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05-11-2020, 03:57 PM
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#1 |
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Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,178
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Horn stuck on
I have a 1970 with a factory column and square body wheel. I pulled the horn cap and the spring and contact but the horn stays on. Anyone have any ideas to look for when I pull the wheel? Only option seems to be a short in the wire in the column. Turn signals work fine BTW. Its a non-tilt column.
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"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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05-11-2020, 04:54 PM
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#2 | |
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The Older Generation
   
Join Date: Aug 2006
Location: Montezuma, Iowa
Posts: 25,849
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Re: Horn stuck on
Quote:
How about a little background on the problem, when did it start, what if anything has changed on the truck.... etc., Throw us a bone here. LockDoc
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Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - |
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05-11-2020, 05:06 PM
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#3 |
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Registered User
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,985
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Re: Horn stuck on
There's a relay between the horn button and the horn. Pull the relay and hook up a test light - your neighbors will thank me.
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I have sworn upon the altar of God, eternal hostility against every form of tyranny over the mind of man. - Thomas Jefferson |
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05-11-2020, 07:17 PM
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#4 |
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Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,178
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Re: Horn stuck on
Ok - So I got the truck with the horn unplugged and the battery dying.
I unplugged the relay and now the battery doesn't die anymore, but I want to fix the horn. The relay clicks when its plugged in and unplugged. I removed the horn button and the contacts from the wheel. That didn't work, still stuck on. That's the background.
__________________
"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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05-11-2020, 07:27 PM
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#5 |
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Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,659
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Re: Horn stuck on
You either have a stuck relay or a short to ground inside the column. Unplug the turn signal harness then plug the relay in again
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05-11-2020, 07:28 PM
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#6 |
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Registered User
Join Date: Jun 2013
Location: Somewhere
Posts: 3,128
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Re: Horn stuck on
Trace the wire that activates the relay to where it's getting grounded. Sounds like it might be flopping around under the wheel, or things aren't put together right in the column to make the horn work. It can be a puzzle.
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05-12-2020, 01:19 PM
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#7 |
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Registered User
Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,178
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Fixed!
Got it fixed.
The retainer on the replacement turn signal switch that holds the spring in for the horn contact, it would touch the column bearing housing and stay grounded when you pressed the horn. Filed it down and it is all good.
__________________
"Work hard, use your vacation days." 1970 C15 GMC Long Bed 1986 C20 Scottsdale 1983 K2500 Sierra Classic Suburban 6.2 Instagram: C10sofOC |
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05-12-2020, 11:38 PM
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#8 |
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Registered User
Join Date: Aug 2012
Location: St. Croix River Valley, WI
Posts: 795
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Re: Horn stuck on
Just saw this post. Is this what happened to yours?
http://67-72chevytrucks.com/vboard/s...d.php?t=765275
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Meet "Old Roy": http://67-72chevytrucks.com/vboard/s...d.php?t=707801 |
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05-16-2020, 08:20 AM
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#9 | |
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Registered User
Join Date: Feb 2018
Location: Snellville GA
Posts: 104
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Re: Horn stuck on
Quote:
This forum is an amazing resource. Posts by fellow members have saved me endless amounts of frustration. Thank you!! |
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