Hey Folks,
I had an issue last night. Truck took a few more starter turns then fired up. It ran fine, (went to my dad's about a 7 mile trip) and then when I went to leave about an hour later, she cranked over then sputterd then wouldn't fire. I checked the cut off solenoid but it was dark so I figured I'd do a more thorough trouble shooting in the morning.
This morning I checked the pull n hold...they are fine so I cracked a return fitting and turned the truck over. She fired right up. I got the truck home and have had no issues since. I did change the fuel filter but have started it at least a dozen times and no issue at all. A vapor lock is logical but it didn't get over 55 degrees here... so any ideas ?

97 3500 Auto 4.10's... Banks power pak,
Red Oak injectors, AFE,
Prime lok, Lukes links all around