I am in need of some help with the windshield wiper motor wiring for my 1966 Ranchero. I finally found a new motor, it has 4 wires; red, blue, black, and white, plus a ground wire. The original wiring for the Ranchero motor has just three wires, no ground. I have installed the motor and done some testing with test leads. The motor works, is a 2 speed, the original was a single speed, I can deal with that. My quandary is the other wires and what they are for. In testing the motor whenever I shut the switch off, that is where the wipers stay, is that normal?

Any information will be greatly appreciated!!

 

<p>the other wires are for the second speed and washer. when switching from single speed to 2 speed you also need to swap the switch and wires. the 3 wires in the single speed are for hot, washer and park with case ground. the four wires in the 2 speed are for high, low, washer, park and the case is the ground.</p><p>&nbsp;</p>

 

This information is greatly appreciated, do you know the color coding for the low speed, high speed, washer, and park? I have a Falcon wiring diagram for both the single and dual speed, it tells me what wires and the colors, but not what the colors are for.

 

<p>no sorry i do not. when i get single speed wiper cars in i just put in switch motor and wiring from the 73-79 F150 truck so the car gets 2 speed wipers with delay and washers.</p>

 

See if this helps
Some wires might not match but you can figure out what goes where.

1966 Ford 2 Speed Wiper Schematic

 

Many thanks, I have found a 2 speed switch and this information will be a great help in getting the wipers working.