My 99 and now my 2000 Expy both leak from the tail gate door window. I keep the seals lubed up, but that only lasts so long. Does anybody else have this problem? And if yes, any fixes?

 

My wife's 98 Expedition leaked through the back glass. The dealer replaced the seal under warranty, and it hasn't leaked since. That was about 3 years ago

 

I've had that problem several times and they keep tightening the bolts and now they have replaeced the rear seal.. Hopefully that will work, also i've had seat squeaking noise and they replaced the lumabr but the squeak is still there I have 34k on it and is only a year old, also as an fyi i just got my throttle body and injectors cleaned and gained about 1.5 mile to the gallon.. it's a big deal when you get 12.5 to the gallon and as far as transmission they replaced my tr sensor (transmission range) has something to do with shifting.

Good Luck