1996 Chevy Corsica automatic window track

Look close on the track to see if there is a bent area where the wheel slipped out. In my experience, since you already have the door apart, spend the few dollars to purchase a new wheel, if the ends of the track are bent to prevent the wheel from rolling all the way off, straighten them and after replacing the wheel, roll it back onto the track. I would still look the track over really close..... It had to come out of the track for a reason.