Removal & Installation

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2002 GMC Savana Special, 2002 GMC Savana Camper Special, 2002 GMC Savana, 2002 Chevrolet RV Cutaway, and 2002 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.

Knock Sensor (KS) is located on side of engine block. See Fig 1-Fig 3 . Disconnect negative battery cable. On 4.3L, remove distributor. See DISTRIBUTOR . Disconnect wiring harness connector from KS. Remove KS. Coat sensor threads with sealant prior to installation. To install, reverse removal procedure. Tighten KS to specification. See TORQUE SPECIFICATIONS .

Fig 1: Locating Knock Sensor (4.3L)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Locating Knock Sensor (5.0L & 5.7L, & 8.1L Knock Sensor No. 2)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Locating Knock Sensor No. 1 (8.1L)

Courtesy of GENERAL MOTORS CORP.