Fuel System

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

The fuel system consists of:

a single-speed Mechanical Returnless Fuel System (MRFS) (3.5L vehicles).
a 2-speed MRFS (2.5L and 3.0L vehicles).
an All-Wheel Drive (AWD) saddle-type or Front Wheel Drive (FWD) L-shaped fuel tank.
an Easy Fuel™ (capless) fuel tank filler pipe assembly, which cannot be modified in any way.
a Fuel Pump (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.
fuel, vapor and brake tubes in an integrated bundle assembly attached to the underside of the vehicle by retaining clips.
has a supplemental refueling adapter located in the luggage compartment.
an Inertia Fuel Shutoff (IFS) switch (3.5L vehicles).
a FP control module (2.5L and 3.0L vehicles).
an individual fuel level sensor, AWD vehicles only.