F 250 4WD Super Duty V8-6.4L DSL Turbo (2008)
Fuel Cooler Coolant Pump: Description and Operation
FUEL COOLER PUMP
Fuel Cooler Pump
The fuel cooler pump is mounted to the cooling fan shroud on the driver's bottom side and it circulates the coolant which cools the fuel in the fuel cooler
system. The PCM commands the fuel cooler pump on by grounding the pump circuit when the fuel temperature exceeds the calibrated threshold.