The window on the back door driver side i noticed the other day is making wierd noises when i roll it up and down. When its up all the way and I roll it down it almost like sticks to the top and then sorta plops down making a loud noise.

It does go up and down however when it goes up and i watch it i notice the window wobbles up and down on the sides. When its rolled down half way and you grab the window on the top i can move it pretty freely around and actually pull it up out of the door almost..

Anyone have any idea what this is ? Or how i could fix this, if i can fix it myself ?

This is a 98 Grand cherokee Inline 6

 

you have to take of the door panel and see if the rollers pop out of metal rail.
Most likely the plastic wheels are broken. I asked the dealer and they want to sell the whole window regulator. I am still looking for place to buy those plastic wheels.