I have tried searching, but have not had much luck. My g/f's mom has an '87 TDT w/ the 6cyl. She was driving and it lost a lot of power so she pulled over where it finally died. she could start it up but then it would die again. I figure she ran it out of fuel, so i put 1g of fuel in but still nothing. I replaced both fuel filters as she usually runs biodiesel and they needed it. I can now get it to stay running sometimes w/ my foot on the floor, but its at about 1000 rpms. it acts like it really wants to fire and run but cant. The secondary fuel filter is full but the primary is not(has some fuel). I assume its because the system neds to be primed to re pressurize the system, but can not find the priming pump. Am I on the right track, Doesit have a priming pump, where is it, anyhelp would be appreciated, oh and its in the 70-80's here, so I'm pretty sure its not the g/p's, thanx.