People might want to read into this thread where a member had two F150s leak on him, and both leaks were due to the channel/tracks of the rear sliding window. Eventually, he did fix his leak issue when Ford bought back his F150 and he bought a Sierra. It's a long read of a thread, but he has videos documenting the water drip from the rear window and onto the rear vent as well. https://www.f150forum.com/f118/2017-...ntinue-392466/

 

So what's the deal with 2018s? Did Ford change anything in the rear window design? I've seen many trucks with 'bumps' on the seal against the sliding window. What was disturbing is that they might leak more when truck is facing uphill, but don't understand why. Sounds like facing downhill would be even worse, as rain could hit directly at the bottom of the rear window. If the design is bad, it'd leak regardless, but maybe it's more inclined, for some reason. Also disturbing was to see water leaking into the doors via the plastic dust barrier. WTF? Water inside the doors should ALWAYS run down on the metal, leaking down to the vehicle via the holes at the bottom of the door. Not leaking to the barrier. I'm doubting Ford did anything to my truck, since it's identical to 2017s. At least as far as the doors. Still curious if the rear window was somehow improved. Does anybody know for certain? Thx.

 

 

had the same issue on a 2014, was covered under warranty

 

im curious,
i just took my 14 150 because the weather-strip is falling off on the rear window, they told me that it is not covered on the warranty. where can i go to see exactly is and isnt covered under warranty. all i could find on a quick web search is the coverage brochure

 

Totally different window than the 15's and up.

I can tell you that no Ford warranty other than the original 3/36 and maybe CPO for the first year will cover any seals. The way to get something like that covered is by using the part number for the window....as if it had a bad rear defroster grid. The window itself isn't covered, nor are the seals....but the defroster grid IS, and the only way you can get it is with a new window. So they use a different part number than just the glass to get ESP to cover it.

So if you came in with the rear defroster not working and they found the grid had some open circuits in it and you had the ESP that covers such a thing, they could get that covered and you'd get an entire new window. I think only their ESP Premium covers it, though.

 

The glasses from 2015-up are all the same, far as I know.
The rear sliding glass is designed to pass a bit of water....same concept as a sunroof. The bottom "track" the glass slides in has vent holes to the outside.

The main difference between these newer glasses and the 14-down glasses are these: One, they're glued in with urethane like the front windshield. Old ones were bolted in with butyl sealer.
Two, the sliding glass "tracks" are now glued to the window itself....they are no longer part of the actual outside frame like the older ones.
And unfortunately, some of these sliding tracks, the glue fails and the sliding glass will "tilt" away from the opening at the top. Only solution is replace the glass.

I suppose you could get some urethane and get a solvent rag in there, clean it up and apply the sealer, tape it in place until the cures and it might re-attach...but haven't tried that yet. When I see one of those, I just tell the advisor it needs a back glass.

The other issue I see with these back glasses and leaks is this: The BOTTOM "track" is also glued to the window, right? So when it comes loose, the water that gets by the seal of the slider, instead of just spilling over the track where it's glued to the glass, into the little "trough" and out the vent holes.....it goes BETWEEN the track and the window, and into the vehicle. See quite a few of these. Again, only effective solution is replace the glass.