GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 37228 Seal Cutter


    Object Number: 660327  Size: SH
  1. Remove the turbocharger oil return pipe nuts from the top of the flywheel housing.
  2. Remove the turbocharger oil return pipe studs.

  3. Object Number: 660329  Size: SH
  4. Remove the oil cooler adapter nuts.
  5. Remove the oil cooler adapter studs.

  6. Object Number: 660335  Size: SH

    Important: The upper oil pan must be removed before removing the flywheel housing.

  7. Remove the flywheel housing bolts (denoted by a black circle).

  8. Object Number: 663919  Size: SH
  9. Separate the flywheel housing from the cylinder block using J 37228 .
  10. Remove the flywheel housing.
  11. Remove the turbocharger oil return pipe gasket from the flywheel housing.
  12. Remove the oil cooler adapter bolts.
  13. Remove the oil cooler adapter with gaskets (1, 2).