Contents Wiring diagrams Section: Engine Mechanical - 5.4L (3V) All sections

Induction System Ford Expedition III

Induction System

The SFI system provides the fuel/air mixture needed for combustion in the cylinders. The 8 solenoid-operated fuel injectors

  1. are mounted in the intake manifold.
  2. meter fuel into the air intake stream in accordance with engine demand.
  3. are positioned so that their tips direct fuel just ahead of the engine intake valves.
  4. supply fuel from the fuel tank with a fuel pump mounted in the fuel tank.