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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1302 (Engine Mechanical (Repair Instructions 1 Of 3) - 5.7L) >> Repair Instructions (On-Vehicle & Off-Vehicle - Part 1 >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Engine Wiring Harness Generator Lead Nut & Generator Electrical Connector
    GM651874Courtesy of GENERAL MOTORS CORP.
  1. Remove the fuel feed hose. Refer to Fuel Hose/Pipes Replacement - Engine Compartment in Engine Controls - 5.7 L.
  2. Disconnect the generator electrical connector (1).
  3. Remove the engine wiring harness generator lead nut (3) and lead.
    4. Fig 2: AIR Hose Clamp & Check Valve
    GM651875Courtesy of GENERAL MOTORS CORP.
  4. Remove the secondary air injection (AIR) hose clamp.
  5. Disconnect the AIR hose (3) from the check valve.
    6. Fig 3: Left Rocker Arm Cover & PCV Valve Pipe
    GM379366Courtesy of GENERAL MOTORS CORP.
  6. If equipped with the regular production option (RPO) LS1 engine, remove the positive crankcase ventilation (PCV) valve pipe from the left rocker cover.
    7. Fig 4: Spark Plug Wire
    GM74069Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the spark plug wires from the ignition coils.
    • Twist the spark plug wire boot 1/2 turn.
    • Pull only on the boot in order to remove the wire from the ignition coil.
  8. Disconnect the ignition coil wire harness main electrical connector.
    9. Fig 5: EVAP Canister Purge Tube
    GM651868Courtesy of GENERAL MOTORS CORP.
  9. Remove the evaporative emission (EVAP) canister purge tube from the intake manifold.
  10. Remove the EVAP canister purge tube from the EVAP canister purge solenoid valve.
  11. Remove the EVAP canister purge tube.
    12. Fig 6: Fuel Feed Pipe
    GM651865Courtesy of GENERAL MOTORS CORP.
  12. Disconnect the EVAP canister purge tube from the EVAP canister purge solenoid valve.
  13. Disconnect the EVAP canister purge tube from the fuel feed pipe.
  14. Remove the EVAP canister purge tube.
    15. Fig 7: Electrical Connectors
    GM651871Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the EVAP canister purge solenoid valve electrical connector (2).
    16. Fig 8: EVAP Canister Purge Solenoid Valve & Bracket
    GM419407Courtesy of GENERAL MOTORS CORP.
  16. Remove the EVAP canister purge solenoid valve from the bracket.
    17. Fig 9: Ignition Coil Bracket & Studs
    GM697215Courtesy of GENERAL MOTORS CORP.
  17. Remove the ignition coil bracket studs.
  18. Remove the ignition coil bracket.
    19. Fig 10: Valve Cover To Cylinder Head View
    GM260085Courtesy of GENERAL MOTORS CORP.
  19. Loosen the valve rocker arm cover bolts.
  20. Remove the valve rocker cover.
    21. Fig 11: Rocker Arm Cover Gasket
    GM490696Courtesy of GENERAL MOTORS CORP.
  21. Remove the gasket (1) from the rocker cover. Discard the OLD gasket.
  22. Clean and inspect the rocker arm cover. Refer to Valve Rocker Arm Cover Cleaning and Inspection .
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