Sierra 3500 Denali 2WD V8-6.0L (2011)
Note: All gasket surfaces should be free of oil or other foreign material during assembly.
1. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the threads of the oil pressure sensor.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
2. Install a NEW washer (707) and the oil pressure sensor (706).
Tighten the sensor to 35 Nm (26 lb ft).
3. Lubricate the O-ring seals with clean engine oil.
4. Install the O-ring seals (537) to the cover.
5. Set the engine valley cover (555) onto the engine.
6. Install the engine valley cover bolts (506).