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  1. #1
    prerunner1982's Avatar
    prerunner1982 is offline Level: Uber Jeep Cherokee Trailer Queen
    Join Date
    Jun 2009
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    Edmond, OK
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    Default Re: Cold rough idle issue.

    Yes and that was likely going to be our next step, but wanted to see what others thought as well.
    1993 2 door 4x4 4.0 5 speed
    1997 4 door 4x2 4.0 auto RIP 6/6/2016
    2000 4 door 4x2 4.0 auto


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  2. #2
    Join Date
    Mar 2009
    Location
    Katy, Texas
    Posts
    27,332

    Default Re: Cold rough idle issue.

    My fuel pressure would drop to almost zero about 15 seconds after I turned off the engine. On first start up it would run rough for about 30 seconds, maybe. I replaced the submerged fuel assembly and all the problems went away.

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