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.)


    Object Number: 409011  Size: SH
  1. Disconnect the engine purge pipe from the evaporative emission (EVAP) canister purge valve.
  2. Remove the engine purge pipe retainer from the power steering pump bracket.
  3. Disconnect the engine purge pipe from the chassis purge pipe.
  4. Note the engine purge pipe routing for installation.
  5. Remove the engine purge pipe.

Installation Procedure

  1. Route the engine purge pipe to the engine as noted.
  2. Connect the engine purge pipe to the chassis purge pipe.
  3. Position the engine purge pipe to the power steering bracket and install the retainer.

  4. Object Number: 409011  Size: SH
  5. Connect the engine purge pipe to the EVAP canister purge valve.