[fastfredracing]

I have not started my dually in 2 months. It has sat outside through one of the coldest winters we have had in a long time.
This truck runs awesome, and always starts , no matter how cold it is. I can usually start it below 10 deg, without even cycling the glow plugs.
I go to start it this morning, and no love. Batteries are up, and cranking at normal speed. I can hear the normal relays cycling.
I try priming the pump, charging the batteries, and plugged in the block warmer. Came home at the end of the day, still no start, Truck is warm, and batteries are 100% .
I noticed this morning, and tonight, that my tuner was not lit up. It usually comes on with the ignition key. I also noticed that the tach did not show cranking.
Just for giggles, I unplugged the tuner ( it piggybacks in the ecm harness) , and just like always, the truck fired right up, and sounds normal.
We had just done a 3500 mile trip right before I parked it. It was running perfect, and the tuner has worked flawlessly for the duration of my ownership.
Like the rest of the north, we have had sustained periods down around zero for weeks on end here.
Think the cold could have killed it?