Sounds to me like the horn switch has failed somehow, Ron. I'd check the wire coming from it to see if there's voltage present. Unless the horn is being used, there should not be any and the insulators for that horn switch are prone to rot and fall out anytime. Long years ago I did away with the old style horn but left it in place and ran the wire from the relay to a dual-tone horn behind the grille (hi/low). The new horn gives a louder noise and is a sound I think most people expect to hear from a truck horn. At least I like the sound better...

Good luck.


~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end