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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1188 (Engine Mechanical - 5.7L) >> 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 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel feed hose. Refer to FUEL LINE DISCONNECT FITTINGS .
  2. Disconnect the generator electrical connector (1).
  3. Remove the engine wiring harness generator lead nut (3) and lead.
    Fig 1: Disconnecting Generator Electrical Connector
    G01970436Courtesy of GENERAL MOTORS CORP.
  4. Remove the secondary air injection (AIR) hose clamp.
  5. Disconnect the AIR hose (3) from the check valve.
    Fig 2: Disconnecting Air Hose From Check Valve
    G01970437Courtesy 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.
    Fig 3: Removing Positive Crankcase Ventilation (PCV) Valve Pipe From Left Rocker Cover
    G01970438Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the spark plug wires from the ignition coils.
    Fig 4: Disconnecting Spark Plug Wires From Ignition Coils
    G01970439Courtesy of GENERAL MOTORS CORP.
    • 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. 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.
    Fig 5: Removing Evaporative Emission (EVAP) Canister Purge Tube
    G01970440Courtesy 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.
    Fig 6: Disconnecting EVAP Canister Purge Tube
    G01970441Courtesy of GENERAL MOTORS CORP.
  15. Disconnect the EVAP canister purge solenoid valve electrical connector (2).
    Fig 7: Disconnecting EVAP Canister Purge Solenoid Valve Electrical Connector
    G01970442Courtesy of GENERAL MOTORS CORP.
  16. Remove the EVAP canister purge solenoid valve from the bracket.
    Fig 8: Removing EVAP Canister Purge Solenoid Valve
    G01970443Courtesy of GENERAL MOTORS CORP.
  17. Remove the ignition coil bracket studs.
  18. Remove the ignition coil bracket.
    Fig 9: Removing Ignition Coil Bracket
    G01970444Courtesy of GENERAL MOTORS CORP.
  19. Loosen the valve rocker arm cover bolts.
  20. Remove the valve rocker cover.
    Fig 10: Removing Valve Rocker Arm Cover
    G01970445Courtesy of GENERAL MOTORS CORP.
  21. Remove the gasket (1) from the rocker cover. Discard the OLD gasket.
    Fig 11: Removing Gasket From Rocker Cover
    G01970446Courtesy of GENERAL MOTORS CORP.
  22. Clean and inspect the rocker arm cover. Refer to VALVE ROCKER ARM COVER CLEANING AND INSPECTION .
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