If you had another motor recently worked on, I wonder if it might be ground problem.
I think Chrysler at that model date was clustering high current accessories and motors in such a way that a single motor could go out without affecting the other motors in the cluster. It could be that while repairing the window/door, they bumped the ground lug of the wiper branch. You might want to watch for problems in the AC blower as well.
Post Edited (10-01-03 12:16)