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Home >> Chevrolet >> 2004 >> Impala LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System 3.8L (Introduction) >> 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.
  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. Fig 1: Installing KS Sensor (2)
    GM381311Courtesy of GENERAL MOTORS CORP.
  5. Install the transaxle. Refer to TRANSMISSION REPLACEMENT .
  6. Fill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.