i have a 92 f150 inline 6 i just did a conversion to a 351 it came out of a 97 f250...
so i replaced the engine compartment harness and wiper motor everything works fine
but the wipers dont ..the old wiper motor was a 2 plug but now its a1 pug .
the old one was workin so it cant be nothing electrical inside and i already test the old motor on by other truck

 

Are you getting power to wiper motor? Did you check wiper fuse? Take a test light check for power on wire or plugin connector .Also check make sure wiper motor is grounded good .

 

I used my powerprobe to check the back of the plug and I have ground to both black wires and positive to the green... all of my fuses are good and I hear a clicking noise behind my glovebox

 

On the Wire harness that plugs onto your wiper motor how many wires do you have .On my 95 F250 I have 6 wires .Does your truck have intermitten wipers?Maybe you should put your old wiper motor back on and rewire it .

 

the plug has 6 wires..
im not sure if i have intermitten wipers
if nothing works i may just try wiring it to switch

 

Behind the glove box is the control box of the wipers, if it's unplugged your wipers won't work.

 

Its plugged in I already replaced it and I hear it make a clicking noise when I change speed