Pump running under hood after shut down
Well the car is in the shop for my prior post, but I thought I'd bring something else up while I'm awaiting the diagnosis. Ever since I bought the car there is a little pump looking thing by the front driver side fender under the hood, that runs after the car is shut down. Intitially I was alarmed since I was sure that it would kill my battery, but obviously it uses so little juice that it hasn't effected anything, so I just kind of ignore it. I asked some buddies if they have idea what it might be and they suggested that it was some kind of ait pump for the pump in the trunk. I took this at face value and have ignored it ever since.
Well today at the dealer one of the guys mentioned that I must have some kind of leak in my air leveling system. This suprised me a bit since I didn't realize I had an air leveling system. I have the little buttons that change the ride from Touring to Performance, but I always dismissed these things as "gee whiz" buttons and never paid them much heed. Does this sound remotely familiar to anyone? If this leveling system is actually there, I would like it working properly. When changing the buttons should I actually feel the difference? Any help would be appreciated. Thanks!