Fuel System - General Information

FUEL SYSTEM







The vehicle:
- is equipped with a multiport fuel injection system.
- has separately controlled fuel injectors mounted to the intake manifold for each cylinder.
- has fuel injectors that are supplied with pressurized fuel from the fuel pump through the fuel injection supply manifold.

The 5.4L (4V) engine:
- has a fuel injection supply manifold which is equipped with a fuel pressure regulator.
- has a fuel pressure regulator controlling the pressure going to the fuel injectors.
- has excess fuel to the fuel injectors returned to the fuel tank.

The 4.6L and 5.4L (2V) engines:
- have a returnless fuel supply manifold.
- have a fuel pressure regulator mounted to the fuel pump assembly inside the fuel tank.
- have a fuel injection supply manifold which is equipped with a fuel pressure damper.