Having trouble with my '01 GPGT's windows. First my rear passenger window randomly stopped working. It's up, will not go down with its own switch or driver's door switch. It's not making any noises and was functioning fine two weeks ago until I went to put it down one day, and found it wouldn't move.

My front passenger window has stopped working as well. It worked intermittently for 2 days before failing ie; one day it wouldn't budge, then worked fine all day the next day, and then it's been stuck closed ever since. When it did work it was perfect, no dragging or noise or slowness. But it's been stuck closed for a week now. Same deal, neither its own switch nor driver's door switch do anything, no noises, it just doesn't move.

I know both those doors are getting power as the automatic locks and lock switches work fine. Odd both windows on passenger side fail like that within two weeks of each other. Anyway, what is this likely to be? Motors? And how to fix?

Thanks!