Horn not working

[Birchwood]

My horn on 30 A Tudor is not working, hasnt worked since I got the car a few years back. the horn works on the bench and if I apply ground while its mounted on the car. I replaced the horn button and checked for continuity at the end of the horn rod. All the lights work as they should, the spring is good on the horn connection and the connection is clean. Any suggestions would be greatly appreciated.

[Brentwood Bob]

Ground bad. Light bar attachment would be my first cleaning connection. You already found the problem.

[Bob C]

The original horn doesn't ground through the light bar. It grounds
through the blue and yellow wire from the horn button.

[Brentwood Bob]

Thanks, still sounds like the ground.

[30ccpickup]

You got me curious so I did some googling and this is what I found on the horn button.

http://1929modelaford.blogspot.com/2...model.html?m=1

[Bob C]

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Originally Posted by Brentwood Bob

Thanks, still sounds like the ground.

I agree, maybe the contact at the light switch.

[Brentwood Bob]

The tabs can work harden, and snap off. Marco mentioned heating the tabs to anneal them.
Probably screw up the plating. I have managed to break off tabs. Been a long while since I disassembled a horn rod. Fiddley business.

[Birchwood]

Thanks for the input I am going to play with some more this week I will post if I figure it out. Thanks again

[chap52]

My daughter isn't working either. Says "not to panic" that she still has a few weeks left on her "covid" $728 a week unemployment.
Sorry, couldn't resist... Chap