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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1032 (Engine Mechanical - 6.6L (Lb7) (Repair Instructions 2 Of 4)) >> Repair Instructions (Off-Vehicle - Part 2) >> Engine Flywheel Housing Removal

Engine Flywheel Housing Removal

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.

Tools Required 

J 37228  Seal Cutter

  1. Remove the turbocharger oil return pipe nuts from the top of the flywheel housing.
  2. Remove the turbocharger oil return pipe studs.
    3. Fig 1: View Of Oil Return Pipe Studs
    GM660327Courtesy of GENERAL MOTORS CORP.
  3. Remove the oil cooler adapter nuts.
  4. Remove the oil cooler adapter studs.
    5. Fig 2: View Of Oil Cooler Adapter Studs
    GM660329Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The upper oil pan must be removed before removing the flywheel housing.
  5. Remove the flywheel housing bolts (denoted by a black circle).
    6. Fig 3: View Of Flywheel Housing Bolt Locations
    GM660335Courtesy of GENERAL MOTORS CORP.
  6. Separate the flywheel housing from the cylinder block using J 37228  .
  7. Remove the flywheel housing.
  8. Remove the turbocharger oil return pipe gasket from the flywheel housing.
  9. Remove the oil cooler adapter bolts.
  10. Remove the oil cooler adapter with gaskets (1, 2).
    11. Fig 4: View Of Oil Cooler Adapter & Gaskets
    GM663919Courtesy of GENERAL MOTORS CORP.
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