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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.6L & 3.2L - Introduction >> Repair Instructions >> Knock Sensor (KS) 1 Replacement >> Removal Procedure

Removal Procedure

    Fig 1: View Of Knock Sensor Pigtail, Knock Sensor Pigtail & Bracket
    GM785857Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the knock sensor pigtail (1) from the electrical connector (2) and bracket.
  2. Remove the generator. Refer to Generator Replacement (LA3, LY9) or Generator Replacement (LS6) or Generator Replacement (LY7) in Engine Electrical.
    3. IMPORTANT: The knock sensor pigtail is guided past the rear timing belt cover by several retaining clips. Note the positioning of the knock sensor pigtail.
  3. Remove the knock sensor pigtail from the retaining clips on the rear timing belt cover.
    4. Fig 2: Identifying Knock Sensor On Engine
    GM21520Courtesy of GENERAL MOTORS CORP.
  4. Remove the bolt in the center of the knock sensor (1).
  5. Remove the knock sensor (1) from the engine block.
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