Fuel Cooler - All Others
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Ford Transit-350 HD, 2018 Ford Transit-350, 2018 Ford Transit-250, 2018 Ford Transit-150, and 2018 Ford F-550 Super Duty. 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.