Horn Help (honk honk) - The 1947 - Present Chevrolet & GMC Truck Message Board Network

69CST4x4SWB · 09-13-2010, 02:31 AM

Alright, I know someone on here can help me. When I bought my truck a couple weeks ago it had a crappy looking (POS) aftermarket steering wheel on it and the horn was not hooked up. This weekend I installed a new billet wheel with a grant GMC horn button on it and followed the directions hooking it up. I noticed when I touched the horn wire to something metal it made a clicking noise under the dash or maybe on the firewall. I thought it would have made the horn honk instead. After completing the install, that was the most I could get it to do when pushing the horn button or it would do nothing at all. I am guessing the horn relay is bad! Question is, where the heck it it located and how can I test it (by-pass) to see if that is the problem? Or maybe someone else has another idea as to what the problem is?!

Thanks for all the help in advance

turner15 · 09-13-2010, 05:08 AM

I think the horn relay is on the firewall by the wire block. It is on my truck.

71meangreenc10 · 09-13-2010, 08:45 AM

Check the horn with a test light and have someone click the button, you may have a bad horn, if the relay is clicking that means the circuit is working from the horn button and the contacts are engaging. Now there could be a problem with the relay, but I have never had to replace one yet. If you get a light at the horn with the test light, bad horn or horn ground. There are only three wires at the relay, red, green, black, red should be hot, green goes to the horn, black comes from the horn button, you can cross the red and green and the horn should go off, but make sure the horn has a good ground too.

Smitty

bigsnookmaster · 09-13-2010, 08:50 AM

Mine did the same thing and I had a bad horn. The old test light will tell you in a sec if the horn is bad. Good luck

cdowns · 09-13-2010, 10:07 AM

take horn off clean the mounting spot real good that is your ground// liberally spray WD40 inside the horn to breakfree and lubricate the diaphram many times that is all that is required tto save a horn// by doing it a few times the diaphram polishes the plate and its back blowin like normal

swierker · 09-13-2010, 10:18 AM

Yeah, make sure you have a good ground at the horn. I was having the same problem and it was the ground.

nyncompute · 09-13-2010, 10:24 AM

Do yourself a favor and find a way to muffle the horn (stuffed rag) while you're playing around with it. They're designed to be annoying. Your ears and neighbors will thank you for it.

69CST4x4SWB · 09-14-2010, 03:18 PM

Thanks for all the help guys!

I tried it all and concluded that my horns are bad since I am getting power to them. Tried cleaning the ground, drowning them with WD-40 and letting them soak it up and... NO LUCK!

Next step is to replace them, I am thinking Cadillac horns or maybe air horns of some sort. Any thoughts?

Olblue71 · 01-25-2011, 03:39 PM

This forum has been great, I am having the same issue with my 71 truck. I am getting the clicking sound at the horn relay, just need to investigate the horn now.

So.Cal.Super · 01-25-2011, 03:59 PM

I added a set of train horns to the 72, with onboard air compressor and 5 gal tank. Best horn upgrade I ever did. While not on the cheaper side meaning the wife wasn't happy, she is even happy with the results and keeps hinting she wants a set for her sequoia.

KEL · 01-25-2011, 05:03 PM

Quote:

Originally Posted by So.Cal.Super

I added a set of train horns to the 72, with onboard air compressor and 5 gal tank. Best horn upgrade I ever did. While not on the cheaper side meaning the wife wasn't happy, she is even happy with the results and keeps hinting she wants a set for her sequoia.

sorry
don't mean to hijack, but where did you tuck the compressor ?

cdowns · 01-25-2011, 05:11 PM

i've always liked gettin 6volt horns(especially buicks) and using them, no need for plumbing or air tanks and loud as heck

So.Cal.Super · 01-25-2011, 06:40 PM

PM sent KEL

09-13-2010, 02:31 AM	#1
69CST4x4SWB Registered User Join Date: Sep 2010 Location: Oregon, The Beautiful Pacific Northwest (GOD'S country) Posts: 151	Horn Help (honk honk) Alright, I know someone on here can help me. When I bought my truck a couple weeks ago it had a crappy looking (POS) aftermarket steering wheel on it and the horn was not hooked up. This weekend I installed a new billet wheel with a grant GMC horn button on it and followed the directions hooking it up. I noticed when I touched the horn wire to something metal it made a clicking noise under the dash or maybe on the firewall. I thought it would have made the horn honk instead. After completing the install, that was the most I could get it to do when pushing the horn button or it would do nothing at all. I am guessing the horn relay is bad! Question is, where the heck it it located and how can I test it (by-pass) to see if that is the problem? Or maybe someone else has another idea as to what the problem is?! Thanks for all the help in advance __________________ In GOD I Trust All Others I Question!!! 1969 Chevy CST K/10 SWB (Legs) 1969 Chevy C/20 LWB (Old Gray Mare) Donor 1972 GMC 1500 Sierra Grande (Orange Creamsicle) Sold 1979 Chevy C/30 Cheyenne Flatbed Dually (FatBoy) Sold 1991 Chevy Silverado Ext Cab (LowBoy) Sold 2008 Harley Davidson Electra Glide (Black Betty) Mark ~ US ARMY VETERAN 2nd ARMORED DIVISION 67th ARMOR

09-13-2010, 05:08 AM	#2
turner15 Registered User Join Date: Jan 2007 Location: Toronto Canada Posts: 265	Re: Horn Help (honk honk) I think the horn relay is on the firewall by the wire block. It is on my truck.

09-13-2010, 08:45 AM	#3
71meangreenc10 Its a Truck Thing...... Join Date: Dec 2004 Location: Sierra Vista, Arizona Posts: 3,159	Re: Horn Help (honk honk) Check the horn with a test light and have someone click the button, you may have a bad horn, if the relay is clicking that means the circuit is working from the horn button and the contacts are engaging. Now there could be a problem with the relay, but I have never had to replace one yet. If you get a light at the horn with the test light, bad horn or horn ground. There are only three wires at the relay, red, green, black, red should be hot, green goes to the horn, black comes from the horn button, you can cross the red and green and the horn should go off, but make sure the horn has a good ground too. Smitty __________________ 71 C10 283/3SPD Full Resto 71 GMC 1500 Sierra Grande http://67-72chevytrucks.com/vboard/s...d.php?t=518599 70 C10 Suburban Former military GSA truck. 72 Chevy Blazer 4X4, Sloppy Jo, Mountain Climber. Wife says no more trucks. http://67-72chevytrucks.com/vboard/s...d.php?t=707378 72 GMC 1 Ton Motor Home, wife said no more trucks until she saw this one. Gen 3 6.0/4L80E 4.10 http://67-72chevytrucks.com/vboard/s...d.php?t=761110 68 GMC Suburban was 3/4 ton, now 1/2.Wife shook her head 71 C30 Wrecker 71 C20 Scott-Bilt As weird as it gets..BB Cheyenne AC Truck 68 GMC Long Stepside. They keep following me home 71 C20 Longhorn/Ole Yellor 69 C30 Former Motor Home, Flat Bed time

09-13-2010, 08:50 AM	#4
bigsnookmaster Registered User Join Date: Jan 2008 Location: St.Petersburg,Fl Posts: 1,267	Re: Horn Help (honk honk) Mine did the same thing and I had a bad horn. The old test light will tell you in a sec if the horn is bad. Good luck __________________ greg http://community.webshots.com/user/68406Stepside

09-13-2010, 10:07 AM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Horn Help (honk honk) take horn off clean the mounting spot real good that is your ground// liberally spray WD40 inside the horn to breakfree and lubricate the diaphram many times that is all that is required tto save a horn// by doing it a few times the diaphram polishes the plate and its back blowin like normal __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

09-13-2010, 10:18 AM	#6
swierker Registered User Join Date: May 2010 Location: Wallingford, PA Posts: 186	Re: Horn Help (honk honk) Yeah, make sure you have a good ground at the horn. I was having the same problem and it was the ground. __________________ 1970 Chevy LWB - 305/350 In Progress: 4/6 ECE drop, front discs, power brakes, Coys C5's.

09-13-2010, 10:24 AM	#7
nyncompute Registered User Join Date: Nov 2004 Location: Southern Nevada Posts: 532	Re: Horn Help (honk honk) Do yourself a favor and find a way to muffle the horn (stuffed rag) while you're playing around with it. They're designed to be annoying. Your ears and neighbors will thank you for it. __________________ 1972 K-10 SWB Cheyenne

09-14-2010, 03:18 PM	#8
69CST4x4SWB Registered User Join Date: Sep 2010 Location: Oregon, The Beautiful Pacific Northwest (GOD'S country) Posts: 151	Re: Horn Help (honk honk) Thanks for all the help guys! I tried it all and concluded that my horns are bad since I am getting power to them. Tried cleaning the ground, drowning them with WD-40 and letting them soak it up and... NO LUCK! Next step is to replace them, I am thinking Cadillac horns or maybe air horns of some sort. Any thoughts? __________________ In GOD I Trust All Others I Question!!! 1969 Chevy CST K/10 SWB (Legs) 1969 Chevy C/20 LWB (Old Gray Mare) Donor 1972 GMC 1500 Sierra Grande (Orange Creamsicle) Sold 1979 Chevy C/30 Cheyenne Flatbed Dually (FatBoy) Sold 1991 Chevy Silverado Ext Cab (LowBoy) Sold 2008 Harley Davidson Electra Glide (Black Betty) Mark ~ US ARMY VETERAN 2nd ARMORED DIVISION 67th ARMOR

01-25-2011, 03:39 PM	#9
Olblue71 454 BB Join Date: Jan 2011 Location: Alpharetta, GA Posts: 13	Re: Horn Help (honk honk) This forum has been great, I am having the same issue with my 71 truck. I am getting the clicking sound at the horn relay, just need to investigate the horn now.

01-25-2011, 03:59 PM	#10
So.Cal.Super It'll Buff Out! Join Date: Apr 2007 Location: San Diego Posts: 603	Re: Horn Help (honk honk) I added a set of train horns to the 72, with onboard air compressor and 5 gal tank. Best horn upgrade I ever did. While not on the cheaper side meaning the wife wasn't happy, she is even happy with the results and keeps hinting she wants a set for her sequoia. __________________ "Instructions are just another mans opinion" Become a Supporting Member http://67-72chevytrucks.com/vboard/payments.php Man Card Rules http://67-72chevytrucks.com/vboard/s...d.php?t=634550 72 Chevy Cheyenne Super 400 LWB

01-25-2011, 05:11 PM	#12
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	Re: Horn Help (honk honk) i've always liked gettin 6volt horns(especially buicks) and using them, no need for plumbing or air tanks and loud as heck __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

01-25-2011, 06:40 PM	#13
So.Cal.Super It'll Buff Out! Join Date: Apr 2007 Location: San Diego Posts: 603	Re: Horn Help (honk honk) PM sent KEL __________________ "Instructions are just another mans opinion" Become a Supporting Member http://67-72chevytrucks.com/vboard/payments.php Man Card Rules http://67-72chevytrucks.com/vboard/s...d.php?t=634550 72 Chevy Cheyenne Super 400 LWB



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