I just bought a 94' ranger 4x4 3.0L and my wipers don't work. I hear a clicking noise when I turn them on. I had the same exact problem with my 91' 2.9L.
I fixed it by replacing the intermediate wiper relay box (where the clicking noise was coming from) that I got from a junk yard. The weird thing is I switched the good one from the 91' into the 94' and it still dosn't work! I then took the one that was in the 94' and put it in the 91' and it worked. Also checked the fuse, its good. I know it doesn't make any sense but if somebody could help me it would be greatly appreciated!!