[qcj]

Another place to check for leaks is at the push, pull generator door valve.  I sprayed mine and had bubbles all over the housing. Tried to tighten the screws, but did not help.  The air hose connections were not leaking.  On my coach the valve is a Norgren part # X3066522 and is $75.00.  It also looks like one can also buy a repair kit.