GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 Express 🢒 Engine 🢒 Engine Mechanical - 6.6L 🢒 Fuel Pipes and Fuel Rail Removal

    Object Number: 1335584 Size: SH
  1. Remove the fuel feed pipe attaching nuts and bolts.
  2. Remove the fuel feed pipe.

    3. Object Number: 1335586 Size: SH
  3. Disconnect the fuel rail balance pipe from fuel rails.
  4. Remove the fuel rail balance pipe bolts.
  5. Remove the fuel rail balance pipe.

    6. Object Number: 1335588 Size: SH
  6. Remove the left fuel return hose.

    7. Object Number: 1335592 Size: SH
  7. Remove the right fuel return hose.

    8. Object Number: 1335595 Size: SH
  8. Disconnect the fuel hoses from the fuel injector pump.

    9. Object Number: 1335596 Size: SH
  9. Remove the distribution block and fuel line assembly bolts.
  10. Remove the distribution block and fuel line assembly.

    11. Object Number: 1335598 Size: SH
  11. Remove the fuel pipe assembly bracket bolts.
  12. Remove the fuel pipe assembly bracket.

    13. Object Number: 1335600 Size: SH
  13. Remove the coolant pipe bolt and nut.
  14. Remove the coolant pipe.

    15. Object Number: 1335603 Size: SH
  15. Remove the left fuel rail to pump pipe.

    16. Object Number: 1650670 Size: SH
  16. Remove the EGR mounting bracket bolts.
  17. Remove the EGR mounting brackets.

    18. Object Number: 1336209 Size: SH
  18. Using compressed air to blow away any debris between the fuel injector line and the fittings. Wipe clean the fittings of debris.

    19. Caution: DO NOT use compressed air to clean debris from the fuel injector inlet after the fuel line is removed. Using compressed air can allow debris to enter the fuel injector inlet and damage the fuel injector.

  19. Spray lithium grease, GM P/N 12346293 or equivalent, between the fuel injector line and fitting to contain any debris during removal.

    20. Object Number: 1335608 Size: SH
  20. Remove the left fuel injector pipes.

    21. Object Number: 1335614 Size: SH
  21. Remove the right fuel injector pipes.

    22. Object Number: 1335616 Size: SH
  22. Remove the left fuel rail and bracket bolts.
  23. Remove the left fuel rail and bracket.

    24. Object Number: 1335617 Size: SH
  24. Remove the right fuel rail bolts.
  25. Remove the right fuel rail.