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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1354 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Engine Valley Cover Cleaning and Inspection

Engine Valley Cover Cleaning and Inspection

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IMPORTANT:
  • Do not use the valley cover knock sensor oil seals again. Install NEW oil seals during assembly.
  • Do not use the valley cover gasket again. Install a NEW gasket during assembly.
  1. Remove the knock sensor oil seals (1) from the valley cover (2).
  2. Clean the valley cover in solvent.
    CAUTION: Refer to SAFETY GLASSES CAUTION .
  3. Dry the valley cover with compressed air.
  4. Inspect the gasket sealing surfaces for excessive scratches or gouging. Refer to Replacing Engine Gaskets .
  5. Inspect the valley cover oil seal bores for excessive scratches or gouging.
    Fig 1: Removing Knock Sensor Oil Seals From Valley Cover
    G02107123Courtesy of GENERAL MOTORS CORP.
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