We got some ice and snow in the St. Louis area and I parked my truck at work with the wiper switch still on. I started the truck after work then ran back inside for a few minutes. Both wipers were froze while the switch was engaged. I came back out and noticed it and now my passenger side wiper doesn't work but every now and then, it was do a complete 180 and jab my driverside wiper that still works. I have no idea what to replace and know basically nothing about wiper motors .

 

I had the same thing happen recently, i jsut left it for a while because it was the passenger side acting up so i didn't really care to much, for me it was just a screw that i needed to tighten by the arm. But it could also be the either the arm is stripped which just replace it, or the motor is which can be a little trickier to change. Just take the the whole arm off and have a look see or if you really don't know what to do just take in to a shop, for a wiper i don't think it would be to bad