Low air

[chunkymar]

I have a 82 FC 35 SB. "Serendipity" I have been reading the post
for over a year now and have benefited from all of the knowledge
here. I have been able to alot of upgrades repairs from reading the
forum. But now I have a problem and cannot get into the archives to
do some research so I would like some input on my problem. I picked
up the bird from storage yesterday, as usual it started on the first
crank and everything was fine. The air bags came up, the brake air
presure read over 75 the seat and step all worked fine. I drove
down the road about 3 miles turned into the the rv park and noticed
the low air light and buzzer came on. When I got to my lot I let it
idle for a few minutes but the warning never went off. My brake
preasure was down a little the step would not work. The rear bags
were up the front looked alittle low. As I touched the brake peddle
the rear air guage started going down. So I parked it right away
cuz I knew if I lost anymore air the rear brakes would lock up. I
left the engine running and tryed to go around the coach to listen
for an air leak. I couldn't hear any but with the engine noise it
war hard to tell. After shutting down the engine. I still couldn't
haer any thing. Where do I start? A day later and the rear air
bags are still up and the front look low or down. I did not dump
the air yet. Any help would be greatly appreciated.

Thanks
Jim Marsh
82 35FC