98 DeVille rough starts occasionally
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, 98 DeVille rough starts occasionally in Past Cadillac Vehicle Discussion; My 98 DeVille D'Elegance starts fine when it's cold. Starts fine when it's warm, but in between, it's a rough ...
  1. #1
    hprall is offline Cadillac Owners Member
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    My 98 DeVille D'Elegance starts fine when it's cold. Starts fine when it's warm, but in between, it's a rough starter. If it sits 1-20 minutes, or longer than an hour, it starts right up. From approx. 21 minutes to 59 minutes, it starts rough. 176k on the odometer. DIC offers nothing. Ideas? What could cause this?

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  3. #2
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    Hard to start, or starts and runs rough?

    Have you read the "sticky" thread on how to pull codes?

  4. #3
    hprall is offline Cadillac Owners Member
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    Quote Originally Posted by MoistCabbage
    Hard to start, or starts and runs rough?

    Have you read the "sticky" thread on how to pull codes?
    I have pulled the codes. No clues there. It's hard to start during that brief period, but runs fine once it's started.

  5. #4
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 98 DeVille rough starts occasionally

    Have you checked for a leaky FPR?

  6. #5
    hprall is offline Cadillac Owners Member
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    Quote Originally Posted by ranger
    have you checked for a leaky fpr?
    fpr?

  7. #6
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
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    Re: 98 DeVille rough starts occasionally

    Fuel Pressure Regulator. Do a search. It's been discussed a million times and is so easy Stevie Wonder could do it.
    CadillacLuke24 likes this.

  8. #7
    hprall is offline Cadillac Owners Member
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    Quote Originally Posted by Ranger
    Fuel Pressure Regulator. Do a search. It's been discussed a million times and is so easy Stevie Wonder could do it.
    I'll check it out and let you know. Thanks!

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