Mustang V8-302 5.0L COBRA (1995)
Fuel Vapor Valve: Description and Operation
Fuel Vapor Valve
PURPOSE
A vapor space between the fuel level and the fuel tank upper surface is combined with a small orifice and float shut-off valve in the evaporative
emission valve to prevent liquid fuel from passing to the evaporative emission canister.
OPERATION
Fuel vapor in the fuel tank is vented to the fuel vapor canister through the fuel vapor valve. A vapor space between the fuel level and the fuel tank
upper surface is combined with a small orifice and a float shut-off valve in the fuel vapor valve to prevent liquid fuel from passing to the fuel
vapor canister.