ExpyNole
Well-Known Member
Your F150 doesn't have the same transmission as the expedition(I can't remember when the f150 got the 10spd). The expedition doesn't use a true transmission oil cooler, it used a water to oil heat exchanger. So the coolant goes to the heat exchanger and heats/cools the oil. So, whatever the water temp happens to be is what the trans fluid temp will be unless the oil is really hot like when towing up a steep hill, then the Transmission fluid is going to be heating up the engine coolant. I have gotten into the yellow zone with my expedition, it doesn't cool under load as well as the f150. The F150 has a dedicate transmission cooler, oil to air. I believe the raptor some how has the heat exchanger AND another transmission oil cooler. I think the expedition would benefit from this for towing.
the 2017 3.5 ecoboost+ f150s all have the exact same transmission as us. 10R80. Gearing is probably identical too. Nothing changes between this gen expedition and same year F150's with regards to powertrain/drivetrain. We just have IRS in teh back but same size ring gear/housings even.