Dodge Repair Questions? Ask a Mechanic for Answers ASAP
Hi, I am Mike, welcome. I'm reviewing your question.
What is the year, make, model engine?
I am not a diesel expert. I will opt out.
if you have fuel entering the high pressure pump and nothing exiting it it's the high pressure pump that has failed, i have seen the cascade valve in the back of the pump fail which causes no fuel pressure but that is serviced with the pump currently. disconnecting the cascade valve SHOULD default it to full pressure so it's likely not electrical, have you pulled any fault codes?