Horny trouble

[Chevy305]

Yeah I have been having some trouble with the horn since I got the truck and inspection is coming up so I need to solve this soon. I installed a new horn and it worked for a while but now it doesn't. Not even the usual "click" from the fuse box is heard. I think I might have fudged up the contacts in the column when I fixed the turn signal. But it has worked once or twice since then. But now not even a click so I guess that means the power doesn't make it to the fuse box? I'm a little lost, someone know a few things about the horn?

 

[ryan22re]

check for power at the horn while somebody pushes the horn contacts.

then backtrack from there.

 

[cegusman]

Horn relay could be bad

 

[73k5blazer]

I second the relay. I think on most models it's mounted seperate from the fuse box, I believe mine used to be on the FBHP up high, right in front or above the parking brake lever. Later models might be different.
Horn itself is easy enough to test though, 2 wires, one to battery 1 to ground, see if it sounds.