7.3 diesel wont start here`s why (turn volume down at 2:25)

sorry cellphone vid blury started ran drove, ran low filled wile running grabed a coffee wouldn`t start changed filter mud inside changed injection pump injectors glowplugs glowplug controller lines and fuel solinoids on pump nothing so changed head gasket and charged batterys, and i fired up with ether pump could be 180 out still this is at full throttle update it ran fine after we changed the starter and charded the baterys but then we had to change the alternator