i have a 2001 f-150 supercrew 4x4,today when my wife came home from work she said that the horn started to blow then it would stop and the truck was not even running it was parked outside at her work.then while we were eating dinner the same thing happened,so i went outside and pulled the horn fuse,not sure if i should have done that or not but the sound was killing me. does anyone know what may cause this to happen?any help would be appreciated.

 

mine was doing that and come to find out it was my battery . my horn would blow and when i would start the truck all the gauges would go crazy. maybe test the battery and see if that is it.

 

ok thanks, i will check the battery.