The brake lights on my 1966 F100 will not work. The bulbs are good. I replaced the connections to the hydraulic pressure sensor on the master cylinder as the connections weren't that good. I followed the wires from the hydraulic pressure sensor and one went to the flasher module while the other wire seemed to goes toward my ignition switch. I was wondering why these wires go to these things as they don't seem to have any effect on the braking system? So basicially I am asking for any suggestions... as this is an urgent problem. Thank you for your time.
i have a 68 f100 and found the something, why they did it that way i don't know. I have the same prob. my brake lights didn't work, i change the bulbs, connectors, and the brake switch. Now one side works but the other doesn't, and as for the reverse lights that side the the brake lights work on it doesn't work and the side that the brake lights don't work it does? maybe a grounding issue?
I am now thinking my brake light problem is in the turn signal switch assymbly on the steering column. I have removed a turn signal assy. off of another ford truck(late 70's maybe). The wiring is not the same and I also found a wiring manual on ebay. I guess I will attempt to wire it to my 1966 F100.
I did jumper across the pressure switch, ohmed out the wiring, all that seems to be checking ok. Thanks to all that have sent any suggestions. Chuck.