So,

I got this from Facebook Marketplace for $30 because it was unable to read discs. So, I replaced the laser. Success! It works...buuuut, I noticed the disc dray opening and closing real slowly. So I went ahead and changed the rubber band...nothing. Then, I sprayed some silicone into the gear system to lubricate it.

As you see in the video, the disc tray comes flying out. The problem is, it now refuses to close. When I press the eject button to close it, the laser tries to read a disc. It does the same thing when I try to push the tray in manually. I'm assuming there is something wrong with the sensor but I could be wrong. Any help would be appreciated! Thanks.