Vibe FWD L4-1.8L VIN 8 (2004)
Fuel Tank Vent: Description and Operation
FILL LIMITER VENT VALVE
The cross sectional view of the FLVV (6) shows the path of fuel vapors leaving the fuel tank by passing thru the valve to the EVAP canister (1). When
the fuel filler cap is removed during refueling, the atmosphere chamber (3) fills with atmospheric pressure that has entered thru the port (4) from the fuel
filler pipe. The pressure in the atmosphere chamber (3) opens the port (1) to the EVAP canister by closing the vent control valve (2). Refueling causes
the internal pressure in the fuel tank to increase, pushing fuel vapors into the FLVV (6) and out to the EVAP canister (1). When the fuel tank is full, the
tank vapor control valve (5) closes, sealing off the port (1) to the EVAP canister.
