GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Yukon Denali 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Knock Sensor 1 Replacement

Removal Procedure

    Object Number: 1965285 Size: SH
  1. Remove the left front wheel and tire. Refer to Tire and Wheel Removal and Installation.
  2. Working through the wheel well opening, reposition the engine wiring harness sleeve (3).
  3. Disconnect the engine wiring harness electrical connector (4) from knock sensor.

    4. Object Number: 1402136 Size: SH
  4. Remove the knock sensor bolt (739) and knock sensor (718).

Installation Procedure

    Caution: Refer to Fastener Caution in the Preface section.


    Object Number: 1402136 Size: SH
  1. Position the knock sensor (718) to the engine block and install the knock sensor bolt (739).

    2. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 1965285 Size: SH
  2. Connect the engine wiring harness electrical connector (4) to knock sensor.
  3. Position the engine wiring harness sleeve (3) over the knock sensor electrical connection.
  4. Install the left front wheel and tire. Refer to Tire and Wheel Removal and Installation.