Milan FWD V6-3.0L (2010)
Canister Purge Control Valve: Description and Operation
Evaporative Emission (EVAP) Canister Purge Check Valve
ENGINE CONTROL COMPONENTS
Evaporative Emission (EVAP) Canister Purge Check Valve
The EVAP canister purge check valve is used on turbocharged engines to prevent boost pressure from forcing open the EVAP canister purge valve
and entering the EVAP system. The valve is open under normal engine vacuum. The valve closes during boost conditions to prevent the fuel tank from
being pressurized and hydrocarbons forced out of the EVAP system into the atmosphere through the EVAP canister vent valve. When the engine is
off, or at atmospheric pressure, the EVAP canister purge check valve is in an indeterminate state. The EVAP canister purge check valve is an integral
part of the purge valve assembly.
Typical EVAP Canister Purge Check Valve
