GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 2028277  Size: SH
  1. Remove the air cleaner outlet pipe bracket bolt (1).
  2. Remove the air cleaner outlet pipe clamp (2).
  3. Remove the air cleaner outlet pipe (3) from the turbocharger.
  4. Remove the catalytic converter. Refer to Catalytic Converter Replacement.

  5. Object Number: 2027646  Size: SH
  6. Remove the turbocharger oil feed pipe bolt (1).
  7. Remove the 2 turbocharger oil feed pipe bolt gaskets (5).
  8. Raise the vehicle by its full height. Refer to Lifting and Jacking the Vehicle.
  9. Remove the turbocharger oil feed pipe bolt (3).
  10. Remove the 2 turbocharger oil feed pipe bolt gaskets (2).

  11. Object Number: 2028247  Size: SH
  12. Remove the charge air cooler inlet air tube bolt (4).
  13. Remove the 2 hose clamps (3).
  14. Remove the 3 air charge air cooler inlet air tube bolts (1).
  15. Remove the charge air cooler inlet air tube (2).

  16. Object Number: 2027648  Size: SH
  17. Remove the 2 turbocharger oil return hose clamps (1, 2).
  18. Remove the turbocharger oil return hose (3).
  19. Lower the vehicle by its full height. Refer to Lifting and Jacking the Vehicle.

  20. Object Number: 2027658  Size: SH
  21. Remove the turbocharger upper nut (1).
  22. Remove the 2  turbocharger lower nuts (4).
  23. Remove the turbocharger (2).
  24. Remove the turbocharger gasket (3).
  25. Disassemble the turbocharger. Refer to Turbocharger Disassemble.

Installation Procedure

  1. Assemble the turbocharger. Refer to Turbocharger Assemble.

  2. Object Number: 2027658  Size: SH

    Note: Ensure that the turbocharger surface and the exhaust manifold surface are clear of old gasket material and rust.

  3. Install a NEW turbocharger gasket (3).
  4. Install the turbocharger (2).
  5. Caution: Refer to Fastener Caution in the Preface section.

  6. Install 2 NEW turbocharger lower nuts (4) and tighten to  34 N·m (26 lb ft).
  7. Install the NEW turbocharger upper (1) nut and tighten to  34 N·m (26 lb ft).
  8. Raise the vehicle by its full height. Refer to Lifting and Jacking the Vehicle.

  9. Object Number: 2027648  Size: SH
  10. Install the turbocharger oil return hose (3).
  11. Install the 2 turbocharger oil return hose clamps (1, 2).

  12. Object Number: 2028247  Size: SH
  13. Install the charge air cooler inlet air tube (2).
  14. Install the 3 charge air cooler inlet air tube bolts (1) and tighten to  10 N·m (89 lb in).
  15. Install the 2 hose clamps (3).
  16. Install the charge air cooler inlet air tube bolt (4) and tighten to  10 N·m (89 lb in).

  17. Object Number: 2027646  Size: SH
  18. Install the turbocharger oil feed pipe (4).
  19. Install NEW turbocharger oil feed pipe bolt gaskets (2).
  20. Install the turbocharger oil feed pipe bolt (3) and tighten to  23 N·m (17 lb ft).
  21. Lower the vehicle by its full height. Refer to Lifting and Jacking the Vehicle.
  22. Install NEW turbocharger oil feed pipe bolt gaskets (5).
  23. Install the turbocharger oil feed pipe bolt (1) and tighten to  23 N·m (17 lb ft).
  24. Install the catalytic converter. Refer to Catalytic Converter Replacement.

  25. Object Number: 2028277  Size: SH
  26. Install the air cleaner outlet pipe (3) to the turbocharger.
  27. Install the air cleaner outlet pipe clamp (2).
  28. Install the air cleaner outlet pipe bracket bolt (1) and tighten to  5 N·m (45 lb in).