2005 F250 V10 gas Super Duty. Cranks but does not start in cold weather. Truck is from warm weather area now in freezing weather for first time. No pressure from fuel pump. Pump changed, same problem.

The truck was diagnosed at Ford dealership. I am told it was analyzed by the computer and determined that their was no pressure from the fuel pump. They replaced the fuel pump. The vehicle ran after being inside for a day and after the new pump was installed. The truck was then driven outside and parked. Several hours later it would again not start. Seems to me that water in the gas tank might have frozen but all the "experts" tell me that they have never heard of such a problem, at least since fuel injection. The truck was diagnosed at Ford dealership. I am told it was analyzed by the computer and determined that their was no pressure from the fuel pump. They replaced the fuel pump. The vehicle ran after being inside for a day and after the new pump was installed. The truck was then driven outside and parked. Several hours later it would again not start. Seems to me that water in the gas tank might have frozen but all the "experts" tell me that they have never heard of such a problem, at least since fuel injection.