my wiper motor gets hot ?

My only advice is to READ THE SERVICE MANUAL. I'm not tryn' to be mean here. You can download them free at MyMopar. There are differences between variable, two speed, and three speed systems. download 2, 3 differnet years manuals, because some have different/ better troubleshooting info. Section 8, electrical

Don't discount simple stuff like BAD BUSHINGS in the wiper hubs