So im commin home from wal-mart in my topkick and i notice that my air keeps bleeding off every 30 seconds or so. So i got it home and parked it cuz i dont wanna burn up the compressor. I'm guessin its the cutout switch but i'm still learnin bout the whole airbrake thing. Help!

jay

 

You have a leak somewhere that is turning the compressor back on. Watch the gauges in the dash if they dont move the leak is either in the line going to the air dryer or the air dryer spit valve at the bottom leaking.