i have a 1999 ford f650 with a 5.9 cummins engine first i had to put a clutch in it then i had to a transfer pump and injection pump on it then the crankshaft ring broke and they broke the oil pressure switch while working it replaced it now the only way it will start is starting fluis it will run about 45 min then dies and wont start without spraying its pulling three codes they cant find test procedures for #73 #251 #254 help