The driver side power window on the suburban died in the down position. My son said intermittently it has been stopping just shy of the top but not the bottom. When it was working I didn't hear it bogging down. It worked properly. Wondering if it could be the switch and not the motor. As I'm typing this I just realized I can try the one out of my sierra since I'm still in the rebuild of the engine. That's a quick check. If it works great if it doesn't it's most likely the motor. Any thoughts?