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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 681 (Engine Mechanical - 8.1L (On-Vehicle)) >> Repair Instructions >> Valve Rocker Arm Cover Replacement - Right >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Air Cleaner Outlet Duct
    GM700979Courtesy of GENERAL MOTORS CORP.
  1. Remove the engine sight shield. Refer to Engine Sight Shield Replacement .
  2. Loosen the clamps at the throttle body and air cleaner.
  3. Remove the air cleaner outlet duct.
    4. Fig 2: View Of Ignition Coil, ECT And MAP Sensor Electrical Connectors
    GM750529Courtesy of GENERAL MOTORS CORP.
  4. Remove the connector position assurance (CPA) retainer from the ignition coil electrical connector (2).
  5. Disconnect the ignition coil harness electrical connector (2).
  6. Disconnect the engine coolant temperature (ECT) sensor electrical connector (3).
    7. Fig 3: View Of Spark Plug Wires (Right)
    GM470704Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire or the wire could be damaged.
  7. Remove the spark plug wires from the spark plugs and ignition coils.
    8. Fig 4: Right Valve Rocker Arm, Cover & Bolts
    GM470897Courtesy of GENERAL MOTORS CORP.
  8. Remove the valve rocker arm cover bolts.
  9. Remove the valve rocker arm cover.
    IMPORTANT: Valve rocker arm cover gaskets are reusable. Replace the gasket only if damaged.
  10. Inspect the valve rocker arm cover gasket for cuts or damage.
  11. Clean and inspect the valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection in Engine Mechanical - 8.1L Unit Repair.
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