Removal Procedure

The knock sensor (KS) is located at the top rear of the engine.

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
1. Disconnect the negative battery cable.
2. Remove the engine cover. Refer to Engine Cover Replacement in Interior Trim.
Fig 1: Locating Knock Sensor & Retaining Bolt
Courtesy of GENERAL MOTORS CORP.
3. Disconnect the KS harness connector (3).
4. Remove the KS bolt (1).
5. Remove the KS (2).