So it got really cold saturday night. I drove the truck and parked it. Sunday morning I started it up about 12 hours after parking it the night before. Sunday was just as cold or colder. Like 5-10 degrees. It ran for a minute or two and then dies. When it was running it sounded fine. So in order to troubleshoot it I changed my fuel filter and took off my water separator on my airdog. Now the truck wont start at all. Just cranks. Airdog sounds like it's running but I swapped in a new relay just in case. So I took off the 1/2 line at the motor and turned it to key on so the airdog would run. I can hear the airdog running but no fuel came out of the line. So I guess it's safe to say I have some fuel gelled up really bad in that line from the airdog to the motor? When I had the water separator off the airdog the fuel seemed to be flowing right out of there from the fuel tank. Is there any kind of attachment I could hook to one end so I can seal an air hose to it and try to blow it out if I disconnect it from the airdog and the rail?