Came back from a 4 day vacation a couple weeks ago pulled up to the driveway to realize the backend of my 96 was sitting on the ground. I started it up and it went right back to normal height and when i shut it off it went back down to regular parked height. Came out this morning and saw the same thing. The car had sat from about 5pm sunday to 11am tuesday morning and the back end was on the ground again. Has anyone ever had this problem and know what i can do about it?