My horn is impossible to use too. Went to the dealer, he said theyre all like that. I told him he has his work cut out for himself.
Suffice to say, nothing got done about it.
As a side note, I have some (4) brand new Grover air horns for sale. Actually theyre my brothers. Theyre 25" long, and the bell on the horn is 6" dia.
They were in a storage shed for about a year, so theyre a little dusty. I chrome polished one of them ,and they look brand new. Never been on a truck.
I dont know what these things go for, so I'll sell them for $75. 00 each shipped conus.
You could PM or e mail me. I'm putting them in the classified today.
Ad # 2279.
Eric