47-55.1 49 Chev 3100 Horn issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**mr48chev** · 11-15-2018, 02:26 AM

The majority of the time it is going to be somewhere between the horn button and the horn relay. Usually because the insulation deteriorates on the wire and it shorts out.

That is the majority though as I have had stuck relays and horns that were stuck on. If I am not mistaken the horn in my 71 GMC is still disconnected after it did the wants to honk all the time thing and I disconnected it at the horn.

I'd disconnect the wire to the horn button at the relay and see what happens as that eliminates that. Then you go from there in your trouble shooting.

11-15-2018, 02:26 AM	#7
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 16,400	Re: 49 Chev 3100 Horn issues The majority of the time it is going to be somewhere between the horn button and the horn relay. Usually because the insulation deteriorates on the wire and it shorts out. That is the majority though as I have had stuck relays and horns that were stuck on. If I am not mistaken the horn in my 71 GMC is still disconnected after it did the wants to honk all the time thing and I disconnected it at the horn. I'd disconnect the wire to the horn button at the relay and see what happens as that eliminates that. Then you go from there in your trouble shooting. __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around.

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