Horns Stopped Working '87 [Archive] - El Camino Central Forum : Chevrolet El Camino Forums

: Horns Stopped Working '87


Al87Olathe
01-31-2004, 08:12 AM
Horns stopped working yesterday, and it's friggin' cold here in Kansas City! And, yes, I did use the Search feature and found nothing when I typed in "horn." So hopefully I won't get flamed for asking something that's already been answered.

Some idiot driving south from the auto auction with a beat-up SUV and towing a Taurus (without tow lights!) cut in front of me without using turn signals at 70 MPH on I-35 South! Went to press the steering wheel to give the guy a piece of my mind and - nothing! Pressing the switch on the wheel only yields clicks from under the dash.

Before I go on, my '87 has only had one of the two horns working for some time. I've never bothered to look into this, but now with no horns something's gotta be. But, without a garage and a potential 20" dumping of snow here by tomorrow night, I need to pick someone's brain who's dealt with this before. I don't want to waste my time outside when I can be warm in the house and watching the Super Bowl. And, be advised, I am NOT an electrician - I can turn a wrentch, but I don't know how to use a multitester.

1. I assume the clicking I hear from under the dash is the horn relay. I also assume that this means the fuse isn't blown since there is power going to the relay. Is it common for these to fail and prevent juice from getting to the horn?

2. Is replacing the relay an easy operation, other than removing the lower dash cover?

3. If the relay's clicking and getting power, does this mean that my problem may be with the horns themselves? Does this also mean I need to replace them?

Tommy
01-31-2004, 09:41 AM
I think your second horn finely gave up. Replaceing the horns are very easy. You can buy replacement horns at any car parts store. The horns should be mounted to the front drivers side fender well. One bolt for the mounting bracket & one electrical connecter.

87ElCamino
01-31-2004, 11:08 AM
...I did use the Search feature...
:) Good man.

The clicking sound you hear is the horn relay. Which means that the courtesy fuse and horn switch are OK.

Get a voltmeter. Unplug the single green wire connector at the horn. Stick your red voltmeter lead into the connector and your black lead to the negative terminal of the battery. Have someone press the horn and see if you have 12V at the connector. If you don't, then the horn relay is bad. If you do have 12V then the problem is either in the horn or the connections to the horn.

Here is a schematic (http://elcaminocentral.com/users/elcamino/schematics/horn.jpg) of the circut.

Scully
02-02-2004, 11:45 AM
There's not much I can add to Ernie's post, short of checking the shop manual, it's about the best advice you're gonna get. However, I also recently had a problem with my horn: I recently had the engine rebuilt in my '81 and only the high pitch one was blowing (sounded pretty anemic). Turns out that one of the two green wires leading into the horns had been crossed and put in wrong. After switching them, I got that two-tone blast that I had become accustomed to.

Good luck with that relay...