GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 1679872  Size: SH
  1. Remove the right front tire and wheel. Refer to Tire and Wheel Removal and Installation .
  2. Remove the splash shield. Refer to Engine Splash Shield Replacement .
  3. Disconnect the engine harness electrical connector (1) from the knock sensor.

  4. Object Number: 1587771  Size: SH
  5. Loosen and remove the bank 2 knock sensor (2).

Installation Procedure

Important:  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.

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1587771  Size: SH
  1. Install and tighten the bank 2 knock sensor (2).
  2. Tighten
    Tighten the sensor to 25 N·m (18 lb ft).


    Object Number: 1679872  Size: SH
  3. Connect the engine harness electrical connector (1) to the knock sensor.
  4. Install the splash shield. Refer to Engine Splash Shield Replacement .
  5. Install the right front tire and wheel. Refer to Tire and Wheel Removal and Installation .