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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1354 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Right >> Installation Procedure

Installation Procedure

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IMPORTANT:
  • All gasket surfaces should be free of oil or other foreign material during assembly.
  • DO NOT reuse the valve rocker arm cover gasket.
  • If the oil fill tube has been removed from the rocker arm cover, install a NEW fill tube during assembly.
  1. Lubricate the O-ring seal of the NEW oil fill tube with clean engine oil.
  2. Insert the NEW oil fill tube into the rocker arm cover.

    Rotate the tube clockwise until locked in the proper position.

  3. Install the oil fill cap into the tube.

    Rotate the cap clockwise until locked in the proper position.

    Fig 1: Inserting Oil Fill Tube
    G02106656Courtesy of GENERAL MOTORS CORP.
  4. Install a NEW rocker cover gasket (1) into the valve rocker arm cover lip.
    Fig 2: Installing Rocker Cover Gasket
    G02106657Courtesy of GENERAL MOTORS CORP.
  5. Install the valve rocker arm cover.
    NOTE: Refer to FASTENER NOTICE .
  6. Tighten the rocker arm cover bolts.

    Tighten 

    Tighten the bolts to 12 N.m (106 lb in).

    Fig 3: Installing Valve Rocker Arm Cover
    G02106658Courtesy of GENERAL MOTORS CORP.
  7. Install the PCV hose.
    Fig 4: Installing PCV Hose
    G02106659Courtesy of GENERAL MOTORS CORP.
  8. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489), or equivalent to the threads of the bracket bolts.
  9. Install the ignition coil bracket.
  10. Install the ignition coil bracket studs.

    Tighten 

    Tighten the studs to 12 N.m (106 lb in).

    Fig 5: Installing Ignition Coil Bracket & Studs
    G02106660Courtesy of GENERAL MOTORS CORP.
  11. Install the heater hose bracket and nut.

    Tighten 

    Tighten the nut to 9 N.m (80 lb in).

  12. Position the surge tank/heater hoses to the heater hose bracket.
    Fig 6: Installing Heater Hose Bracket & Nut
    G02106661Courtesy of GENERAL MOTORS CORP.
  13. Install the spark plug wires to the ignition coils.
  14. Position the engine harness, if necessary.
  15. Install the harness clips (2).
  16. Connect the main electrical connector (1) feeding the ignition coils.
  17. Install the CPA lock.
  18. Install the engine sight shield, if required. Refer to Engine Sight Shield Replacement (4.8L, 5.3L, and 6.0L Engines)  or Engine Sight Shield Replacement (6.0L Engine w/RPOs Y91 and Z88) .
    Fig 7: Main Electrical Connector & Harness Clips
    G02106662Courtesy of GENERAL MOTORS CORP.
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