7.3 cranks for 30-40 secs before finally starting
I have a 97 7.3 that cranks for 30-40 seconds before it will fire up. Once running if I shut it off it will crank for 30-40 seconds again. This truck sits most of the time and it has 150k on the motor. The oil is new and it has nothing to do with temperature. It cranks the same whether it's -20 or 70 degrees out. I had it scanned and there are no codes and the buzz test is good. I am thinking it's the HPOP starting to go. Anyone have any suggestions?