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Home >> Buick >> 2004 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls 3.8L (Introduction, Service & Replacement) >> Repair Instructions >> Knock Sensor (KS) 2 Replacement >> Installation Procedure
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Installation Procedure

NOTE: Refer to Fastener Notice in Cautions and Notices.
IMPORTANT: DO NOT apply thread sealant to sensor threads. The sensor is coated at factory and applying additional sealant will affect the sensors ability to detect detonation.
    Fig 1: View Of Knock Sensor (2)
    GM381311Courtesy of GENERAL MOTORS CORP.
  1. Install the knock sensor (4).

    Tighten:  Tighten the knock sensor to 19 N.m (14 lb ft).

  2. Install the knock sensor heat shield.

    Tighten:  Tighten the bolts to 60 N.m (44 lb ft).

  3. Connect the knock sensor electrical connector.
  4. Install the transaxle. Refer to TRANSMISSION REPLACEMENT .
  5. Fill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
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