air ride suspension

I am considering buying a new travel trailer and have read a lot of threads about towing but none have really answered my question so far. The towing specs I got for my Envoy Denali from NADA is: Engine Specifications Type: Gas V8 Size: 5.3L/327 Horsepower: 300 @ 5200 RPM Torque: 330 @ 4000...

My ENVOY is leasing to one side. It seems as if the air ride suspension on the passenger is not rising up all the way. I can her the compressor come on, and it seems to start raising the passenger side, but does not get it level, so my car is tilted on one side. Any help or info as to what to...