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Home >> Chevrolet >> 2004 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Engine Mechanical (Repair Instructions -- 3 Of 3) -- 4.8L, 5.3L & 6.0L) >> Repair Instructions (Off-Vehicle - Part 3) >> Valve Rocker Arm Cover Installation - Left

Valve Rocker Arm Cover Installation - Left

WARNING: This page is about a different variant/trim than selected.
    IMPORTANT:
    • All gasket surfaces should be free of oil or other foreign material during assembly.
    • DO NOT use the valve rocker arm cover gasket again.
    • The valve rocker arm cover bolt grommets may be used again.
    • If the vapor vent grommet has been removed from the valve rocker arm cover, install a NEW vapor vent gourmet during assembly.
  1. Install a NEW cover gasket (504) into the left valve rocker arm cover.
    2. Fig 1: View Of Valve Rocker Arm Cover Gasket
    GM1272820Courtesy of GENERAL MOTORS CORP.
  2. Install the valve rocker arm cover onto the cylinder head.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the cover bolts with grommets.

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

    4. Fig 2: View Of Valve Rocker Arm Cover
    GM1277108Courtesy of GENERAL MOTORS CORP.
  4. Apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the threads of the bracket bolts.
  5. Install the ignition coils and bracket assembly and bolts.

    Tighten:  Tighten the ignition coil and bracket assembly bolts to 12 N.m (106 lb in).

    6. Fig 3: View Of Ignition Coil, Bracket Assembly, Wire Harness & Bolts (Left)
    GM1342458Courtesy of GENERAL MOTORS CORP.
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