I would go the fuel route first before I had any big worries. Only fuel will cause a diesel to quit like that (unless there is more to the story than you are telling).Likely a plugged screen, filter or supply pump gone bad.

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Mark
82 300SD 110k
91 Caprice SS
92 Jetta TD
97 Cadillac Concours(300hp)
84 Celebrity 4.3L diesel