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Horn not working when running. #2510075
06/18/18 05:55 PM
06/18/18 05:55 PM
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fullmetaljacket Offline OP
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fullmetaljacket  Offline OP
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The horn on my 73' Coronet seems to only work when the car is off, but when ever I start it and drive, I press, press, press and no horn. What gives?
Something reversed?
Burnt fuse?

Not an electrician by any means, so be nice guys.

Re: Horn not working when running. [Re: fullmetaljacket] #2510080
06/18/18 06:08 PM
06/18/18 06:08 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
RapidRobert Offline
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Lincoln Nebraska
We're always nice! ground the terminal at the horn relay that goes to the coulumn & see if it sounds. clean/check your terminals for tightness. make sure the coulumn is grounded (it might have a short pigtail for this with a ring terminal at each end). Jump fire to the horn power in terminals.


live every 24 hour block of time like it's your last day on earth
Re: Horn not working when running. [Re: fullmetaljacket] #2511284
06/21/18 12:41 PM
06/21/18 12:41 PM
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Omaha Ne
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TJP Offline
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TJP  Offline
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Omaha Ne
I was going to be a smart a-- and suggest walking grin

My guess would be the contact ring /roller on the back of the steering wheel needs cleaning. This provides the ground path from the horn button/contacts to the relay. When it gets dirty horn operation becomes intermittent beer

Re: Horn not working when running. [Re: fullmetaljacket] #2511329
06/21/18 02:24 PM
06/21/18 02:24 PM
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ohio
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ruderunner Offline
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New problem or been like that?

Could be a wiring problem, either lack of power key on or a ground going away key on.

Will it do the same thing if the key is in run but the engine is not running?


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Re: Horn not working when running. [Re: ruderunner] #2511379
06/21/18 04:10 PM
06/21/18 04:10 PM
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fullmetaljacket Offline OP
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fullmetaljacket  Offline OP
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Good points. I'm gonna go test later today in all key positions.

I just cleaned all electronic ignition grounds and mounts along with all vacuum hoses earlier today while waiting for alternate side of the street parking.

As far as the horn, It does it like clockwork. Running, no horn. Off and key position off, HORRRRRRRRN!







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