High idle
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, High idle in Past Cadillac Vehicle Discussion; My '93 Sixty seems to idle high half of the time and it just comes and goes as it pleases. ...
  1. #1
    tru504187211's Avatar
    tru504187211 is offline Cadillac Owners Connoisseur
    Automobile(s): 2001 Deville; 1990 Brougham
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    High idle

    My '93 Sixty seems to idle high half of the time and it just comes and goes as it pleases. There are no codes, possibly though because they may have been cleared by my mechanic, but maybe not. Computer problem possibly?

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  3. #2
    RBraczyk's Avatar
    RBraczyk is offline Cadillac Owners Connoisseur
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    Re: High idle

    It may be your TPS

  4. #3
    BeelzeBob's Avatar
    BeelzeBob is offline I'm a Cadillac Fanatic!
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    Re: High idle

    I would guess the idle speed control motor....specifically the closed throttle switch inside the idle speed control motor.

  5. #4
    tru504187211's Avatar
    tru504187211 is offline Cadillac Owners Connoisseur
    Automobile(s): 2001 Deville; 1990 Brougham
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    Re: High idle

    I'm guessing this would be a bbob question, why would this happen? And why the sometimes, but not others?

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