Newmar/Spartan Chassis Air ride control valve inverting

Without seeing a picture of your HCV setup, you may want to look at the length of the arm on the valve. Not the length of the vertical arm that attaches to the axle. If the arm, or attachment point is too close to the rotation point of the HCV then you can get this problem. The solution is to move the attachment point further away from the center of the HCV. This will dampen the response time of the HCV but will solve the problem. You may have to slightly adjust the ride height when you do this