My passenger window has never worked since I've owned the car. After digging-in I found the motor to be fine and the problem was the rear defroster rocker switch wires were plugged into the passenger window switch and vice versa. So now the window rolls up and down but there is too much play and it doesn't roll up and down properly, especially up. I started looking at the driver window, which works as designed but can't see anything obviously different about the two. I did take the window out and made sure both the forward and aft clips were on the channels.

What am I missing? Here's a video showing the "play" in the window.



https://youtu.be/zEYX2WkgZII