Ok, done much work on this truck and now it won't start. I boke a timing belt and since fixed it, timing is on. The truck started, would run for about 20seconds then die. Now, it just won't fire at all. It cranks, but that is all. No trouble lights either. Any ideas. New: Head, valves, cam (delta), hoses, temp. coolant sensor, temperature sensor, thermostat, alternator, ect. There is no emissions on this truck either.