GM Service Manual Online
For 1990-2009 cars only

Knock Sensor Replacement Left

Removal Procedure


    Object Number: 1530339  Size: SH
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
  2. Remove the electrical connector (1) for the knock sensor (3).
  3. Remove the retaining bolt (2) for the knock sensor (3).
  4. Remove the knock sensor (3).

Installation Procedure


    Object Number: 1530339  Size: SH
  1. Position the knock sensor (3) on the engine block.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the retaining bolt (2) for the knock sensor (3).
  4. Tighten
    Tighten the knock sensor retaining bolt to 20 N·m (15 lb ft).

  5. Reconnect the electrical connector (1).
  6. Lower the vehicle.

Knock Sensor Replacement Right

Removal Procedure


    Object Number: 1251373  Size: SH
  1. Remove the right front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  2. Remove the inner wheel well. Refer to Front Wheelhouse Liner Replacement in Body Front End.

  3. Object Number: 1530341  Size: SH
  4. Remove the retaining bolt for the knock sensor (KS) (1).
  5. Remove the KS (2).
  6. Remove the electrical connector for the KS (3).

Installation Procedure


    Object Number: 1530341  Size: SH
  1. Reconnect the KS electrical connector.
  2. Position the KS on the engine block.
  3. Notice: Refer to Fastener Notice in the Preface section.

  4. Install the retaining bolt for the KS.
  5. Tighten
    Tighten the KS retaining bolt to 20 N·m (15 lb ft).


    Object Number: 1251373  Size: SH
  6. Install the right wheelhouse liner. Refer to Front Wheelhouse Liner Replacement in Body Front End.
  7. Install the right front tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.