I have a 2012 Ford F-150 FX4. I am having problems with the driver's side window. It doesn't want to roll down. I have tried replacing the fuse, but it seems to blow out every time I've tried to replace it, so it could be a shortage issue. ALSO, it will not go into 1 and 2 low gears. Any suggestions to what I could do to fix these issues and are these common problems?