Express 2500 2WD V8-4.8L VIN V (2004)
Canister Vent Valve: Description and Operation
EVAP CANISTER VENT SOLENOID VALVE
The EVAP canister vent solenoid valve controls fresh airflow into the EVAP canister. The valve is normally open. The control module commands the
valve ON, closing the valve during some EVAP tests, allowing the system to be tested for leaks.
