Window problems
Ive worked on the windows toooo many times. It could be the motor, but far more likely to be the guide channels attached to the bottom of the windows & the vertical window guides. Either way, you've got to take the door interior panels off & window out. Then test window mechanism & clean the channels attacfhed to the windows & regrease, I use LM grease left over from wheel bearing work. I also found that cleaning the vertical window guides that the windows run up and down in made the world of difference. Just count yourself lucky your window is not hanging out at a funny angle + it's started to rain hard, been there & done that