Rear PWR window help!

Hey all you that are in the know. About a week ago I used the rear pwr window and it worked but really slowly. Then over this last weekend the window quit going all the way down. It’ll move like 2” and then stop, I can put it back up so it isn’t frozen for sure. Has something worn out? Where should I start with this repair?

 

Open it up and see if anything obvious is bent or stuck.

Maybe a good cleaning would help also.

 

I had the same problem a while back. It turned out to be one of the window track bolts pulled out of mounting hole, i had to install longer bolt. You will need to remove inside tailgate panel to access all parts.