General Information
THE FUEL SYSTEM CONSISTS OF:^ The fuel tank
^ An electric fuel tank mounted fuel pump
^ A fuel filter.
^ Fuel tubes/lines/hoses and fittings
^ Vacuum hoses
^ Throttle body and fuel injectors.
The powertrain control module (PCM) will either directly operate or regulate certain components of the fuel system.
THE FUEL DELIVERY SYSTEM CONSISTS OF:
^ The electric fuel pump
^ Fuel filter/fuel pressure regulator.
^ Fuel tubes/lines/ hoses
^ Fuel rail
^ Fuel injectors
FUEL RETURN SYSTEM
Fuel is returned through the fuel pump module and back to the fuel tank.
THE FUEL TANK ASSEMBLY CONSISTS OF:
^ The fuel tank
^ Filler tube
^ Fuel gauge sending unit/electric fuel pump module
^ A pressure relief/rollover valve
^ And a pressure-vacuum filler cap.
EVAPORATIVE CONTROL SYSTEM
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.