Removal & Installation (4.3L)

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CAUTION: Before servicing any electrical component, the ignition key must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.

NOTE: The Knock Sensor (KS) is located at the top rear of the engine.

Disconnect the negative battery cable. Remove the engine cover. Disconnect the KS harness connector (1). See Fig 1. Remove the KS bolt (2). Remove the KS (3). To install, reverse removal procedure. See TORQUE SPECIFICATIONS .

Fig 1: Removing Knock Sensor (4.3L)

Courtesy of GENERAL MOTORS CORP.