Wiper woahs...

Got a good one here in Georgia you may have heard has had some bad weather. Well about 2 weeks ago I had the Cuda in the rain and turned the wipers on. Everything was good for about 2 minutes and then they started stuttering. It is hard to explain but basically they work fine but suddenly stop working and then come back. I am thinking it is the wiper switch because I also am having an issue with the dimmer on the headlight switch. It comes on but doesn't dim them dash lights just turns them on or off.