GM Service Manual Online
For 1990-2009 cars only

Knock Sensor Replacement Bank 1

Removal Procedure


    Object Number: 1480894  Size: SH

    Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the knock sensor electrical connector (3).
  3. Remove the knock sensor mounting bolt (1).
  4. Remove the knock sensor (2).

Installation Procedure


    Object Number: 1480894  Size: SH
  1. Position the knock sensor (2) to the engine block.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the knock sensor mounting bolt (1).
  4. Tighten
    Tighten the knock sensor mounting bolt to 20 N·m (15 lb ft).

  5. Connect the knock sensor electrical connector (3).
  6. Lower the vehicle.

Knock Sensor Replacement Bank 2

Removal Procedure


    Object Number: 1480896  Size: SH

    Caution: To avoid any vehicle damage, serious personal injury or death when major components are removed from the vehicle and the vehicle is supported by a hoist, support the vehicle with jack stands at the opposite end from which the components are being removed and strap the vehicle to the hoist.

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Disconnect the knock sensor electrical connector (3).
  3. Remove the knock sensor mounting bolt (1).
  4. Remove the knock sensor (2).

Installation Procedure


    Object Number: 1480896  Size: SH
  1. Position the knock sensor (2) to the engine.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the knock sensor mounting bolt (1).
  4. Tighten
    Tighten the knock sensor mounting bolt 1 to 20 N·m (15 lb ft).

  5. Connect the knock sensor electrical connector (3).
  6. Lower the vehicle.