GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 HUMMER 🢒 2008 🢒 H3 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Knock Sensor 2 Replacement

Removal Procedure

    Object Number: 1899202 Size: SH
  1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle.
  2. Disconnect the engine wiring harness electrical connector (3) from the knock sensor.

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

Installation Procedure

    Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1402140 Size: SH
  1. Position the knock sensor (718) to the engine block and install the bolt (739).

    2. Tighten
    Tighten the bolt to 20 N·m (15 lb ft).


    Object Number: 1899202 Size: SH
  2. Connect the engine wiring harness electrical connector (3) to the knock sensor.
  3. Lower the vehicle.