NEK5
3/4 ton status
anyone know what the name of the air pump you can use that runs off your pcv valve????? then it goes to air tank then air horn????

diesel4me said:They do sell air compressors powered by vacuum for air horns..they won't allow you to hold the horn on for long without running out of air,unless you add a fairly large tank..it'll go WAHHHHHHHhhhhhhhhh.......
Our "roach coach" that used to bring food to us at the junkyard had air horns from a semi,but the cheesy 12V air compressors didn't last very long,nor would they blow the horns very loud..he ended up using an empty 20lb propane tank with those conversion fittings to make an air tank out of it--(you could use a store bought air tank as well)..he used to borrow the air hose at a few of the stops to "refill" his air tank..it worked pretty well actually...we eventually gave him a factory Caddilac air suspension compressor to pump the tank up when we got a later Coupe Deville as scrap
,and it worked great..![]()
