The most common horn problems are either a blown fuse or a bad horn relay. Both should be located under the hood in the fuse box.
my 1985 ford crown Victoria ignition has locked up! what do i do?
go to the mecanics
it depends on who you buy them from and if thier used or not
Start with a complete tune up including spark plug wires.
Put a new master cylinder on. Throw the old one away.
Remove the wiring harness from the back of your 1997 Ford Crown Victoria hazard lights switch. Remove the hazard light switch retaining screws. Reverse the process to install your new hazard light switch.
check fuse then check horn relay then check horn itself last of all combo switch
check out strutmasters.com they have what you need.
Buy a new housing....not that expensive
Look for a leaking hose, water pump, or raditor find the leak and fix it.
AnswerCan be tricky -may be dial-sensor at trans -or gear on shaft that turns sensor --even wiring or connection or the computer.
Check the Horn wiring and if this is good then replace the horn.