I have a single cab 2003 F150 and noticed today that the ceiling in my truck where it reaches the back glass was wet. I did not look at it that much, but it is def a leak. Anny ideas. COuld it be the back window seal?

 

https://www.ford-trucks.com/forums/6...ar-window.html

 

they tend to leak behind the drivers head, maybe a foot from the top corner toward the center. must be a factory problem with seal installation. buy a new seal at Auto Zone and use the photos above.

 

I used a $3 tube of silicone, applied on the top, outside of my slider, to fix it. Mine was on the passenger side....

Steve