I have a 67 standard 6’5 4spd car. If I try to honk the horn I get this wimpy sound. If I put power to each horn separately they are loud and clear. Bad horn relay? or?
I don’t think 67 has a relay, but you should add one, makes a big difference.
The horns are wired direct - no relay.
Power comes from the headlight switch through the horn button out to the horns and grounds through the horn mounts.
The headlight switch power is one wire that supplies the horns, headlights, parking lights, courtesy lights, cigar lighter and headlight door solenoid.
Between the battery, headlight switch, horn button and horns there are a ton of connectors and quite a bit of wire.
I am rather biased, but rather than check and clean all those contacts and connectors, I would install a relay.
If you don’t want to do it yourself I make a plug and play horn relay kit: https://www.rccinnovations.com/index.php?show=menu-relays#horn
Could it be either a bad contact at the horn power plugs, or the contacts in the steering column? How are you testing them to get them loud and clear, just a hot wire to bat positive from horn spade? If so that should eliminate ground problem. If your taking them off the car and testing, possible ground?
I’ve found that the female spade connectors on many horn plugs are corroded. Slide a thin screwdriver to unlock the locking tab to remove the black cover and clean those clips as best as you can. No guarantee that this will work, but is quick, easy, and cheap!
I am testing horns off car direct to power, Haven’t tried power to mounted horn. Thanks for the info