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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1020 (Engine Mechanical - 6.6L (LLY)) >> Repair Instructions >> On-Vehicle Repair Instructions >> Engine Flywheel Housing Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system. Refer to Draining and Filling Cooling System (without HP2) in Engine Cooling.
  2. Remove the crankshaft rear oil seal. Refer to Crankshaft Rear Oil Seal Replacement .
  3. Remove the turbocharger oil return pipe nuts from the top of the flywheel housing.
    4. Fig 1: View Of Turbocharger Oil Return Pipe Nuts
    GM1334852Courtesy of GENERAL MOTORS CORP.
  4. Remove the upper oil pan. Refer to Oil Pan Replacement - Upper .
  5. Remove the oil filter.
    6. Fig 2: View Of Oil Filter
    GM660299Courtesy of GENERAL MOTORS CORP.
  6. Remove the flywheel housing bolts, denoted by the black circles.
  7. Separate the flywheel from the cylinder block using J 37228  .
  8. Remove the flywheel housing.
    9. Fig 3: View Of Engine Rear Cover Bolts & Flywheel Housing To Upper Oil Pan Bolts
    GM660335Courtesy of GENERAL MOTORS CORP.
  9. Remove the turbocharger oil return pipe gasket from the flywheel housing.
  10. Remove the oil cooler adapter bolts.
  11. Remove the oil cooler adapter and gaskets.
    12. Fig 4: View Of Oil Cooler Adapter
    GM1334855Courtesy of GENERAL MOTORS CORP.
  12. If required, clean and inspect the flywheel housing. Refer to Engine Flywheel Housing Cleaning and Inspection .
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