GM Service Manual Online
For 1990-2009 cars only

Removal 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.)

  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief in Engine Controls - 8.1L.
  2. Open the hood .
  3. Remove the left side splash shield. Refer to Wheelhouse Splash Shield Replacement in Body Front End.
  4. Important: 

       • Clean all the fuel pipe connections and the surrounding areas before disconnecting the pipes in order to avoid possible contamination of the fuel system.
       • Cap all fuel pipes to avoid possible contamination of the fuel system.


    Object Number: 816380  Size: SH
  5. Disconnect the fuel feed line from the fuel filter pipe. Refer to Metal Collar Quick Connect Fitting Service in Engine Controls - 6.6L (LB7).
  6. Unclip the fuel filter pipe retaining clip.
  7. Remove the fuel filter pipe from the fuel filter head .

Installation Procedure


    Object Number: 816380  Size: SH
  1. Install the fuel feed pipe to the fuel filter head. Refer to Metal Collar Quick Connect Fitting Service in Engine Controls - 6.6L (LB7).
  2. Connect the fuel feed pipe to the retainer.
  3. Connect the fuel feed line to the fuel feed pipe.
  4. Inspect for fuel leaks.