The contact owns a 2020 Ram 1500. The contact stated that whenever the weather was below 50-degrees, after refueling the vehicle, the gasoline started spilling out of the fuel filler neck. The contact stated that refueling the fuel tank slowly prevented the gasoline from spilling out of the fuel filler neck. There was no warning light illuminated. The vehicle was taken to a local dealer to be diagnosed, and the contact was informed that the fuel pump and gas tank were faulty and needed to be replaced. The vehicle was repaired; however, the failure persisted. The manufacturer was notified of the failure. The approximate failure mileage was 30,000.