Note to self never let truck get below 1/4 tank
. It got air in the line. cycle key 5 times then drain valve while cycling don work. To properly bleed fuel system.....
if you have access to an air line tightly wrap a shop rag around a blow tube and stuff it into the fuel filler. Have someone release the bleeder vale on the injector rail while pressurizing the fuel tank. This will force fuel into the line at low pressure [The rag will loose some but not all the pleasure applied] and bleed the air out of the line. When fuel [with no sputtering] is flowing out of the bleeder tighten it down and you should be good to go.