Brake Electric Antilock problems of the 2005 Dodge Ram 3500

The contact stated that in 2005 Dodge 1 ton truck the brake pedal will go completely to the floor. With the engine running. If it was depressed slightly harder than a normal stop, it will push completely down. Dealer, frontier motors, boonville mo, 660-882-8800, checked vehicle and could found nothing they could identify as a cause. However, they checked other heavy pickups, 1 ton and 3/4 vehicles new and used that were on the lot and found 3 others had the same problem, include one that was brand new. Although the truck seemed to stop normally the brakes have a different feel to them. Frontier motors called Chrysler, and to date has gotten no response or support. Although the truck will stop normally at this time it would not pass the state vehicle safety inspection because brake pedals will not go to the floor. This was a serious problem, and at this time it was being ignored.