I know this is not perfect for advice, but I noticed when I had the TSB done the dealership updated the BCM as well as replaced the springs on the actuators, and the rattle went away and it seemed the truck would start up with the valves open (truck was louder on startup). I think the biggest thing they did to solve the issue was the BCM update, because when I tuned my truck, it was almost as if the BCM reverted and literally the same day I tuned it, I had that rattle come back. I ended up downloading and paying for FDRS this weekend and getting the appropriate cable to do all of this, and I saw I had a BCM update again. After the BCM update again, my actuators seemed to act the same way as after I had the TSB done. If you guys are able to, check to see if they update the BCM as well when they conduct the TSB. It can be annoying to do so as I think the tech's need to hook the truck up to a battery tender and it took about half an hour as well for the download and application.