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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 220 (Engine Mechanical - 4.8L, 5.3L, 6.0L Or 6.2L (2 Of 5)) >> On-Vehicle Repair Instructions (1 Of 2) >> Engine Block Valley Cover Replacement >> Installation Procedure

Installation Procedure

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IMPORTANT: All gasket surfaces should be free of oil or other foreign material during assembly.
    Fig 1: View Of Oil Pressure Sensor & Washer
    GM1403317Courtesy 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. NOTE: Refer to Fastener Notice .
  2. Install a NEW washer (707) and the oil pressure sensor (706).

    Tighten:  Tighten the sensor to 35 N.m (26 lb ft).

    3. Fig 2: View Of Engine Valley Cover & Gasket
    GM1403316Courtesy of GENERAL MOTORS CORP.
  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).

    Tighten:  Tighten the bolts to 25 N.m (18 lb ft).

  7. Install the intake manifold. Refer to Intake Manifold Replacement (RPOs LY2/LY6)  or Intake Manifold Replacement (RPOs LC9/LMG/LY5/L76)  or Intake Manifold Replacement (RPO L92 - First Design)  or Intake Manifold Replacement (RPO L92 - Second Design) .
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