I don't own one but i was just reading that the 2002 expedition's with the 5R55W transmissions do not have a dipstick. The owners manual says that it is designed not to use fluid and does not need to be serviced for 150k miles. If it develops problems you need to take it to the dealer for them to check the fluid. What's up with this? How does the dealer check the fluid? Does it have a plug like a manual tranny?

-Jon