System Overview
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 cools unused fuel that the high pressure fuel system returns to the diesel fuel conditioning module. The fuel cooler is located in the left inside frame rail, forward of the diesel fuel conditioning module. Two fuel hoses and 2 coolant hoses connect the fuel cooler with other system components.
The fuel cooler is part of the 6.7L Diesel powertrain secondary cooling system. For additional information, refer to ENGINE COOLING - 6.7L DIESEL POWERTRAIN SECONDARY COOLING .