Im sorry for this being long but i wanna give yall all the info so this would be easy for yall. Ive got a 1973 f100 with a 390 from a mecury couger, the guy i bought it from built it for only being an off road toy so all the regular wiring harness was gutted and he only made the head and tail lights work and has msd ignition in it with push button start and i wanna keep all the engin wiring the same, the only thing im trying to do is get turn signals to work. The truck dosent have a turnsignal switch a spot for a turnsignal switch nor the wires comming up the steering columb. i bought a painless wiring harnes and to make a long story short ive got everthing done to the turn signals and what im trying to do is use a three way toggel for left and right and the center is 2 wires labeld turn signal input and brake turn signal. on the left and right of the toggle are the respected front and back wires for the lights. Ive got the headlight harness set up but the park/turnsignal harnes seems to be kicking my *** one wire to turnsignal wire the other to ground but a third which is not labeld and the instructions dont have anything about it and i dont know what to hook it to. please help i hate seeing this truck sit and rott in a garage. i will be monitoring this post closely so if i wasnt descriptive enough please ask and i will tell you but keep in mind vehicel eletrical is my extremely weakest point.

 

Seems you would be better asking painless, but I think, based on what I can figure out, that you have 3 wires, but only can figure out what to do with 2? Seems to me that one is common, one is LT, and the other is RT. The common supplies power, and the switch connects it to either LT or RT and then that wiring travels to the respective lights.

 

im sorry if i seem ignorant but what do you mean by the common? the wire that doesnt go to anything ovious sould be routed to a power source or back to my makeshift turn signal switch?

 

Yeah, it should be a power source. It supplies power to the switch. The switch then supplies power to either the LT or RT.

Without seeing the setup, it is kind of hard to know for sure.

 

ok thanks sorry for the loose description. im on the east coast so im headed for bed but tomorrow afternoon i will take pictures and better describe whats going on