my 450 ford diesl heavy duty truck 2004 just died while driving why?
As much as I'd like to give you the magic "fix" for your truck there are to many things that can cause it to shut off. I work next to the diesel guy at a Ford dealer and have seen him have your model truck towed in for things a simple as the fuel filter cap left loose by an oil changer to the biggies like high pressure fuel pumps letting go. Not to be sarcastic but diesels require hands on professional help in most cases.
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