GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1608498  Size: SH
  1. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the right knock sensor electrical connector (2).

  3. Object Number: 1800587  Size: SH
  4. Loosen and remove the knock sensor.

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1800587  Size: SH

    Note:  DO NOT apply thread sealant to the sensor threads. The sensor threads are coated at the factory. Applying additional sealant affects the sensors ability to detect detonation.

  1. Install and tighten the knock sensor.
  2. Tighten
    Tighten the sensor to 25 N·m (18 lb ft).


    Object Number: 1608498  Size: SH
  3. Connect the right knock sensor electrical connector (2).
  4. Lower the vehicle.