Evaporative Emission Hoses/Pipes Replacement - Engine for GMC Truck Envoy - 2WD 2009

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

1. Disconnect the EVAP pipe (1) from the intake manifold and the EVAP canister purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service .
2. Disconnect the EVAP pipe (2) from the EVAP canister purge solenoid and the chassis EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service .
3. Cap the Intake manifold port, the EVAP canister purge solenoid and the chassis EVAP pipe in order to prevent possible EVAP system contamination.

1. Remove the caps from the Intake manifold port, the EVAP canister purge solenoid and the chassis EVAP pipe.
2. Connect the EVAP pipe (2) to the EVAP canister purge solenoid and the chassis EVAP pipe. Refer to Plastic Collar Quick Connect Fitting Service .
3. Connect the EVAP pipe (1) to the intake manifold and the EVAP canister purge solenoid. Refer to Plastic Collar Quick Connect Fitting Service .