knock sensor diagram

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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, knock sensor diagram in Past Cadillac Vehicle Discussion; Does anyone have the diagram for the knock sensor? 99 deville...
  1. #1
    jgallo is offline Cadillac Owners Member
    Automobile(s): 1999 deville de elegance
    Join Date
    Apr 2012

    knock sensor diagram

    Does anyone have the diagram for the knock sensor? 99 deville

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  3. #2
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 65500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: knock sensor diagram

    Simple circuit to the PCM - this is basically IT- the sensor itself is in the block valley, by cylinders 3 - 5. When it "hears" a specific frequency of engine sound the PCM retards spark slightly from the current advance value to stop the knock.

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