Fuel Cooler
WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The fuel cooler is a liquid-to-liquid heat exchanger located on the inside of the left frame rail. Fuel that bypasses the high pressure fuel injection pump and the fuel pressure control valve is subjected to high temperatures. The fuel cooler transfers this heat to the coolant before the fuel is returned to the fuel conditioning module. Refer to FUEL SYSTEM for additional information.