So the other day rolled down my window and then tried to roll it up again. The window would not go up. Got to the house and finely got it to go up and noticed a wad of some thing in the channel. Pulled it out and it was a piece of the channel felt. So now have to take the window out and install new felt. Any Ideas on what is causing this. Maybe the glass is a little too large or adjustment is off. These channel run's are not cheap and the work it will take to replace it is not fun. Guess it is the nature of the beast. Blue.