GM Service Manual Online
For 1990-2009 cars only

Tools Required

    • J 43178 Fuel Line Disconnect Tool
    • J 44581 Fuel Line Disconnect Tool

Removal Procedure

  1. Remove the engine cover. Refer to Engine Cover Replacement .
  2. Remove the charge air cooler inlet pipe. Refer to Charged Air Cooler Hoses/Pipes Replacement .
  3. Remove the center intake manifold. Refer to Intake Manifold Tube Replacement .
  4. Using the J 43178 and J 44581 , disconnect the fuel feed and return pipes.

  5. Object Number: 1734168  Size: SH
  6. Remove the fuel line bracket bolt.

  7. Object Number: 1728393  Size: SH
  8. Remove the fuel line bracket bolt (1).

  9. Object Number: 1728447  Size: SH
  10. Remove the fuel line bracket bolt.

  11. Object Number: 1732300  Size: SH
  12. Disconnect the fuel rail temperature (FRT) sensor electrical connector.

  13. Object Number: 1734290  Size: SH
  14. Compress the clamp and disconnect the hose from the fuel return line.
  15. Disconnect the left fuel return hose from the fuel return pipe.

  16. Object Number: 1734312  Size: SH
  17. Disconnect the right fuel return hose from the fuel return pipe.

  18. Object Number: 1731671  Size: SH
  19. Remove the fuel return pipe from the vehicle.

Installation Procedure


    Object Number: 1731671  Size: SH
  1. Install the fuel return pipe from the vehicle.

  2. Object Number: 1734312  Size: SH
  3. Connect the right fuel return hose to the fuel return pipe.

  4. Object Number: 1734290  Size: SH
  5. Connect the left fuel return hose to the fuel return pipe.
  6. Compress the clamp and connect the hose to the fuel return line.

  7. Object Number: 1732300  Size: SH
  8. Connect the FRT sensor electrical connector.
  9. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 1728447  Size: SH
  10. Install the fuel line bracket bolt.
  11. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 1728393  Size: SH
  12. Install the fuel line bracket bolt (1).
  13. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).


    Object Number: 1734168  Size: SH
  14. Install the fuel line bracket bolt.
  15. Tighten
    Tighten the bolt to 25 N·m (18 lb ft).

  16. Connect the fuel feed and return pipes.
  17. Install the center intake manifold. Refer to Intake Manifold Tube Replacement .
  18. Install the charge air cooler inlet pipe. Refer to Charged Air Cooler Hoses/Pipes Replacement .
  19. Prime the fuel system. Refer to Fuel System Priming .
  20. Start the engine.
  21. If the engine does not start, repeat the above step.

  22. Inspect the fuel system for fuel leaks.
  23. Install the engine cover. Refer to Engine Cover Replacement .