Drivers side power window

Drivers side power window working sporadically. All other windows are working fine. Does this sound like the switch or the window regulator? The regulator was replaced by the dealer 1-1/2 years ago.

sounds more like the motor,sometimes they can be cleaned (there is usually lots of gummy build up inside the motor case)

I have had this same problem on one of my '02 Grand Caravans. Traced it to a pinched wire in the harness that goes through the door.

I had same problem. Replaced the window regulator about 3 months ago and no problems since.