Expedition 2WD V8-4.6L SOHC VIN 6 (1999)
Transmission Cooler: Description and Operation
All vehicles with automatic transmissions are equipped with an integral transmission fluid cooler. The integral transmission fluid cooler is contained
inside of the radiator outlet tank and cannot be repaired separately.
Some vehicles are equipped with an optional auxiliary transmission fluid cooler that is mounted in front of the radiator. In operation, transmission
fluid travels from the transmission to the auxiliary transmission fluid cooler, if equipped, to the integral transmission fluid cooler then back to the
transmission. The integral transmission fluid cooler transfers heat from the transmission fluid to the engine coolant. The auxiliary transmission fluid
cooler transfers heat from the transmission fluid to the outside air.
