GM Service Manual Online
For 1990-2009 cars only

    Object Number: 1335581  Size: SH

    Caution: Do not twist the turbocharger oil feed pipe. Twisting of the feed pipe will result in the collapse and deformation of the plastic pipe, restricting oil flow and causing turbocharger damage. During turbocharger replacement, gently push the oil feed pipe towards the front of the engine to clear the turbocharger. Assistance may be required to keep the pipes clear of the turbocharger during removal or installation.

  1. Install the turbocharger oil supply line to the engine block.
  2. Caution: Refer to Fastener Caution in the Preface section.

    Note: Lubricate the washers with diesel fuel before installing.

  3. Install the turbocharger oil supply line eye bolt and washers. Tighten the turbocharger oil supply line eye bolt to 26 N·m (19 lb ft).
  4. Install the turbocharger lower heat shield to the engine block.

  5. Object Number: 1335579  Size: SH
  6. Install the turbocharger assembly with the oil return pipe.
  7. Install the turbocharger mounting bolts and tighten to 108 N·m (80 lb ft).

  8. Object Number: 1335578  Size: SH

    Note: Use care not to damage this hose during the procedure.

  9. Install the turbocharger cooling outlet hose and tighten hose clamp.

  10. Object Number: 1457469  Size: SH

    Note: If the cooling outlet hose eye bolts were removed, install the longer bolt (1) with two holes, in the top location. Install the shorter bolt (2) in the lower location.

  11. Install the cooling outlet hose eye bolts.

  12. Object Number: 1335577  Size: SH

    Caution: Do not twist the turbocharger oil feed pipe. Twisting of the feed pipe will result in the collapse and deformation of the plastic pipe, restricting oil flow and causing turbocharger damage. During turbocharger replacement, gently push the oil feed pipe towards the front of the engine to clear the turbocharger. Assistance may be required to keep the pipes clear of the turbocharger during removal or installation.

  13. Install the oil supply line eye bolt and washers to the turbocharger.
  14. Lubricate the washers with diesel fuel before installing. Tighten the oil supply hose eye bolt to 26 N·m (19 lb ft).


    Object Number: 1335576  Size: SH
  15. Install the turbocharger heat shield.
  16. Install the turbocharger upper heat shield bolts and tighten to 10 N·m (89 lb in).