Originally Posted by ourflat
My coach air bags always seem to loose pressure when I least expect it, and of course, while traveling down the road. I checked for leaks and could never find a leaking air line or fitting. The air bags are manufactured from Firestone and are a high quality bag so what gives? I decided to install a remote air compressor kit made for air control systems and install it myself. This will allow me to preset the air pressure then the system will monitor for a slow air leak while keeping the pressure at my desired PSI. The kit will also allow me to add air through the same valves if for some reason, my air compressor isn't working so I'm not stuck on the road with no way to add air pressure. The onboard compressor will also allow me to have an air chuck attachment for topping off the air in the tires as needed. Nice feature!
Our bags were leaking as well, so we brought it to a local tire shop mechanic. He replaced the valve stem caps with chrome caps containing an o-ring gasket. I added air, tightened them up, and haven't had a problem since doing so two months ago.