Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Yukon XL, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Knock Sensor 1 Electrical Connector

Courtesy of GENERAL MOTORS CORP.

Drain the cooling system/engine block. Refer to Draining and Filling Cooling System in Engine Cooling.
Disconnect the knock sensor electrical connector (4).

Fig 2: View Of Knock Sensor 1

Courtesy of GENERAL MOTORS CORP.

Remove the knock sensor.