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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 995 (Engine Mechanical - 8.1L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the engine sight shield. Refer to Engine Sight Shield Replacement .
  2. Remove the connector position assurance (CPA) retainer from the ignition coil electrical connector.
  3. Disconnect the ignition coil harness electrical connector (4).
    4. Fig 1: View Of Generator, Injector Harness, Ignition Coil Harness, ETC & Purge Valve Solenoid Electrical Connectors
    GM1235689Courtesy 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.
  4. Remove the spark plug wires from the spark plugs and ignition coils.
    5. Fig 2: View Of Spark Plug Wires (Left)
    GM843846Courtesy of GENERAL MOTORS CORP.
  5. Remove the valve rocker arm cover bolts.
  6. Remove the valve rocker arm cover.
    IMPORTANT: Valve rocker arm cover gaskets are reusable. Replace the gasket only if damaged.
    7. Fig 3: View Of Valve Rocker Arm Cover (Left)
    GM843849Courtesy of GENERAL MOTORS CORP.
  7. Inspect the valve rocker arm cover gasket for cuts or damage.
  8. Clean and inspect the valve rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection .
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