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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1019 (Engine Mechanical - 4.8L, 5.3L & 6.0L (Repair Instructions - 1 Of 3)) >> Repair Instructions (On-Vehicle & Off-Vehicle - Part 1) >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Right >> Installation Procedure

Installation 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.
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. Fig 1: View Of Oil Fill Tube
    GM647798Courtesy of GENERAL MOTORS CORP.
  3. Install the oil fill cap into the tube.

    Rotate the cap clockwise until locked in the proper position.

  4. Install a NEW rocker cover gasket (1) into the valve rocker arm cover lip.
    5. Fig 2: Rocker Arm Cover Gasket
    GM490696Courtesy of GENERAL MOTORS CORP.
  5. Install the valve rocker arm cover.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  6. Tighten the rocker arm cover bolts.

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

    7. Fig 3: View Of Valve Rocker Arm Cover (Right)
    GM832211Courtesy of GENERAL MOTORS CORP.
  7. Install the PCV hose.
    8. Fig 4: View Of Throttle Body To Valve Rocker Arm Cover PCV Hose
    GM1235681Courtesy 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. Fig 5: View Of Ignition Coil Bracket (Right)
    GM832187Courtesy of GENERAL MOTORS CORP.
  10. Install the ignition coil bracket studs.

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

  11. If equipped with RPO HP2, position the cable (w/bracket) and install the 3-phase cable bracket to the studs.
  12. Install the 3-phase cable bracket nuts (2).

    Tighten:  Tighten the nuts to 15 N.m (11 lb ft).

    13. Fig 6: View Of 3-Phase Cable Bracket & Nuts
    GM1237062Courtesy of GENERAL MOTORS CORP.
  13. If equipped with RPO HP2, install the 3-phase cable to the SGCM.
  14. Install the 3-phase cable nuts to the SGCM.

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

  15. Install the SGCM cover and bolts.

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

    16. Fig 7: View Of SGCM, Cover & Bolts
    GM1237061Courtesy of GENERAL MOTORS CORP.
  16. If equipped with RPO HP2, position the auxiliary heater water pump and install it onto the studs.
  17. Install the auxiliary heater water pump bracket nuts (4).

    Tighten:  Tighten the bolts to 15 N.m (11 lb ft).

    18. Fig 8: View Of Auxiliary Heater Water Pump, Bracket & Nuts
    GM1285626Courtesy of GENERAL MOTORS CORP.
  18. Install the heater hose bracket and nut.

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

    19. Fig 9: View Of Heater Hose Bracket Nut
    GM688018Courtesy of GENERAL MOTORS CORP.
  19. Position the surge tank/heater hoses to the heater hose bracket.
  20. Install the spark plug wires to the ignition coils.
  21. Position the engine harness, if necessary.
  22. Install the harness clips (1).
  23. Connect the main electrical connector (4) feeding the ignition coils.
  24. Install the CPA lock (5).
    25. Fig 10: View Of CPA Retainer, Harness Clips, ETC, Coil Harness & Fuel Injectors Electrical Connectors
    GM1235686Courtesy of GENERAL MOTORS CORP.
  25. 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) .
  26. If equipped with RPO HP2, connect the ESB. Refer to Energy Storage Box (ESB) Service Disconnect/Connect (5.3L Engine w/RPO HP2) in Engine Electrical.
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