Finally got my horn working...

[Armo67]

Well, quick back story. I have a 68 c10 I bought about 10 years ago. Pulled it out of a field and it fired right up. Put it into a shop to quickly get it road ready and checked since I did not have the time or the knowhow. Got taken for a lot of money and no real work done.

Took it to another shop and they had my truck for nine months and the work they did was half-assed. So the truck just kinda sat for a year or two with the occasional drive and oil change. I know have the time and funds and am determined to acquire the know-how to do everything on my trucks, and have been claiming small victories little by little.

I've eliminated the brake drag by adjusting the brake booster push rod. Gotten my temp gauge to work, eliminated the ticking of my speedometer, replaced headlights and installed headlight relays. Among other things, like I said, small things.

Well, I've run up against something that makes no sense to me. One of the shops was supposed to get my horn working, but they said they tried and were unsuccessful. So I got to looking in the engine bay and noticed that the wire to the horn was disconnected. Hooked it up and tried it... No go. Traced the wire inside the cab and found that it was also unhooked under the dash. Hooked it up... And I heard my horn for the first time!

In my excitement, I hopped in and went off for a drive. I heard my horn numerous times on this drive... As it promptly sounded off... Every time I made a left hand turn.

Is anyone familiar with this issue?

[Mister-B]

Good job getting your truck out of jail, and working on it yourself.

The best thing to do, is to disconnect the wire from the horn in the engine bay. Then, remove the steering wheel with a puller, and inspect the various parts. There are quite a few intricate parts to the horn, the signal cancel, etc. something probably broke or was not assembled correctly. As you're sorting it out, you'll hear a buzz here and there. That would be your horn honking if it were connected in the engine bay. This way, you can test your assembly without honking the horn constantly. Make sure you save what parts you do have that are good. They don't make 67/68 horn button parts anymore. You'll need to find them in eBay, the forum, junk yard, etc. if something is broken. It could have just not been installed correctly though.
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[Armo67]

OK, my guess was that it was something in the column. Are pullers universal or will I have to find one specifically for a 67/68?

[Lattimer]

They make puller kits that are universal. I have a cheapo from Harbor Freight that works fine. You can also borrow them from some auto parts places.

I 2nd what Mister-B said, sounds like an issue in the horn switch. Do you have an original or aftermarket wheel?

[Armo67]

It's an original wheel.

[Lattimer]

Originally Posted by Armo67

It's an original wheel.

If you do a search on here for horn button, there are a few really good threads with photos showing how to disassemble and assemble the wheel and horn.