Can't Blow my Horn

Horn don't work on the '78 Pace car. I took the center cap off the column, took out the 3 screws to remove the thingy with the spacer shims under it and everything appears to be in order. The little pin with the spring on it looks to be in place. Should I be able to short something in there to see if I got power to the horn button? Is there a fuse for the horn or a group it's part of? Wires are hooked to them up under the front. Don't know where to check next??


|UPDATED|4/22/2012 1:07:27 PM (AZT)|/UPDATED|

I would think as you took the horn button off that ring should have sounded the horn. the wire that goes into the steering column is providing the ground for the horn relay. the horn fuse provides power to the relay then to the horns when the relay is energized. i think the horn relay is above fuse panel. if pushing in on the post that rubs on slip ring if you ground that to the column the horn should sound

I'm wid Bob....I don't know how you got the horn cap, and the shim pack off without the horn sounding, or it shocking the crap outta ya! Check the fuses first, of course. That post thingy in the column that the horn rings ride on should have voltage all the time...if it don't, then it is a fuse, or wiring problem. If it DOES, the relay is prolly bad, or a connector somewhere is not making contact. 

Thanks Bob and Joel, I'll climb up under the dash and check out the relay and wiring there. I did poke a thin screwdriver around in the column and got no noise or sparks. 

Just thinkin'  -- did ya try a bigger compressor -- more air?   

That reminds me. A friend picked up an old train whistle at a flea market and put a fitting on it for his air compressor. Man, that thing is loud.

Is the horn relay the little square thing under the dash with a green, orange and black wire? If not, what is that? There's a little copper coil in there and its all cruddy and rusted from water getting in.

Thanks, That sure looks to be the problem.