Fuel System - 4.6L, 5.4L and 6.8L
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
The fuel system consists of the following:
- Fuel and vapor tubes
- Fuel filter
- Fuel pump (FP) module
- Fuel tank filler pipe assembly
- Fuel tank
- Fuel rail
- Fuel injectors
- Inertia fuel shutoff (IFS) switch
The vehicle is equipped with a multi-port fuel injection (MFI) system. The fuel injectors are separately controlled and are mounted to the intake manifold. The fuel injectors are supplied with pressurized fuel from the fuel pump module through the fuel rail. The electronic returnless fuel system controls the fuel pump module through the PCM. The fuel rail has a fuel pressure sensor which controls the pressure going to the fuel injectors. The fuel system is and electronic returnless fuel system. The fuel system has an IFS switch, which shuts off the fuel by interrupting power to the FP driver module in the event of a collision.