Installation Procedure

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IMPORTANT: All gasket surfaces should be free of oil or other foreign material during assembly.

Lubricate the NEW knock sensor seals (1) with clean engine oil.
Install the knock sensor oil seals (1) into the engine valley cover (2).

Fig 1: View Of Knock Sensor Oil Seals & Cover

Courtesy of GENERAL MOTORS CORP.

Install the engine valley cover with a NEW gasket onto the engine block.
NOTE: Refer to Fastener Notice in Cautions and Notices.
Install the engine valley cover bolts.
Tighten: Tighten the bolts to 25 N.m (18 lb ft).

Fig 2: View Of Engine Valley Cover, Gasket & Bolts

Courtesy of GENERAL MOTORS CORP.

Install the knock sensors.
Tighten: Tighten the sensors to 20 N.m (15 lb ft).

Fig 3: View Of Knock Sensors

Courtesy of GENERAL MOTORS CORP.

Connect the knock sensor electrical connectors.
Push down on the rubber covers.

Fig 4: View Of Rubber Covers

Courtesy of GENERAL MOTORS CORP.

Install the intake manifold. Refer to Intake Manifold Replacement .