Just got my truck out of the shop for the second time after fuel contamination issue. Had complete fuel system replaced with FASS LIFT PUMP, main pump, injectors, fuel rails, exhaust and tune. Second trip to the shop had to replace up pipe. Drove from Houston to abeliene no problem. Once I got here this winter storm blows in. It’s snowing and getting down into the single digits. Drove to the store everything was fine. Went to leave an hour later truck turns over and fired off for a few seconds then shuts down. Someone said fuel cold be jelled? So I got a heat gun to warm up lift pump and a light to put in engine compartment. Next morning it ran a little longer and once I started pumping fuel pedal it took off and ran for about four minutes and came to a stop.hasn’t died off one time since. Should I get a scanner to see if there’s a code? I checked fuses that run to lift pump and were good. Should I check voltage to the pump? Is there a relay or any other fuses I should check?