Something may not be right with your height sensor. It is located in close proximimty to the left rear control arm. You may want to remove left rear wheel to look things over. Also, the ALC compressor will run for about 5 seconds or less every time you turn ignition on.
Just to let everyone know, I got the rear shocks changed out (took me about an hour and a half start to finish) and it'* back to a like new ride. I also did the front rotors/pads, which were ready to be changed out. I tell ya, it'* like a new car again!!
I used Monroes and got them at Advance Auto for 73.00 including tax.