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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1496 (Engine Mechanical - 5.3L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Rocker Arm Cover Replacement - Left >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Envoy XL and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • All gasket surfaces should be free of oil an/or other foreign material during assembly.
  • DO NOT reuse the valve rocker arm cover gasket.
  • The valve rocker arm cover bolt grommets may be reused.
  • If the PCV valve grommet has been removed from the rocker cover, install a NEW grommet during assembly.
  1. Install a NEW rocker cover gasket (1) into the groove of the valve rocker arm cover.
    Fig 1: Installing Rocker Cover Gasket Into Groove Of Valve Rocker Arm Cover
    G02129120Courtesy of GENERAL MOTORS CORP.
  2. Install the valve rocker arm cover onto the cylinder head.
  3. Install new rocker arm cover grommets, if necessary.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Install the rocker arm cover bolts.

    Tighten 

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

    Fig 2: Installing Valve Rocker Arm Cover Onto Cylinder Head
    G02129121Courtesy of GENERAL MOTORS CORP.
  5. Install the PCV hose to the rocker arm cover.
    Fig 3: Installing PCV Hose To Rocker Arm Cover
    G02129122Courtesy 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. If necessary, install the ignition coils and bracket to the rocker arm cover.
  8. If necessary, install the ignition coil bracket studs to the rocker arm cover.

    Tighten 

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

    Fig 4: Installing Ignition Coils And Bracket To Rocker Arm Cover
    G02129123Courtesy 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.
  12. Connect the main electrical connector (5) to the ignition coil wire harness.
  13. Install the CPA lock.
    Fig 5: Connecting Main Electrical Connector To Ignition Coil Wire Harness
    G02129124Courtesy of GENERAL MOTORS CORP.
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