Removal Procedure

Fig 1: View Of Knock Sensor And Electrical Connector

GM1256162

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Battery Disconnect Caution .

Disconnect the negative battery cable.
Raise and suitably support the vehicle.
Disconnect electrical connector at the knock sensor.

Fig 2: View Of Knock Sensor And Mounting Bolt

GM1256163

Courtesy of GENERAL MOTORS CORP.

Remove the bolt and the knock sensor