GM Service Manual Online
For 1990-2009 cars only

Evaporative Emission Hoses/Pipes Replacement - Engine Purge Pipe

Removal Procedure

  1. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .

  2. Object Number: 783172  Size: SH
  3. Disconnect the engine purge pipe from the evaporative emission (EVAP) canister purge valve.
  4. Disconnect the engine purge pipe from the chassis purge pipe.
  5. Remove the engine purge pipe.

Installation Procedure

  1. Position the engine purge pipe to the EVAP canister purge valve and the chassis purge pipe.

  2. Object Number: 783172  Size: SH
  3. Connect the engine purge pipe to the chassis purge pipe.
  4. Connect the engine purge pipe to the EVAP chassis purge valve.
  5. Install the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .