LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1670 (Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L - Repair Instructions - Off Vehicle (2 Of 3)) >> Valve Rocker Arm Cover Cleaning and Inspection

Valve Rocker Arm Cover Cleaning and Inspection

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Identifying Valve Rocker Arm Cover Components
    GM1559813Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Do not use the valve rocker arm cover gasket again. Install a NEW gasket during assembly.
    • Remove the ignition coils before cleaning the cover in solvent. Do not submerge the ignition coils in solvent.
    • Do not remove the oil fill tube from the covers unless service is required. If the tube is removed from the cover, install a NEW tube (423) and seal (422) during assembly.
  1. Inspect the oil fill tube (423) for a loose fit or damage.
  2. Inspect the covers (505) for the following conditions:
    • Scoring or damage to the gasket surfaces
    • Ventilation system passages for restrictions
    • Threaded bolt holes for damage or debris
scientia non olet · About LEMON Manuals