I went to open the Sunroof last night and it was rolling back really slow and then got stuck. I figured there was gunk in the track, so I forced it up and back while pushing the button. It finally freed up, but I noticed that one side of the track looks like the metal was scraped off.

Now it goes up and back at the right speed and with ease, but it rolls forward and stops 2 or 3 inches from the end and then rolls backwards as if it thinks it closed all the way and is pushing the window up.

I don't know what to do! Please help!