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.