Pickup 2WD L4-155 2555cc 2.6L SOHC VIN E 2-bbl (1988)
Overfill Limiter (Two Way Valve)
OVERFILL LIMITER
The overfill limiter, Fig. 21 consists of a pressure valve and a vacuum valve. The pressure valve is designed to open when the fuel tank internal pressure
has increased over normal pressure and the vacuum valve opens when a vacuum has been produced in the tank.
Fuel Check Valve
FUEL CHECK VALVE
The fuel check valve, Fig. 83 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.
The fuel check valve contains two balls. Under normal conditions, the gasoline vapor passage in the valve is opened, but if roll over occurs one of the
balls closes the fuel passage preventing fuel leaks.
