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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1018 (Engine Mechanical - 4.3L) >> Repair Instructions >> 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 and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: Do not reuse the cover gasket or the valve rocker arm cover bolt grommets.
  1. Install a NEW rocker arm cover gasket.
    2. Fig 1: View Of Rocker Arm Cover And Gasket
    GM328573Courtesy of GENERAL MOTORS CORP.
  2. Install NEW rocker arm cover bolt grommets, if necessary.
  3. Install the rocker arm cover.
    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 2: Installing Rocker Arm Cover
    GM869731Courtesy of GENERAL MOTORS CORP.
  5. Position the engine wiring harness.
  6. Connect the engine wiring harness clips.
  7. Connect the following electrical connectors:
    • The ignition coil (1)
    • The ignition coil drive (2)
    • The generator (3)
    8. Fig 3: Ignition Coil, Ignition Coil Driver, Ground Nut/Cable & Generator Electrical Connectors
    GM782177Courtesy of GENERAL MOTORS CORP.
  8. Position the heater hoses.
  9. Install the heater outlet to the hose clip.
    10. Fig 4: Installing Heater Outlet To Hose Clip
    GM869719Courtesy of GENERAL MOTORS CORP.
  10. Align the hinge clip with the lip on the throttle body.

    In order to install the air cleaner outlet duct, pivot the air cleaner outlet duct downward until the mounting stud is through the hole.

    11. Fig 5: View Of Air Cleaner Outlet Duct
    GM489176Courtesy of GENERAL MOTORS CORP.
  11. Install the air cleaner adapter nut.
    12. Fig 6: View Of Air Cleaner Adapter Nut
    GM489179Courtesy of GENERAL MOTORS CORP.
  12. Install the positive crankcase ventilation (PCV) hose.
    13. Fig 7: Installing PCV Hose
    GM701705Courtesy of GENERAL MOTORS CORP.
  13. Tighten the air cleaner outlet duct clamp at the MAF/IAT sensor.
    14. Fig 8: View Of Air Cleaner Outlet Duct Clamp
    GM360851Courtesy of GENERAL MOTORS CORP.
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