I'm stumped... Only the driver's side of the sunroof works. I have checked the operation of the rails on each side and they both seem to work smoothly and equally. I checked the motor and it works fine but doesn't seem to want to engage the cables on both sides. It moves one side ok, but it is almost like the other isn't engaged at all. The cables appear to be in good condition, the drive gear almost shows no wear at all. There is a little piece of metal that fits around the drive gear...could that be worn and not allowing one side to engage? Is there anyone out there who has dealt with this before?