Laser FWD L4-1997cc 20L DOHC (1992) Evaporative Check Valve: Description and Operation
Evaporative Check Valve: Description and Operation
Rollover Valve (Fuel Check Valve)
Fuel Check Valve
LOCATION
Connected in the fuel vapor line (between the canister and overfill limiter) and is mounted on the firewall.
PURPOSE
The fuel check valve is used to prevent fuel leaks should the car suddenly roll over.
OPERATION
Under normal conditions, the gasoline vapor passage in the valve is opened, but if roll over occurs at least one of the two balls closes the fuel
passage preventing fuel leaks.
