I fixed my squeaky windows by removing the door panels and spraying silicone lubricant on all the cables, pullys and runners.

You have to reattach the power to the window and move it up and down to get the silicone into the cable protectors.

Here is a link to remove the panels

https://www.f150online.com/forums/in...2004-f150.html

The back doors are different then the front. The speaker cover stay on the panel, you have to remover the plastic piller ontop of the panel.

Also, remover the inside window felt just by lifting it off, this way you done get the silicone in the felt. be sure to clean any silicone off the inside off the window before putting the felt back.

I just did this today, all four windows squeaked before and now none do. We'lll see how long it lasts.

 

I had this squeaking window problem a little while ago. But recently, i had my truck treated with an anti-rust treatment for the upcoming winter season... and guess what...
No more squeaky windows !
They drilled a little hole in the door & sprayed their stuff all over inside the door.

For 60$, i've got my truck protected against rust and the squeaky window problem is now fixed !!!