How a Car Horn Works

This video shows how an automotive horn works on the inside.

[blackericdenice]

I’m 50 years old and been working on cars for 36 plus years. I just learned how a horn work.

[stephenaviaspace]

Nice video. Now I can make a homemade horn for my homemade car. Easy to understand.

[roryonabike]

You make highly informative videos. Thanks.

[marrison]

Thank you for this explanation, I don't own a car but I'm working on a baby pushchair mod and I have installed a Hella horn but don't understand the wiring of a car horn, I will follow your advice and hopefully have it working. !

[GokantheHusky]

And it's the reason why I love dual tone horns.

[sumobear]

Would the horn play lower notes if i put in a lower voltage? I was wandering cuz i wanted to put 6 harmonizing horns so ive got a choir every time i press it.

[Iaapwm]

Great video, well delivered, Many thanks from Lismore NSW Australia

[ehmurson]

thank you so much justin i love you more than my most beloved family members <3

[deeguy]

I love YouTube University. I asked myself how 'ooga' horns worked then I wanted to know about modern car horns.

[ViperJay]

Some horns are a tad different. Some horns like these Densos do ground through the mounting bracket as well as many of the older GM Delco-Remy horns, but then some require an external ground wire. Many aftermarket Fiamms require you to attach a ground wire to one of the terminals and power to the other one, usually it doesn't matter which one as they're not power conscious.

[RK-knud]

I came across your video while doing some research to repair my horn...it seems that the low note stopped working. I haven't attempted a tear down yet, but do you suspect that carbon in the contacts are what is causing the failure or would you start looking at the coil?

Thanks for your detailed explanation...it is probably the best explanation on the entire internet.

[sandyande]

Thanks Justin, can I ask since you are an 'engine guy' is there any definitive method for testing a water pump on an engine for good flow, circulation, etc cheers sandy

[andyw]

At what frequency does it vibrate? Is it dependant on the current or the spring of the diaphragm ?

THanks for awesome video!

[widhiartomobilbalikpapan]

Hello mr. Its good video.. May i take it for 10 second video .. I want explain it in my language.. For my channel.. Thank before..

[jgeorges]

Good one Justin, always good info and video yhanks for sharing my friend.

[lilikres]

Tanks for your explanation... It's good...

[matthewstorm]

So basically, a car horn operates much in the same way as a school bell. The only difference is that the armature moves a diaphragm rather than a hammer.

[harvirsingh]

Thanks a lot for this amazing explanation. Just one doubt. Which car model is this?

[osamaabdelhay]

Fantastic explanation, thank you very much and good luck.

[blackguitar]

I have a old car Horn (Seima tr8). It is only making a single tick noise. Also it is rust from the inside. What is wrong with this horn?