its sounds like you have a hose or airbag problem. if the compressor kicks on, that eliminates your most costly problem. the dealer will tell you whatever will make them money. good luck.

 

Does yours ride level at least. Mine is always lower on the left side. Even when the compressor comes on the left side is always and inch or more lower and within a few minutes left side is completly empty. My ride height sensor has been replaced, the left airbag has been replaced twice, no codes have flashed and even the dealer cant tell me whats wrong. Anybody have any ideas.