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Horn Question - Mechanical

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Old 09-18-2009, 12:29 PM
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1966 L72
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Default Horn Question - Mechanical

Sometimes when I press my horn I get a little jolt. They are working fine. I am not strong on electrical items at all. Any thoughts?

Thanks,

Larry
Old 09-18-2009, 02:04 PM
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JohnZ
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Originally Posted by 1966 L72
Sometimes when I press my horn I get a little jolt. They are working fine. I am not strong on electrical items at all. Any thoughts?

Thanks,

Larry
That's usually a result of the horn circuit grounding partially through you instead of through the rag joint to the steering gear (and then to the frame); the original rag joint had a copper ground strap in it joining the upper and lower flanges for the horn ground path, and they can corrode away over time. Use a jumper wire to join the upper and lower flanges of the rag joint and see if that stops it.
Old 09-18-2009, 02:07 PM
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midyearvette
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Originally Posted by 1966 L72
Sometimes when I press my horn I get a little jolt. They are working fine. I am not strong on electrical items at all. Any thoughts?

Thanks,

Larry
could be a loose nut behind the steering wheel??...sorry i couldnt resist....
Old 09-18-2009, 04:08 PM
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it also could be the horn contact as well.
Old 09-18-2009, 06:15 PM
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woodsdesign
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I have the same problem on my 65. My ground strap on the rag joint is intact.. My column has been completely rebuilt.
Old 09-18-2009, 06:30 PM
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1966 L72
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The rag joint is in good shape, but I put a jumper on it anyway. No help. I guess the horn relay is next.
Old 09-18-2009, 06:47 PM
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Originally Posted by 1966 L72
The rag joint is in good shape, but I put a jumper on it anyway. No help. I guess the horn relay is next.
no repalce the $15 horn contact first and make sure the screws that hold it fast are clean and have star washers
Old 09-18-2009, 07:09 PM
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I have the same issue with my '62... but it is only if I push and hold the horn button... with just a quick beep it doesn't do it... I have traced the wiring and it all looks good... I have just gotten used to it.. shock therapy....
Old 09-18-2009, 07:25 PM
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Default Shocking Horn

Before you tackle the horn relay....

My horn was doing the same thing as yours:

First, it was working fine.
Then, it would intermittently shock me.
Later, it would intermittently shock me and sometimes not blow.
Later still, it would only occassionally blow.
Since procrastination doesn't pay, I finally decided to look into it.

I searched the forum for "horn" and "shock" issues, and found the same
suggestion to make sure the upper and lower steering column sections
were electrically joined and making a strong ground. It seemed in
my case that they were, even though I had no ground strap as described.

So, I took my upper steering column apart and found a few issues.

I found a dirty horn contact with a fairly weak spring under the plunger.
I cleaned the horn contact and replaced just the spring.
(It would probably be easier to just replace the whole assembly.)

I also replaced the turn signal switch for several reasons, not the least
of which was for a significantly worn copper horn contact rod/plunger.
(Lots of copper dust laying around where it shouldn't be....)

I also cleaned the contact points on the underside of the horn button itself.

After re-assembly, the horn stopped shocking me and worked much
better.

Good luck with yours!

Don

Last edited by NVaVettes; 09-18-2009 at 07:28 PM.
Old 09-19-2009, 05:07 PM
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woodsdesign
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My horn does the same thing. I have a rebuilt orginal horn contact. I did notice that the spring was weak. It also only blows when I press the lower right part of the button.
Old 09-20-2009, 01:48 PM
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4440stevesvette
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Originally Posted by 1966 L72
Sometimes when I press my horn I get a little jolt. They are working fine. I am not strong on electrical items at all. Any thoughts?

Thanks,

Larry
Mine does the same thing occasionally when I have my arm out the window. Go figure!

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