Removal Procedure
- Remove the intake manifold. Refer to
Intake Manifold Replacement
.
- Remove the engine valley cover bolts (506).
- Remove the engine valley cover (555) and gasket (556).
- Remove the O-ring seals (537) from the cover.
- Remove the oil pressure sensor (706) and washer (707).
Installation Procedure
Important: All gasket surfaces should be free of oil or other foreign material during assembly.
- Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the threads
of the oil pressure sensor.
Notice: Refer to Fastener Notice in the Preface section.
- Install a NEW washer (707) and the oil pressure sensor (706).
Tighten
Tighten the sensor to 35 N·m (26 lb ft).
- Lubricate the O-ring seals with clean engine oil.
- Install the O-ring seals (537) to the cover.
- Set the engine valley cover (555) onto the engine.
- Install the engine valley cover bolts (506).
Tighten
Tighten the bolts to 25 N·m (18 lb ft).
- Install the intake manifold. Refer to
Intake Manifold Replacement
.