I don't know exactly what is causing your problem but the operation of the windows is a very simple system comprised of one moving part, the window regulator. As a matter of fact it seems to be the only part in the door. The window attaches to two sleeves on the regulator and that goes up and down in a track. I have done three of these and it seems like it is the only part inside the door panel. Check out this video and it gives you the exact way a window in a deville goes up and down. It is very simple and takes me about 15 minutes to do the whole job.Is this an expensive fix if one were to have a shop do it?
Both my rear windows in my 2000 DHS don’t work [stuck in the up position] when I try to roll the windows down it goes down maybe a half inch and makes a noise that sounds like it’s about to crack the window.