No Beep Beep when driving - Horns

I am looking to see if anyone has any dual (High/Low) horns that work, that they are interested in getting rid of. I have checked the yards around my area and they don't carry any of these types of vehicles. If anyone that does have access to some, if you could keep your eyes open for them and also test them if they allow I would be greatly interested in them. I have checked all the different auto parts stores in town and they don't have anything that looks at good as the originals.

Also would be interested in any other solutions that anyone has done to fix horns that don't work.

Does anyone know if there is a horn relay that I can also check? When I hit the horn bar, I hear a click but no sound. I have tested each horn on a car battery with the hot wire and ground wire and get nothing from either one. Have put WD40 down both of them to try and get it to break loose. Is this the right way to check a horn, and is there a way to check the relay if there is one?

Help as I need to be able to honk at the people that crane their necks to see the truck and the beautiful wife in the passengers seat

If ur not looking for origional Horns- id try ones off a lincoln conti- 73 up as they are small units & very loud- should be in the salvage yards.

Thanks for the help. I was trying to test the horns with just a power to one post and a ground to either negative post of a car battery. I assumed that it would work as it had power and ground. I will test them the way you suggest and see if they work.

Can you tell me where the relay would be located on the truck?

As for the horns, one has two male prongs, one wire coming from the relay, and the other going to the 2nd horn,which only has one male connector on it.

And is what I figured when there was not even a peep from either horn when I hit it was a car battery straight up.

I like you idea of the test light on the relay and wiring. I will give that a shot once it gets a bit warmer. Below zero right now so figure it can wait a bit.

Ok I will give them a test and let you know the outcome of the tests. My figure is that the horns need replaced. As for not knowing what has happened to them, they are stock as it was my grandmothers truck and I know she did not replace them.

Will keep everyone informed on what I find out.

working on the horn myself today- the wiring diagram for your 68 as well as my 66 shows a relay - mine is on the bracket directly in front of steering wheel - however if you checked each horn individually to a battery i would guess you have problem with the horns - i only have single horn and it was weak and intermittent - i grabbed a horn at the junkyard, a single wire, installed - no longer weak but still intermittent - had already pulled the relay and cleaned the contacts - pulled the switch mech in steering wheel and cleaned and applied deoxit 5 - have a couple more things to check but i know at least the horn is good - oo3

The horns ground through the body. The one horn with 2 wires is so they could supply power to the other horn as you noticed.
If the horn is still attached to the van, with a battery connected to the body (ground), connect a jumper wire to the terminal. Horns pull quite a bit of power, so there should be a small spark.
If the horn is off the van, use one jumper wire from battery "-" to the mounting bracket (make sure it's to bare metal) and battery "+" to the terminal.
If nothing happens, connect a light between the jumper wire and the terminal. If it lights, the horn has continuity (a complete path). If it does not, wiggle the connections to make sure it's not just a bad connection. If none of this makes the horn work, there is usually a Phillips screw with a nut at the base somewhere on the horn. Try turning it small amounts (1/8th of a turn) in each direction.

Other methods
http://www.ehow.com/how_4425039_troubleshoot-car-horn.html
http://www.popularmechanics.com/cars/how-to/maintenance/1272506

Thanks for the updates. I am going to get some pics of them so everyone can see what I have and will show and post the results of it. Had planned to work on it last night as I got kicked out of house due to tupperware party, but got to babysit grandboy, so will do the testing tonight..

Here are a few pics of the horns for anyone that is looking to see what a high / low horn would look like. Plan on working on adjustment screw and testing per instructions given

Both horns


close up of horn with both tabs

when my horn didn't beep i checked that it had juice flowing threw it away and went to advance and bought a $11. universal horn and installled it, hey hope this one last 45 more years !