i couldnt tell you where the ballast may be , but i would bet you need a fuel pump...ed jones said:It's definitiely related to fuel pressure. when the truck won't start I'm not getting the 12v feed to the asd relay coil. The only drawings i have to go by are the ones in the haynes manual, and they show the asd coil power fed from the load side of the ballast resistor, which looks like it's fed from the starter relay. The starter motor works every time,and according to the drawing the starter motor and ballast resistor are fed from the same point. thanks for any other info you can give me. by the way, do you where is that resistor is located.