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Home >> Chevrolet >> 2012 >> Tahoe PPV >> Repair and Diagnosis >> External Pages >> Different car >> Section 1677 (Engine Mechanical - 6.6L (LMM) - Repair Instructions - Off Vehicle (2 Of 3)) >> Valve Rocker Arm Cover Cleaning and Inspection - Lower

Valve Rocker Arm Cover Cleaning and Inspection - Lower

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: Inspecting Lower Valve Rocker Arm Cover
    GM1413510Courtesy of GENERAL MOTORS CORP.
  1. Remove the grommets.
  2. Clean the lower valve rocker arm cover. Remove any sludge or other deposits.
  3. Clean the lower valve rocker arm cover mating surfaces.
  4. Inspect the lower valve rocker arm cover for cracks or other damage.
  5. Inspect the lower valve rocker arm cover mating surfaces for damage.
  6. Replace the lower valve rocker arm cover if any damage is found.
  7. Inspect the grommets for damage.
  8. Replace the grommets if any damage is found.
  9. Install the grommets.
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