Ranger 2WD V6-182 3.0L (1995)
Fuel Vapor Valve: Description and Operation
Vapor Control Valve
Fig. 47 Fuel tank vapor valve
PURPOSE
Fuel tank vapor valve assemblies make use of a small orifice, 1.27mm (0.050 in), that allows only vapor and not fuel to pass into the line running
forward to the fuel vapor canister.
OPERATION
Fuel vapors trapped in the sealed fuel tank are vented through the orificed fuel vapor valve in the top of the fuel tank. The vapors leave the fuel
vapor valve through a single vapor line and continue to the fuel vapor canister in the engine compartment for storage, they are purged to the
engine.