Fuel System

The fuel system consists of the:

• saddle-type fuel tank.
• Fuel Pump (FP) module.
• lifetime in tank fuel filter on 3.7L and 5.0L (4V) vehicles (serviced as part of the FP module).
• fuel level sensor.
• Easy Fuel™ (capless) fuel tank filler pipe assembly.
• fuel rail.
• fuel injectors.
• fuel rail pressure and temperature sensor on 5.4L (4V) vehicles only.
• inline fuel filter on 5.4L (4V) vehicles only.
• Fuel Tank Pressure (FTP) sensor (part of the fuel vapor tube assembly).
• fuel tubes (liquid and vapor).
• Fuel Pump Control Module (FPCM).

The vehicle:

• utilizes an Electronic Returnless Fuel System (ERFS) on 5.4L (4V) vehicles and an Mechanical Returnless Fuel System (MRFS) on 3.7L and 5.0L (4V) vehicles.
• has a saddle-type fuel tank.
• has a FP module in the LH saddle of the fuel tank that supplies fuel under pressure to the fuel rail.
• has a serviceable fuel level sender mounted on the FP module.
• has a fuel level sensor in the RH saddle of the fuel tank.
• has an Easy Fuel™ (capless) fuel tank filler pipe assembly, which cannot be modified in any way.
• has a supplemental refueling adapter located in the luggage compartment.
• is equipped with a sequential Multi-Port Fuel Injection (MFI) system.
• has fuel tubes (liquid and vapor) mounted on the underside of the vehicle in a bundle.
• has a FTP sensor (part of the fuel vapor tube assembly).
• uses separately controlled fuel injectors for each cylinder. The fuel injectors are mounted to the intake manifold.
• fuel injectors are supplied with pressurized fuel from the FP module to the fuel rail.
• fuel injection rail pressure is controlled by the electronic FP module which is enabled by the PCM.
• has an Fuel Pump Control Module (FPCM) that shuts off fuel in the event of a collision.