OK so MY sun roof works if i hold the switch and push at the same time...if i dont' push then the motor will lift it up some and then just crank like its not grabbing what ever it need to grab...is it that the motor isn't getting all the power needed or is the motor bad....if the motor is bad where would be a good place to find a new 1 for me? Junk yard? any where i could find a new 1?