Fuel Tank on 1997 Ford F-250

My front fuel tank is 3/4 full and my truck will not start. My rear tank works fine. Is there a selector switch proble or a fuel pump problem?

2 answers
Both tanks have their own pump, So either the front tank isn't getting power from the selector switch or the pump itself has failed.
if this truck has two fuel pumps. Suspect faulty front fuel pump.