'07 powerstroke died and wont start ughhhhhh
 

Okay so last month I went to a funeral(sad to say). Drove my '07 f 350 powerstroke. And it drove fine . Shut it off for about maybe an hr if that . Came back out started it to warm it up before putting my kids in it . Walked in the place and back out within 15 mins and it died on me. Tried to start it again and it would turn over and crank but no go or smoke. Towed it to my house and bought two new batteries,glow plug modules. Took out the turbo and cleaned it . Also saw that two injectors were loose tighten them up new alternator as well . Went to Ford dealer and had them fix the connection wires to the batteries. and Still crank but will not start!!!!! Please someone help me I'm a mother of two infants n that trucks my only means of transportation