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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1444 (Engine Mechanical - 5.3L (Lm4)) >> 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 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 Chevrolet TrailBlazer, and 2004 Buick Rainier. 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.
    Fig 1: Rocker Arm Cover Gasket
    GM490696Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW rocker cover gasket (1) into the groove of the valve rocker arm cover.
    2. Fig 2: Valve Cover To Cylinder Head View
    GM260085Courtesy 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).

    5. Fig 3: Breather Crossover Tube View
    GM647793Courtesy of GENERAL MOTORS CORP.
  5. Install the PCV hose to the rocker arm cover.
    6. Fig 4: Identifying Ignition Coils
    GM824413Courtesy 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).

    9. Fig 5: Top Of Engine Wiring Harness View
    GM898326Courtesy 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.
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