Laser FWD L4-1997cc 2.0L DOHC Turbo (1993)
Evaporative Check Valve: Description and Operation
Rollover Valve (Fuel Check Valve)
Fuel Check Valve
The fuel check valve, is used to prevent fuel leaks should the car suddenly roll over. This valve is connected in the fuel vapor line (between the
canister and overfill limiter) and is mounted on the firewall.
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.