I've got a 2002 Suburban with Autoride. By the way, thanks for the post. I ordered a new compressor today. Now back to my problem. Sometimes when the car is cranked and put into reverse the back windshield wiper moves from its resting block like it is going to wipe. It then retracts back to the off/resting block. It also does this when the fog lights are turned on. Has anyone ever heard of this or have any ideas?