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Removal Procedure

Fig 1: View Of Knock Sensor, Intake Manifold Support Bracket, And Bolts

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.

Disconnect the negative battery cable.
Remove the intake manifold support bracket bolts.
Remove the intake manifold support bracket.

Fig 2: View Of Knock Sensor

Courtesy of GENERAL MOTORS CORP.

Disconnect the knock sensor (KS) electrical connector.
Remove the KS bolt.
Remove the KS.