Horn Sparking - Help

[hack1999]

66 mustang - when the horn is pressed, blue sparks shoot out. Any ideas? How do you take the horn cap off to look...not like I would see what was wrong as I am a novice just trying to learn to do some things myself. Any help would greatly be appreciated.

[thecerealcommie]

To remove the horn ring, disconnect the battery (or the 6 terminal wire plug that goes into the column) and press down and turn counterclockwise about an eighth of a turn. Depending on the strength of your spring, the horn ring can be a challenge to get on and off.

If you are seeing sparks come out from under your horn ring, it's a good bet that your contacts are worn out or you possibly need to install a relay. Most horns draw a lot of current. A horn ring contact kit is available from just about every Mustang parts house out there for a few bucks. Seems like a logical place to start.

Good luck, horns are evil by nature.

[hack1999]

Thanks for the reply. I will purchase the kit today. THANKS!

[Rev]

Could be a short somewhere in the horn circuit between the horn ring contacts (the ones that spark) and the horn relay itself or a bad relay. The sparking indicates a short circuit to me. New horn rings may not cure that.

Rev

[Elvis]

I've been watching the comments on this problem because my '67 has been doing the same thing now and then. Kind of got my attention. Anyway, I guess this is for Rev. I have not been able to locate a "Horn Ring Contact Plate Kit" for a '67 in any of my catalogs. Any ideas? Also, the relay that you mentioned - where is it located? If I need one, where should I look? I can't find one for a '67 in my catalogs. Thanks. E.

[Rev]

After consulting my '66 shop manual, it seems that the horn circuit doesn't have a relay, at least in the stock '66. I still think maybe the circuit may have a short somewhere if the rings are sparking. Does the horn honk?

I did put an after market relay in my car that operates the horns because I just had low voltage in the horn circuit. I used that to operate a relay that shot full battery voltage to the horns when operated. I did that because I wasn't getting enough voltage before that to reliably operate the horns from the original circuit. Look for a short in the circuit. If none is found, you could do what I did and just use the orginal horn circuit to trigger a relay that operates the horns.

Rev