My 1994 Plymouth Voyager has a problem with the windsheild wipers. When I turn them on, all I hear is a click, and then nothing. Is this a fuse problem, and if so, where is the fuse? Is this a wiring problem, and if so, should I just go have the van fixed?

Learn how to test electrical circuits ! Find a wiring diagram so you know which wires to test . Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on body & accessories , then under subsystem click on wipers / washers .Check B+ voltage and ground circuits .
Wiper Motor Switch Troubleshooting
Windshield Wiper Motor Wiring Tutorial

Will it crank in neutral, and have you checked the starter to see if it has power when the key switch is in the start position ?

Turn the key off then engage your e brake one click. Then turn your key on and you will have no lights!--------------------------------------------------------------------------
vas 5054a

bad wiper switch

the motor is located usually just below that plastic cowel in front of the windsheild or on the very back up the firewall but usually under that plastic. it will have a pully contraption with metal bars running to it. it is actually pretty simple to replace usually just plug and play

the wiper could be a fuse or the wiring, the heat issue could be it's low on coolant?

Lift your hood, look under wipers area on driver side & you should see a wiring connection there, with wires going up under & into wiper motor area below windsheild. Disconnect there, should stop them for now, until yu decide what your going to do about it. Pull it apart when wipers are down out of the way.

replace the relay for the wipers

there is a short check your wiper motor.

Under the cowl (it is a plastic piece that the windshield wipers come out of) are the wiper arms that connect to the wiper motor. There are plastic parts that hold the wiper arms to the wiper motor. Lots of time these plastic parts dry out and break and the wiper arm will fall off the wiper motor. I would bet if you tried to move one of the wipers by hand both of them would move with little resistance. This would tell me that the wiper arms are disconnected from the wiper motor. The parts to fix this are easy to get. I know the motormite HELP line of parts used to have the plastic bushings to fix this problem.