2010 Ford F150. Heard a "pop" when I opened the sunroof. The roof will only close half way. I reviewed many of the online comments and I am furious that this is a common and expensive problem. This is the third "plastic: part problem that I have had. 1. Fuel door 2. AC/Heat control and now this.........the motor is running but the window will not move. How can I get this closed? any help would be greatly appreciated