GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 37228 Seal Cutter

Removal Procedure


    Object Number: 1334852  Size: SH
  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Remove the upper oil pan. Refer to Upper Oil Pan Replacement .
  3. Remove the turbocharger oil return pipe nuts from the top of the flywheel housing.
  4. Remove the turbocharger oil return pipe studs from the flywheel housing, if necessary.
  5. Remove the oil cooler adapter nuts from the side of the flywheel housing.
  6. Remove the oil cooler adapter studs from the flywheel housing, if necessary.

  7. Object Number: 1334853  Size: SH

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

  8. Remove the flywheel housing bolts.
  9. Separate the flywheel housing from the cylinder block using the J 37228 .
  10. Remove the flywheel housing.
  11. Remove and discard the turbocharger oil return pipe and oil cooler adapter gaskets.

  12. Object Number: 1334855  Size: SH
  13. Remove the oil cooler adapter bolts.
  14. Remove the oil cooler adapter and gaskets.

Installation Procedure


    Object Number: 1334855  Size: SH
  1. Install the oil cooler adapter with a NEW gasket to the oil cooler.
  2. Notice: Refer to Fastener Notice in the Preface section.

  3. Install the oil cooler adapter to oil cooler bolts.
  4. Tighten
    Tighten the bolts to 21 N·m (15 lb ft).


    Object Number: 1334853  Size: SH
  5. Install NEW gaskets to the flywheel housing for the turbocharger oil return pipe and oil cooler adapter.
  6. Install the flywheel housing to the cylinder block.
  7. Install the flywheel housing bolts.
  8. Tighten
    Tighten the bolts to 80 N·m (60 lb ft).


    Object Number: 1334852  Size: SH
  9. Install the oil cooler adapter studs to the flywheel housing, if necessary.
  10. Tighten
    Tighten the studs to 10 N·m (89 lb in).

  11. Install the oil cooler adapter nuts to the side of the flywheel housing.
  12. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).

  13. Install the turbocharger oil return pipe studs, if necessary.
  14. Tighten
    Tighten the studs to 10 N·m (89 lb in).

  15. Install the turbocharger oil return pipe nuts.
  16. Tighten
    Tighten the nuts to 25 N·m (18 lb ft).

  17. Install the upper oil pan. Refer to Upper Oil Pan Replacement .
  18. Install the engine cover. Refer to Engine Cover Replacement .