2002 Bravada sitting low in the rear

Crap this thing is pissing me off. Wife and kids have the flu and she hasn't drove the Bravada in a few days when I get home from work and pull in the drive way the thing looks like its getting ready to pull a wheelie. I figured that where she hadn't drove it the air bags have leaked out (or something) and as soon as I stuck a key in it the air compressor would level it back out. No luck. Can't hear the air compressor running and I check the ECAS fuse and it looks okay. I drove it around for about 20 minutes hoping it would correct itself but no luck. I disconnected the battery for 5 min hoping that would do something - no luck. I found this link about the check valve sticking but I can't hear the compressor run so I don't think that is my problem.

http://brakeandfrontend.blogspot.com/2007/04/alldata-bravada-letting-you-down.html

Anyone have an idea?

Thanks,
Scott

Yes, you need to replace the compressor located behind the passenger rear wheel. Not too difficult to replace. I have an 02 Bravada, and had to replace it at approx. 80000 miles. It was completely rusted from water and snow getting thrown on it from the wheel. The rear end was nearly rubbing the ground. I found a low mileage unit for about $90 online.

THANKS!

Where online did you find one?