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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> Engine Mechanical >> Engine Mechanical - 4.3L >> Repair Instructions >> Off-Vehicle Repair Instructions >> Valve Rocker Arm Cover Cleaning and Inspection

Valve Rocker Arm Cover Cleaning and Inspection

CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
  1. Clean the valve rocker arm cover in cleaning solvent.
  2. Dry the valve rocker arm cover with compressed air.
  3. Inspect the valve rocker arm cover for the following:
    Fig 1: Inspecting Valve Rocker Arm Cover
    G01643989Courtesy of GENERAL MOTORS CORP.
    • Damage to the PCV valve grommet (1)
    • Damage to the bolt holes (2)

      A damaged valve rocker arm cover may interfere with the valve rocker arms.

    • Damage to the exterior of the valve rocker arm cover (3)
    • Gouges or damage to the sealing surface (4)
    • Damage to the oil fill tube grommet (5)
    • Restrictions to the ventilation system passages
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