GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Cobalt 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Knock Sensor Replacement

Removal Procedure

    Object Number: 1656089 Size: SH
  1. Disconnect the knock sensor (KS) electrical connector (3).

    2. Object Number: 1578476 Size: SH
  2. Remove the KS bolt.
  3. Remove the KS.

Installation Procedure

Note: Rotate the pigtail 90 degrees from vertical before securing the fastener.


    Object Number: 1578476 Size: SH
  1. Install the KS.

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

  2. Install the KS bolt and tighten to 25 N·m (18 lb ft).

    3. Object Number: 1656089 Size: SH
  3. Connect the KS electrical connector (3).