71 Vette Horn Going Off

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Jul 19, 2020 | 07:36 PM

david71vette

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From: Texas

71 Vette Horn Going Off

Hey all -

I have been working on my 71 vette for a while. The horn has been driving me nuts and I even relented and had my mechanic look at it. I have a telescoping / tilt column, I replaced the contact plate / shim and the horn relay. The horn will kick on and stay on if I accelerate quickly of decelerate quickly. Twice now I have had to pull over and disconnect the horn to stop it from blaring. Thoughts anyone?

Jul 19, 2020 | 08:07 PM

david71vette

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From: Texas

A pic of the horn. I looked at the wiring schematic - is the the second green wire supposed to be connected somewhere as well?

Jul 19, 2020 | 08:53 PM

MelWff

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I believe you should have two horns.

Jul 19, 2020 | 09:31 PM

bobby70

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From: Rhode Island

2 horns plus you need to shim the horn contact in the steering column

Jul 19, 2020 | 11:12 PM

david71vette

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From: Texas

Quote:

Originally Posted by bobby70

2 horns plus you need to shim the horn contact in the steering column

Thank you - does anyone have a pic showing how both horns are mounted so I can install the second horn?

Jul 20, 2020 | 09:39 AM

sullyman56

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From: Scottsdale Arizona

In 1970 models all Corvettes came with two horns. 71’s came with only one. A second horn was an option.

Jul 20, 2020 | 09:55 AM

Bikespace

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From: Virginia

I can't imagine the number of horns matters for this problem. The horn(s) is/are powered by a horn relay. Either a connection is being made inside the steering column when there shouldn't be, or the relay coil is energizing from an electrical short elsewhere.

You might find a helpful diagram in Jim Shea's papers:
http://jimshea.corvettefaq.com/?cat=5

Jul 20, 2020 | 10:34 AM

ClothSeats

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From: Northern Wisconsin

It seems that this problem is originating with the horn button on the steering wheel, but one can't be sure of that without diagnosis. I suggest removing the horn button, and then driving as before to see if the problem still occurs.