GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Turn the ignition OFF.
  2. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
  3. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  4. Object Number: 1404028  Size: SH
  5. Remove the knock sensor (KS) electrical connector bracket bolt (2) located near the oil filter (3).
  6. Remove the KS bolt (1).

  7. Object Number: 1394033  Size: SH
  8. Disconnect the KS electrical connector.

Installation Procedure


    Object Number: 1394033  Size: SH
  1. Connect the KS electrical connector.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1404028  Size: SH
  3. Install the KS and the knock sensor bolt.
  4. Tighten
    Tighten the KS bolt to 23 N·m (17 lb ft).

  5. Install the KS electrical connector bracket and the bracket bolt (2).
  6. Tighten
    Tighten the KS electrical connector bracket bolt (2) to 65 N·m (48 lb ft).

  7. Lower the vehicle.