I think I have a caliper issue. When you lightly apply the brakes, the car darts to the right hard. When you let off of the brakes, it then darts to the left. I bled the brakes and got some air out of the right caliper, but none out of the left. Can a caliper piston get stuck on the way out and not go any further out. I know that when they stick that they will go out but not release.