GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Notice: Cap the fittings and plug the holes when servicing the fuel system in order to prevent dirt and other contaminants from entering the open pipes and passages.

Important: Always maintain cleanliness when servicing fuel system components.

  1. Remove the fuel tank. Refer to Fuel Tank Replacement .

  2. Object Number: 531026  Size: SH
  3. Disconnect the fuel pipes at the fuel sender assembly. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Cap the fuel pipes as needed to stop any fuel leakage.
  5. Remove the fuel pipe attaching hardware.
  6. Note the position of the fuel pipes and the fuel pipe attaching hardware for installation.
  7. Remove the fuel pipes.

Installation Procedure

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.


    Object Number: 531026  Size: SH
  1. Install the new fuel feed and fuel return pipes and the fuel pipe attaching hardware as noted during removal.
  2. Remove the caps from the fuel pipes.
  3. Connect the fuel feed and fuel return pipe quick-connect fittings at the fuel sender assembly. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Inspect and make sure all of the fuel pipe clips, and fasteners are properly installed.
  5. Install the fuel tank. Refer to Fuel Tank Replacement .