GM Service Manual Online
For 1990-2009 cars only

Fuel Hoses/Pipes Replacement - Filter to Tank Short Wheel Base

Removal Procedure


    Object Number: 724381  Size: SH

    Caution: In order to reduce the risk of fire and personal injury observe the following items:

       • Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, do not attempt to repair the sections of the nylon fuel pipes
       • Do not hammer directly on the fuel harness body clips when installing new fuel pipes. Damage to the nylon pipes may result in a fuel leak.
       • Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures higher than 115°C (239°F) for more than one hour, or more than 90°C (194°F) for any extended period.
       • Apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings. This will ensure proper reconnection and prevent a possible fuel leak. (During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.)

    Notice: Do not attempt to straighten any kinked nylon fuel lines. Replace any kinked nylon fuel feed or return pipes in order to prevent damage to the vehicle.

  1. Remove the fuel tank. Refer to Fuel Tank Replacement .
  2. Disconnect the fuel feed (6) and fuel return (7) pipes from the fuel sender (3). Refer to Plastic Collar Quick Connect Fitting Service .
  3. Remove the fuel feed and fuel return pipes from the retainers (5).
  4. Cap the openings on the fuel tank.

Installation Procedure


    Object Number: 724381  Size: SH
  1. Remove the caps from the fuel tank.
  2. Connect the fuel feed (6) and return (7) pipes at the fuel sender. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Install the fuel feed and return pipes into the retainers (5).
  4. Install the fuel tank. Refer to Fuel Tank Replacement .

Fuel Hoses/Pipes Replacement - Filter to Tank Long Wheel Base

Removal Procedure


    Object Number: 786743  Size: SH

    Caution: In order to reduce the risk of fire and personal injury observe the following items:

       • Replace all nylon fuel pipes that are nicked, scratched or damaged during installation, do not attempt to repair the sections of the nylon fuel pipes
       • Do not hammer directly on the fuel harness body clips when installing new fuel pipes. Damage to the nylon pipes may result in a fuel leak.
       • Always cover nylon vapor pipes with a wet towel before using a torch near them. Also, never expose the vehicle to temperatures higher than 115°C (239°F) for more than one hour, or more than 90°C (194°F) for any extended period.
       • Apply a few drops of clean engine oil to the male pipe ends before connecting fuel pipe fittings. This will ensure proper reconnection and prevent a possible fuel leak. (During normal operation, the O-rings located in the female connector will swell and may prevent proper reconnection if not lubricated.)

    Notice: Do not attempt to straighten any kinked nylon fuel lines. Replace any kinked nylon fuel feed or return pipes in order to prevent damage to the vehicle.

  1. Remove the fuel tank. Refer to Fuel Tank Replacement .
  2. Disconnect the fuel feed (4) and fuel return (5) pipes from the fuel sender. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Remove the fuel feed and fuel return pipes from the retainers.
  4. Cap the openings on the fuel tank.

Installation Procedure


    Object Number: 786743  Size: SH
  1. Remove the caps from the fuel tank.
  2. Connect the fuel feed (4) and return (5) pipes at the fuel sender. Refer to Plastic Collar Quick Connect Fitting Service .
  3. Install the fuel feed and return pipes into the retainers.
  4. Install the fuel tank. Refer to Fuel Tank Replacement .