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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)) >> Engine Front Cover Cleaning and Inspection

Engine Front 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: View Of Engine Front Cover O-Ring
    GM663614Courtesy of GENERAL MOTORS CORP.
  1. Remove the O-ring (1) from the engine front cover.
  2. Remove the oil pressure relief valve from the engine front cover.
  3. Clean the engine front cover.
  4. Clean the engine front cover mating surfaces.
  5. Inspect the engine front cover mating surfaces for damage.
  6. Inspect the engine front cover O-ring sealing surface for damage.
  7. Inspect the crankshaft front oil seal bore for damage.
  8. Replace the engine front cover if any damage is found.
    9. Fig 2: View Of Pressure Relief Valve O-Ring
    GM793901Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  9. Install the oil pressure relief valve with a new O-ring and tighten to 39 N.m (29 lb ft).
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