Need some direction
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Need some direction in Past Cadillac Vehicle Discussion; Hi guys I've got an 1994 Cadillac Deville with 132,000 miles and last week the gas pedal started pulsating when ...
  1. #1
    damondknapp is offline Cadillac Owners Member
    Join Date
    Jan 2013
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    Need some direction

    Hi guys I've got an 1994 Cadillac Deville with 132,000 miles and last week the gas pedal started pulsating when I turned off the ignition. I visually saw that the Idle Speed Control moving in and out. So I just replaced it and I still have the same problem. I'm going to go to my last resort of disconnecting the battery for a day to see if I can't manually reset the computer. But wondering what to do if that doesn't work. Please help she's been a great car for me. Been so happy with her I went out a bought a 1995 Cadillac Deville.

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  3. #2
    Jfarr is offline Cadillac Owners Member
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    Re: Need some direction

    They're going to ask you if you've pulled the codes, what they are and their definitions. (^Sticky^)

  4. #3
    Ranger's Avatar
    Ranger is offline Cadillac Owners Member
    Automobile(s): White Diamond '03 DHS (with DTS floor shift)
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    Jun 2004
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    Woodstock Ill.
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    Re: Need some direction

    I am not sure, but I think it is just setting itself up for the next start. I remember my '92 doing that and it never gave me any problems. Unless you are having an idle problem, I wouldn't worry about it.

  5. #4
    basscatt's Avatar
    basscatt is offline Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 03 SLS, two 02 DHS's
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    Feb 2004
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    Minnesota
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    Re: Need some direction

    ALWAYS - check for Diagnostic Trouble Codes -

    if you don't know how - go here and read the ENTIRE post -

    http://www.cadillacforums.com/forums...odes-dtcs.html

    if you have any codes - post them here -
    ALONG WITH THEIR DEFINITIONS -
    --------------------

    I suspect a problem with the TPS - Throttle Position Sensor -
    either out of adjustment - or defective -

  6. #5
    carnut is offline Cadillac Owners Master
    Automobile(s): 1988 Allante' (sold), 1984 Eldorado, 84 Sedan DeVille
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    Feb 2003
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    california
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    Re: Need some direction

    The ISC needs to be adjusted once installed. It must be retracted thru on board diagnostics then a measured clearance is set by screwing in the nose switch shaft. That why you need a factory manual! The ISC should only extend just prior to start up and retract as the car is shut off.

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