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.)

Caution: Do not breathe the air through the EVAP component tubes or hoses. The fuel vapors inside the EVAP components may cause personal injury.

Important: To prevent EVAP system contamination, clean the pipe connections before disassembly.

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

  2. Object Number: 727162  Size: SH
  3. Disconnect the EVAP pipe quick-connect fitting from the fuel sender assembly.
  4. Remove the fuel tank vapor pipe from the attaching hardware.

Installation Procedure

  1. Install the fuel tank vapor pipe to the attaching hardware.

  2. Object Number: 727162  Size: SH
  3. Connect the EVAP pipe quick-connect fitting to the fuel sender assembly.
  4. Install the fuel tank. Refer to Fuel Tank Replacement .