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horn is non functional
#1334069 Sun Nov 17 2019 01:00 PM
Joined: Jul 2018
Posts: 159
M
Southern Soldier
i have a 1951 chevy 3100 with a original correct horn i found at a parts yard. it works perfectly fine when i manually short the contact to ground, but when i depress the horn button it only activates (the horn just clicks on/off not making noise). is a bad ground my issue? all the wires up to the horn button are fine but the horn button seems to be my issue. also i dont have a relay in the circuit, but since it works i dont think thats my issue.maybe take the steering wheel off and clean all the contacts? im out of ideas if someone would so kindly provide some insight.
edit: the horn has a relay built into it, so thats definitely not my issue

Last edited by Mr. Dane; Sun Nov 17 2019 01:01 PM.

- The '51 Chevy 3100 Truck with 1,72?,??? + current miles
Re: horn is non functional
Mr. Dane #1334119 Sun Nov 17 2019 08:14 PM
Joined: May 2015
Posts: 2,364
K
Housekeeping (Moderator) Making a Stovebolt Bed & Paint and Body Shop Forums
I don't believe the original horn had a relay built in. It sounds to me like you have high resistance in the ground (horn button) circuit. You could add a relay to solve the issue, or track down the high resistance.


Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos [flickr.com]
Busting rust since the mid-60's
Re: horn is non functional
Mr. Dane #1334310 Tue Nov 19 2019 04:59 AM
Joined: Jul 2018
Posts: 159
M
Southern Soldier
im calling high resistance on the ground end, because everything is new, therefore it could have a factory coating that negates conductivity. ill take the wheel off and wire brush all the contact points. its a start at best!


- The '51 Chevy 3100 Truck with 1,72?,??? + current miles
Re: horn is non functional
klhansen #1334392 Tue Nov 19 2019 11:52 PM
Joined: Jul 2018
Posts: 159
M
Southern Soldier
quick update: my truck blew up, so i no longer need assistance. thank everyone for their time


- The '51 Chevy 3100 Truck with 1,72?,??? + current miles
Re: horn is non functional
Mr. Dane #1334400 Wed Nov 20 2019 12:45 AM
Joined: Apr 2005
Posts: 8,654
Grease Monkey, Moderator General Truck Talk & Greasy Spoon
You pulling our leg? ohwell


Martin
'62 Chevy C-10 Stepside Shortbed (Restomod in progress)
'47 Chevy 3100 5 Window (long term project)
ā€˜65 Chevy Biscayne 4dr 230 I-6 one owner (Iā€™m #2)
ā€˜39 Dodge Businessmans Coupe
USAF 1965-69 Weather Observation Tech (got paid to look at the clouds)


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Re: horn is non functional
Mr. Dane #1334421 Wed Nov 20 2019 02:25 AM
Joined: Nov 2012
Posts: 294
M
Shop Shark
Originally Posted by Mr. Dane
quick update: my truck blew up, so i no longer need assistance. thank everyone for their time



https://www.youtube.com/watch?v=Gxm_qpKh7Jw


Moderated by  Rusty Rod 

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