I have a 1977 Dodge W-100. The horn is intermittent because as the steering wheel is turned the ground is not consistent. I've tried to find how the column is grounded but didn't see anything obvious.Any help will be appreciated.Thanks, Bob
My experience is with aftermarket stuff...... In my situation, the horn button ground is connected to the nut holding the steering wheel to the column. Then there is another wire running through the column that will carry the ground down to the fuse panel (in your case the ground is probably going to a switch/relay instead of fuse panel). Regarding your statement about the ground not being consistent as you turn, your horn button should account for that; there should be a circular piece on the column that part of the horn button makes contact with to complete the ground circuit.Hope I've explained it in a way that makes sense and it helps you solve your problem!
I've checked that part. I can't find where the steering shaft makes the ground connection to the column. I don't think it's through the upper shaft bearing, with the grease not allowing a good ground connection.
i have seen ground wires on the steering coupling... from one bolt/rivet to the one 90 degrees away... this grounds the steering column inner shaft through the steering box.. as there is supposed to be PRELOAD on the steering box worm gear/input shaft bearings it should be a good ground through the steering box..you could create a new ground for the steering column shaft... using either a lightweight universal carb return spring end with a OPEN bent end looped around the exposed shaft below the column jacket and above the steering coupling... or use a braided ground strap laid over the column and pulled tight against the shaft by a spring... perhaps with some aluminum anti seize paste on it so it does not dig into the column shaft.. i totally agree thats its not grounded through the upper bearing as thats i am almost sure is encased in rubber.. if you had the steering wheel off.. you could also take some braided ground strap and go around the column shaft right at the 3 screw plate that holds the turn signal switch down.. this like the spring or ground strap at the bottom of the column tube would be like a BRUSH rubbing the column tube.. NOT BOUND TIGHT preventing you from turning the steering column and must be positioned and verified that it will not and could NEVER BIND or WRAP up around the column shaft...its been a LONG Time since i had one of these apart so i don't recall exactly how the shaft is grounded..