[tomj76]

FYI, on Carbone lift motors.

I don't trust them. The ones I bought were not new, but rebuilt ones. This normally would be fine, except the definition they use for rebuilt is loose at best.

I had to replace one on my GM vehicle. The GM lift motor contains an integral burnout protection. There's a temperature senstive resistor in the motor that increases in resistance if the motor overheats. This limits the current in the motor and keeps the winding insulation from melting and shorting the windings.

The GM lift motor slows down over time, probably either because the brushes become worn or because this resistor degrades over time. Carbone "rebuilds" these by injecting a little stuff (not sure what the stuff is) around the resistor to keep it from getting hot. The motor works great except that there's no protection on it. Both of the two that I installed (in the same door) burned out because my switch kept getting stuck. I finally solved the probelm when I bought an original GM motor that was still in working condition. It was even a little less expensive than the rebuilt ones.

I don't know how Ford implements the thermal protection of lift motors, but now I am always suspicious of rebuilt motors.