GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

The fuel system hose/pipes are serviceable individually or as a complete fuel/brake bundle assembly, the following procedure is servicing the fuel hose/pipes individually.

    Caution: Refer to Gasoline/Gasoline Vapors Caution in the Preface section.

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .

  2. Object Number: 1392557  Size: SH
  3. Disconnect the feed hose/pipe (3) from the engine compartment line connection. Refer to Metal Collar Quick Connect Fitting Service .
  4. Plug the open ports to prevent fuel loss and contamination.
  5. Disconnect the evaporative emission (EVAP) hose from the engine compartment line connection (2). Refer to Plastic Collar Quick Connect Fitting Service .
  6. Remove the lines from the engine compartment retainer (1).
  7. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.

  8. Object Number: 1272549  Size: SH
  9. Refer to Plastic Collar Quick Connect Fitting Service and Metal Collar Quick Connect Fitting Service in order to disconnect the following quick connect fittings from the chassis bundle:
  10. • The fuel filter (2)
    • The fuel hose
    • The fuel EVAP hose
    • Plug the open outlet ports to prevent fuel loss and contamination.

    Object Number: 818896  Size: SH
  11. Pull the locking mechanism (1) outward in order to disengage the fuel/brake bundle chassis pipe retainers from the rail.

  12. Object Number: 785812  Size: MH
  13. Open the retainers (1) located at the forward portion of the rail in order to remove the chassis hose/pipes.
  14. Complete the following in order to remove the chassis hose/pipes from the retainers (2) located at the rearward portion of the rail:
  15. 10.1. Pull the retainers (2) free from the rail.
    10.2. Open the retainers (2) at the top.
    10.3. Remove the chassis hose/pipes from the retainers (2).
  16. Pull downward in order to disconnect the fuel/brake bundle chassis pipe retainer from the underbody.
  17. Remove the bolt securing the fuel filter bracket to the body.

  18. Object Number: 818897  Size: SH
  19. Remove the bolts securing the transmission support to the underbody, from the right side only.

  20. Object Number: 818898  Size: SH
  21. Pull the right side transmission support down only enough to allow removal of the chassis fuel hose/pipes.
  22. Partially lower the hoist only enough to simultaneously gain access to both the front and rear portions of the chassis fuel hose/pipes.
  23. With the aid of an assistant, carefully guide the chassis fuel hose/pipes down through the engine compartment, removing from the bottom.

Installation Procedure

  1. Clean any of the contamination from the male line ends and apply a few drops of clean engine oil.
  2. With the aid of an assistant, carefully guide the chassis fuel hose/pipes up through the engine compartment into position.

  3. Object Number: 818898  Size: SH
  4. Pull the right side transmission support down only enough to allow installation of the chassis fuel hose/pipes.

  5. Object Number: 818897  Size: SH
  6. Install the bolts securing the transmission support to the underbody. Refer to Transmission Support Replacement in Frame and Underbody.

  7. Object Number: 785812  Size: MH
  8. Install the bolt securing the fuel filter bracket to the body.
  9. Tighten
    Tighten the fuel filter bracket bolt to 9 N·m (80 lb in).

  10. Push upward in order to connect the fuel/brake bundle chassis pipe retainer to the underbody.
  11. Complete the following in order to install the chassis hose/pipes to the retainers (2) located at the rearward portion of the rail:
  12. 7.1. Install the chassis hose/pipes into the retainers (2).
    7.2. Close the retainers (2) at the top.
    7.3. Insert the retainers (2) into the rail.
  13. Install the chassis hose/pipes into the retainers (1) located at the forward portion of the rail.
  14. Close the retainers.

  15. Object Number: 818896  Size: SH
  16. Push the locking mechanism (1) inward in order to engage the fuel/brake bundle chassis pipe retainers to the rail.

  17. Object Number: 1272549  Size: SH
  18. Refer to Metal Collar Quick Connect Fitting Service and Plastic Collar Quick Connect Fitting Service in order to connect the following quick connect fittings to the chassis bundle:
  19. • The fuel filter (2)
    • The fuel hose
    • The fuel EVAP hose
  20. Lower the vehicle.

  21. Object Number: 1392557  Size: SH
  22. Insert the chassis hose/pipes into the retainers (1).
  23. Close the retainer.
  24. Connect the EVAP quick connect fitting (2). Refer to Plastic Collar Quick Connect Fitting Service .
  25. Connect the fuel feed pipe (3) to the engine compartment line connection. Refer to Metal Collar Quick Connect Fitting Service .
  26. Check the fuel system for leaks.
  27. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 5.7L.