Fuel Delivery and Air Induction: Description and Operation
FUEL DELIVERY SYSTEMThe fuel delivery system consists of: the electric fuel pump, fuel filter, fuel pressure regulator, fuel tubes/lines/hoses, fuel rail, fuel injectors, fuel tank, accelerator pedal and throttle cable.
The in-tank fuel pump module contains the fuel pump, fuel filter, level sensor, and fuel pressure regulator. The pump, fuel filter, and regulator are serviced as part of the fuel pump module. Refer to Fuel Pump Module.
The fuel delivery system contains a in-tank life time fuel filter. The fuel filter is designed to last the life of the vehicle. No maintenance is required of the fuel filter.
A fuel return system is used on all models. Fuel is returned through the fuel pressure regulator within the fuel pump module.
The fuel tank assembly consists of: the fuel tank, filler tube, fuel gauge sending unit/electric fuel pump module, rollover valve, ORVR control valve, fuel fill check valve, and a pressure-vacuum filler cap.
Also to be considered part of the fuel system is the evaporation control system. This is designed to reduce the emission of fuel vapors into the atmosphere. The description and function of the Evaporative Control System is found in the Emission Control Systems.
Long-Term Storage
When storing your Dodge Viper for long periods, leave the fuel tank and fuel system full of fuel. For further information about long-term vehicle storage, refer to the Lubrication and Maintenance section.