GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: Clean the pipe connections and surrounding areas before disconnecting in order to avoid possible evaporative emission (EVAP) system contamination.


    Object Number: 869712  Size: SH
  1. Disconnect the EVAP pipe at the EVAP canister purge valve.
  2. Disconnect the EVAP pipe from the chassis pipe.
  3. Remove the EVAP pipe.
  4. Cap the EVAP purge valve and the chassis EVAP pipe in order to prevent possible EVAP system contamination.

Installation Procedure


    Object Number: 869712  Size: SH
  1. Remove the caps from the EVAP purge valve and the chassis EVAP pipe.
  2. Install the EVAP pipe.
  3. Connect the EVAP pipe to the chassis pipe.
  4. Connect the EVAP pipe to the EVAP canister purge valve.