GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2009 🢒 H2 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Knock Sensor 2 Replacement

Removal Procedure

    Object Number: 1698087 Size: SH
  1. Lift and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the engine wiring harness electrical connector (2) from knock sensor.

    3. Object Number: 1402140 Size: SH
  3. Remove the knock sensor bolt (739) and knock sensor (718).

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1402140 Size: SH
  1. Position the knock sensor (718) to the engine block and install the knock sensor bolt (739). Tighten the bolt to 25 N·m (18 lb ft)

    2. Object Number: 1698087 Size: SH
  2. Connect the engine wiring harness electrical connector (2) to knock sensor.