my break lights stopped working. i installed a new turn signal assembly and everything was working great. today i discovered my break lights arte not working. no blown fuses and i made sure all the connections in the turn signal assembly were connected. the hazards work, the turn signals work... any ideas???

 

On my 66 there are 2 wires coming off the master cylinder. All you have to do is connect them to see if the lights coming on. Sometimes those things can go out.

 

I could be wrong and will check but I dont thing there are any wires from my master cylinder? Should there be? I have a 69 F100.

 

No, your truck's brake lights work from a switch that's mounted on the brake pedal up under the dash. It's a pretty simple deal, make sure it has power coming to it. Possible that the switch is bad given you've replaced most everything else.

 

is this what your talking about

1969 Ford F-100 Pickup - Brake Light Fail Switch | FordParts.com

I did replace the master cylinder as well. I must have missed that somehow???

 

It was the switch on the pedal... Thanks...