I have a 2000 f250 7.3L. Tuesday morning it was about 45 degrees and it would turn over but not start. So I bled the fuel lines and nothing happened after 2-3 hours on this forum i bled them again and it fired up. now this morning same thing but after dumping a couple gallons of diesel on the ground I decided to ask for help. It will turn over for days but never gets any fire. any Ideas?