I was driving the other day and honked the horn and it did shut off. Had to drive home with it blaring. I took the horn off and checked the connections in the steering wheel. Everything looked correct. The contact spring was working properly and connections are clean. The only way for it to stop is to disconnect the horn. Could I have a problem with the relay switch? Not sure how to proceed. I'm work with a 64 k10. Thanks John


1964 K10 Fleetside Pickup Truck