im new to diesels but needed one. so i got an older diesel just as a cheap work truck, ran great. i have it in my yard running and i flip the switch to use other fuel tank, just wanted to check if it was full or empty, it was empty. then i switched it back over and reparked my truck and now it when i try to turn it over... nuthn. just does the clicks for gp and wont turn over. please say its an easy fix i can do myself. im not even sure if that did anything but flipping fuel switch is only of thing i remember doing... i really need this fixed so i can start hauling stuff.