Fuel System
WARNING: This page is about a different car, the 2010 Mercury Milan, 2010 Lincoln MKZ, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The fuel system consists of the:
- All-Wheel Drive (AWD) saddle-type or Front Wheel Drive (FWD) L-shaped fuel tank.
- Fuel Pump (FP) module.
- fuel level sensor assembly (saddle-type fuel tank).
- fuel level sender (mounted on the FP module and, if equipped, on the fuel level sensor assembly).
- Easy Fuel™ (capless) fuel tank filler pipe assembly.
- FP control module on 2.5L and 3.0L vehicles.
- Inertia Fuel Shutoff (IFS) switch on 3.5L vehicles.
- fuel tubes.
- fuel injectors.
- fuel rail.
- Fuel Tank Pressure (FTP) sensor (part of the fuel vapor tube assembly).
The vehicle
- has a single speed Mechanical Returnless Fuel System (MRFS) on 3.5L vehicles.
- has a 2-speed MRFS on 2.5L and 3.0L vehicles.
- has either a single container (L-shaped) (FWD) or a dual container (saddle-type) (AWD) fuel tank.
- has a FP module containing:
- an electric FP, which provides pressurized fuel to the fuel rail.
- a serviceable fuel level sender.
- a check valve, which maintains system pressure after the FP is shut off.
- a pressure relief valve for overpressure protection in the event of restricted fuel flow.
- a lifetime fuel filter providing filtration to protect the fuel injectors from foreign material.
- has an individual fuel level sensor, AWD vehicles only.
- has a fuel rail-mounted Schrader valve on early build 3.0L vehicles.
- has fuel, vapor and brake tubes in an integrated bundle assembly attached to the underside of the vehicle by retaining clips.
- 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.
- has a FTP sensor (part of the fuel vapor tube assembly).
- is equipped with a sequential Multi-Port Fuel Injection (MFI) system.
- 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.