Okay, I was wondering if any of you guys could help me. I have noticed that my rear end on my wagon looks fine after I have finished driving. However, after some time goes by when I come back the drivers side has dropped down a couple inches. Also, when I drive, sometimes I hear what must be the leveling pump making some noises that sound kind of like Darth Vader breathing or something. I don't know if this means that I have a leak on the system or what. Does anybody out there know what I need to check/fix?