Important: When replacing the evaporative emission (EVAP) pipe, always replace the pipe with original equipment or parts that meet the GM specifications for this part. The replacement pipe must have the same type of fittings as the original pipe in order to ensure the integrity of the connection.

1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
2. Clean all the EVAP pipe connections and the surrounding areas before disconnecting in order to avoid possible contamination of the EVAP system.
3. Disconnect the rear EVAP purge pipe (3) at the chassis EVAP purge pipe (2).
4. Disconnect the rear EVAP purge pipe (3) at the EVAP canister (4).
5. Remove the rear EVAP purge pipe (3) from the mounting clip (1).
6. Cap the chassis EVAP purge pipe and the EVAP canister in order to prevent possible EVAP system contamination.

1. Remove the caps from the chassis EVAP purge pipe and the EVAP canister.
2. Connect the rear EVAP purge pipe (3) at the EVAP canister (4).
3. Connect the rear EVAP purge pipe (3) at the chassis EVAP purge pipe (2).
4. Install the rear EVAP purge pipe into the mounting clip (1).
5. Lower the vehicle.