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Fuel pressure should be checked in 2 spots. First is at the fuel tank, needs to be about 5psi. Second spot is after the final fuel filter with the engine turning over, needs to be 32+psi. It can start/run with only 20psi after the final filter but the engine is under powered at that point and is...

With the fuel making it to the pump, and not out of the hydraulic head (where the 6 metal fuel lines lead out of the injection pump to the injectors) then it is usually because the button came off or the fuel cutoff plunger is sticking inside the pump. Checking the cutoff is quick. Remove the...

When the seals in injection pumps go out the fuel will leak either outside the pump or into the engine oil, but it is never a complete loss of flow through the pump. So yes the word NEVER is accurate in this regard. A mechanical failure yes but seals no. The button falling off is a very common...

Reason most of the replacement injection pumps do not have the fuel density compensator is because it is not needed and is prone to leaking fuel into the engine oil. It does not affect the engines ability to run on other fuels (oil, veggy oil, gasoline, etc). All it does is adjust how much fuel...

That's the fuel injection pump, not the injector. A common problem with them is what's called the 'button' falls off. Most likely that is what happened here and it costs less than $50 to fix in parts, at most 2 hours of labor. The injection pump on older diesel engines (non common rail) never...