I was under the impression that Ford got a new vendor for their radiators. I have the venturi T thing and expected that would help. I live in Texas and I figured the heat was cause a pressure build-up and was the biggest reason for them to blow a seam. Now I just wonder if there is something structurally wrong with the truck. I have less then 10000 miles left until my warranty goes out. I have over 67,000 miles.