Knock Sensor Replacement

Fig 1: Knock Sensor

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Raise and properly support the vehicle. Refer to Lifting and Jacking the Vehicle .
1	Knock Sensor Fasteners (Qty: 2) CAUTION: Refer to Fastener Caution . Tighten 25 N.m (18 lb ft)
2	Knock Sensors (Qty: 2) Procedure Disconnect the electrical wiring harness connectors from the knock sensors.