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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 38 (Engine Mechanical - 6.6L - Off Vehicle Repair Instructions (2 Of 3)) >> Off-Vehicle Repair Instructions (Part 2) >> Engine Flywheel Housing Cleaning and Inspection

Engine Flywheel Housing Cleaning and Inspection

WARNING: This page is about a different variant/trim than selected.
  1. Remove the O-rings from the flywheel housing and discard.
    Fig 1: Locating Flywheel Housing O-Rings
    GM663771Courtesy of GENERAL MOTORS CORP.
  2. Clean the flywheel housing.
  3. Clean the flywheel housing mating surfaces.
  4. Clean the flywheel housing O-ring sealing area.
  5. Inspect the flywheel housing for cracks.
  6. Inspect the flywheel housing mating surfaces for damage.
  7. Inspect the crankshaft rear oil seal bore for damage.
  8. Replace the flywheel housing if any damage is found.
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