Chevrolet Silverado / GMC Sierra. Manual — part 1959
Fig. 212: Removing/Installing Engine Valley Cover
Courtesy of GENERAL MOTORS CORP.
1. Remove the intake manifold. Refer to Intake Manifold Replacement (L92 - First
Design) or Intake Manifold Replacement (L92 - Second Design) or Intake Manifold
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Replacement (LY2 and LY6) or Intake Manifold Replacement (LH6, LMG, LY5 and
L76).
2. Remove the engine valley cover bolts (506).
3. Remove the engine valley cover (555) and gasket (556).
4. Remove the O-ring seals (537) from the cover.
Fig. 213: Removing/Installing Oil Pressure Sensor & Washer
Courtesy of GENERAL MOTORS CORP.
5. 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.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 214: Removing/Installing Oil Pressure Sensor & Washer
Courtesy of GENERAL MOTORS CORP.
1. Apply sealant GM P/N 12346004 (Canadian P/N 10953480) or equivalent, to the threads of
the oil pressure sensor.
2. Install a NEW washer (707) and the oil pressure sensor (706).
Tighten: Tighten the sensor to 35 N.m (26 lb ft).
NOTE:
Refer to Fastener Notice .
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
Fig. 215: Removing/Installing Engine Valley Cover
Courtesy of GENERAL MOTORS CORP.
3. Lubricate the O-ring seals with clean engine oil.
4. Install the O-ring seals (537) to the cover.
2008 Chevrolet Silverado 1500
2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado,
Sierra & Silverado
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