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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 721 (Engine Mechanical - 8.1L (On-Vehicle)) >> Repair Instructions >> Valve Rocker Arm Cover Replacement - Left >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Left Valve Rocker Arm, Cover & Bolts
    GM470890Courtesy of GENERAL MOTORS CORP.
  1. Install a NEW valve rocker arm cover gasket if the gasket was removed from the valve rocker arm cover.
  2. Install the valve rocker arm cover.
  3. Install the valve rocker arm cover bolts.
    4. Fig 2: View Of Valve Rocker Arm Cover Bolts Tightening Sequence
    GM677858Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  4. Tighten the valve rocker arm cover bolts in the sequence shown, using two passes.

    Tighten: 

    • Tighten the valve rocker arm cover bolts a first pass to 6 N.m (53 lb in).
    • Tighten the valve rocker arm cover bolts a final pass to 12 N.m (106 lb in).

    5. Fig 3: View Of Spark Plug Wire
    GM470666Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Fully install the spark plug wire by pushing on the exposed end of the spark plug boot. Do not push the spark plug wire on to the spark plug by using the metal heat shield.
  5. Install the spark plug wires to the spark plugs and ignition coils.
    6. Fig 4: Locating Engine Electrical Connectors
    GM750525Courtesy of GENERAL MOTORS CORP.
  6. Connect the ignition coil harness electrical connector (3).
  7. Install the CPA retainer to the ignition coil electrical connector (3).
  8. Install the engine sight shield. Refer to Engine Sight Shield Replacement .
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