1978vett

Can someone tell me where the horn relay is on a 78 Vette ? Thanks

GIMMEMO23

I assume it's like a 79 and under the dash to the left of the steering column. Not the most comfortable place to access.

MakoJoe

It is always easier to pull the drivers side seat when working under the dash on these cars. 4 Bolts and seat is out of the car in less than 10 minutes. Then you have all the room in the world to lay down on the floor board with your feet up into the cubby space and poke around under the dash.

0Willcox Corvette

Here.. this will show you.. You can reach this pretty easy too.

1978vett

Do I just take the small button off the steering wheel to get to the horn or do I pull the ring off too ???

MakoJoe

I just replaced the horn switch in my 1977 about a month ago. You can pry off the horn at the steering wheel with just pulling on it hard or using a screw driver wrapped in cloth and prying it off. Pops right off. This is the part I replaced.

The ring and horn switch assembly is 3 screws after you remove the cover on the steering wheel.

http://www.ecklerscorvette.com/corve...1975-1982.html

1978vett

Do I need to take the small plastic button off first or just pull the big ring off ?

Easy Mike

I'm not sure what you're calling the "small plastic button." The crossed flags emblem on the horn button should not pull off. It's part of the horn button.

1978vett

So I would need to pull the bigger round red part off ??

1978vett

tried a new relay and stilll nothing,, looking through the forumI found some ways to test the horns to see if they acually work and they do.. They also worked with the relay off and jumpering some of the wires in the connector that the relay plugs in to.. Is there any way to test the contacts or connections under the horn button ?? Thanks

MakoJoe

Purchase the parts I listed early in the post.

You may have to reuse the horn plunger because the one I found in my kit to be too long and the horn sounded off consitantly after I installed everything in this kit. I had to do mine twice. Good Luck fixing your problem

http://www.ecklerscorvette.com/corve...1975-1982.html

2wheelin

My horn stopped working a couple of weeks ago. I checked the switch, relay, and horn. I discovered that the spring that is wrapped around the "eyelet" was CORRODED. The spring appears to me to be an important part in losing the circuit to energize the relay and horn. I just ran some steel wool over the corroded end, which was down in the bottom of the eyelet- hole.

I suspect the very high humidity we had here on the east coast contributed to my problem. Time to put that AC in he garage to keep the moisture down.

Careful putting it all back together. The spring must push the eyelet onto the tab of the upper assembly.