66 Ford F-250 Truck Wiring Diagram

Howdy, I'm tryin to get our 66 F-250 to pass inspection by next week. The wiring under the hood is an absolute mess, but the only thing that doesn't work is the passenger side front turn signal. Four ways are good and the other signals are good, but that is only through dumb luck. The wiring is so hack job that I will just start over. Anyone have a diagram for this ole girl? Adrianspeeder

1966 Ford Mustang Wiring Diagram

http://www.kkpony.com/images/66external-wiring-schematic.jpg http://www.kkpony.com/images/66external-wiring-diagram.jpg

1966 Ford Bronco Wiring Diagrams

http://www.sierrabronco.com/wiringmainpage.htm http://www.bronco.com/graphics/diagrams/66-67ign.gif http://www.bronco.com/graphics/diagrams/66-67ex.gif

John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

Hey thanks John, you da man! Exactly what I needed. I think the problem comes from some some goober installin a trailer brake controller and hackin everything up. No need to tow trailers using this truck as I have a powerstroke for that, so I will just wire it up like stock. Adrianspeeder'02 F250 PSD, '97 F-150, '71 F-100, '66 F-250, '93, '92, '88, '84 Broncos

Penn State electrical engineerin' major

Not an F250 but Close.John DeRosa (Hotwaterwizard)

Stockton California

When in doubt, try it out !

Current status... Mostly rewired using the above diagram. The one turn signal up front was fixed with a new ground and a bulb. The rear lights were screwed up due to three different attempts at wiring up trailer connections. Got rid of all that junk and the rears work, almost. No brake lights. Hot wiring power to the master cylinder pressure switch lights the lights with the brake pedal, but need to find why the stock supply to the pressure switch is dead. Not really as critical now as I have my inspection sticker and can drive around to get other parts for it. I'll get some new pics up soon. Adrianspeeder'02 F250 PSD, '97 F-150, '71 F-100, '66 F-250, '93, '92, '88, '84 Broncos

Penn State electrical engineerin' major