GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1698082  Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. If equipped, remove the oil pan skid plate and bolts.

  3. Object Number: 1877018  Size: SH
  4. Reposition the knock sensor sleeve (3) down, away from the knock sensor.
  5. Disconnect the engine wiring harness electrical connector (1) from the knock sensor.

  6. Object Number: 1877020  Size: SH
  7. Remove the knock sensor bolt and sensor.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1877020  Size: SH
  1. Position the knock sensor to the engine block and install the bolt.
  2. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 1877018  Size: SH
  3. Connect the engine wiring harness electrical connector (1) to the knock sensor.
  4. Position the knock sensor sleeve (3) up and over the knock sensor.

  5. Object Number: 1698082  Size: SH
  6. If equipped, position the oil pan skid plate and install the bolts.
  7. Tighten
    Tighten the bolts to 28 N·m (21 lb ft).

  8. Lower the vehicle.