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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 148 (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: 

  1. Install a NEW rocker cover gasket (1) into the valve rocker arm cover.
    Fig 1: Installing Rocker Cover Gasket
    G02078479Courtesy of GENERAL MOTORS CORP.
  2. Install the valve rocker arm cover onto the cylinder head.
  3. Install new rocker arm cover grommets, if necessary.
    CAUTION: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
  4. Install the rocker arm cover bolts and grommets.

    Tighten 

    Tighten the valve rocker arm cover bolts to 12 N.m (106 lb in).

    Fig 2: Installing Valve Rocker Arm Cover, Bolts & Grommets
    G02078480Courtesy of GENERAL MOTORS CORP.
  5. Install the vent hose to the valve rocker arm cover.
    Fig 3: Installing Vent Hose
    G02078481Courtesy of GENERAL MOTORS CORP.
  6. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the threads of the bracket bolts.
  7. Install the ignition coils and bracket to the rocker arm cover.
  8. Install the ignition coil bracket studs to the rocker cover.

    Tighten 

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

    Fig 4: Installing Ignition Coils, Bracket & Bracket Studs
    G02078482Courtesy of GENERAL MOTORS CORP.
  9. Install the spark plug wires to the ignition coils.
  10. Position the engine harness, if necessary.
  11. Install the harness clips (2).
  12. Connect the main electrical connector (1) feeding the ignition coils.
  13. Install the CPA lock.
    Fig 5: Installing Harness Clips & Connecting Main Electrical Connector
    G02078483Courtesy of GENERAL MOTORS CORP.
  14. Install the oil fill tube. Refer to Oil Level Indicator and Tube Replacement .
  15. Install the upper transmission fill tube.
  16. Install the engine cover. Refer to Engine Cover Replacement in Interior Trim .