GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 STS 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Knock Sensor Replacement - Bank 1

Removal Procedure

    Object Number: 945742 Size: SH
  1. Turn the ignition OFF.
  2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
  3. Reposition the wiring harness heat shield to obtain access.
  4. Remove the knock sensor (KS) electrical connector.

    5. Object Number: 860801 Size: SH
  5. Remove the KS bolt.
  6. Remove the KS.

Installation Procedure

    Object Number: 860801 Size: SH
  1. Install the KS.

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the KS bolt and tighten to 23 N·m (17 lb ft).

    3. Object Number: 945742 Size: SH
  3. Install the KS electrical connector.
  4. Install the wiring harness heat shield to the original position.
  5. Lower the vehicle.