Fuel Tank: Description and Operation

FUEL TANK REQUIREMENTS
All vehicles pass a full 360 degree rollover without fuel leakage. To accomplish this, fuel and vapor flow controls are required for all fuel tank connections.

FUEL TANK COMPONENTS
All models have a rollover valve mounted in the top of the fuel tank. On vehicles equipped with a return line from fuel pump-to-fuel tank, a one-way check valve is used to provide required protection. In addition to the valve, improved flow control is used in fuel pump. Fuel flow is controlled if pump is subjected to higher than normal pressure during rollover. For the same reason, a fuel filler cap with higher pressure setting is used to control fuel flow on vehicles with side fill.