Ranger 2WD V6-182 3.0L (1995)
Fuel Vapor Valve: Description and Operation
Fuel Vapor Valve
Fuel Vapor Valve
PURPOSE
This valve is designed with a "head valve" which does not allow vapor flow until a predetermined pressure is reached (8 in H2O).
OPERATION
The new head valve allows flow through the .762mm (.030 in) keyway-orifice until there is sufficient pressure to lift the ball (head valve) about 8
in H2O or 2.0685 kPa (0.3 psi). When the head valve is open, vapor can flow through the larger 3.1 75mrn (.125 in) orifice.
