WTF is going on with my horn? - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 10-21-2011, 03:42 PM Thread Starter
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WTF is going on with my horn?

I have no clue what is going on with this thing. I had the leaking windshield problem and had my horn going off like crazy and all that jazz. I got the windshield properly fixed and no more crazy electronic malfunctions anymore. Yet during this time i believe my horns burnt out and its time for inspection.

I replaced the old horns with a new one and it didn't work at first. I looked at the relays and replaced one and my horn was working like a charm. Then it just quit working again. I push the horn and i hear and can feel the Relay clicking over but no horn. The fuse is good otherwise the relay would not work and i believe the clock spring is working properly otherwise the relay wouldn't click when i push the horn. It doesn't make sense that it was working and then just quit. I literally was still in the truck testing it and got maybe 6 honks then all of a sudden nothing. I took off the horn and it works so it has to be an electrical issue. The Haynes manual isn't being a huge help right now either.

I want to put on train horns, but i need the money and need my truck. Without passing the inspection i get neither. HELP


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post #2 of 3 Old 10-21-2011, 03:47 PM
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You would have to find a diagram and trace where your wires go after the relay. I would assume it would go straight to the horn. Have you checked to see if you get power at the horn? If not there check if your gettin power out of the relay. Maybe it popped another relay.

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post #3 of 3 Old 10-21-2011, 07:29 PM
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My truck is an 03 so it may be different. But, when I installed my air horns I tapped into the horn signal from the back of the fuse panel. It was a green wire with a yellow tracer. It goes through the cab connector to the horns.


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