definitions within the sticky).

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