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.)

Notice: Clean all of the following areas before performing any disconnections in order to avoid possible contamination in the system:

   • The fuel pipe connections
   • The hose connections
   • The areas surrounding the connections

  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Important: Before disconnecting or reconnecting evaporative emission (EVAP) pipes. Refer to Plastic Collar Quick Connect Fitting Service .


    Object Number: 1480089  Size: SH
  3. Disconnect the EVAP canister purge pipe (1) from the EVAP canister and the fuel tank.
  4. Disconnect the EVAP canister fresh air pipe (2) from the EVAP canister and the fuel tank.
  5. Disconnect the EVAP canister vent solenoid valve pipe (3) from the EVAP canister and the vent solenoid valve.
  6. Remove the pipes from the pipe retainer.

Installation Procedure

  1. Install the pipes to the pipe retainer.

  2. Object Number: 1480089  Size: SH
  3. Connect the EVAP canister vent solenoid valve pipe (3) to the EVAP canister and the vent solenoid valve.
  4. Connect the EVAP canister fresh air pipe (2) to the EVAP canister and the fuel tank.
  5. Disconnect the EVAP canister purge pipe (1) from the EVAP canister and the fuel tank.
  6. Lower the vehicle.