My 98 Bravada, until this morning, was having a hard time starting first thing in the morning. Would turn key on and off 2-3 times, could hear fuel pump, and finally start, but would sputter and run rough for a couple of minutes, then run good rest of day. But this morning go to start and now can't even hear the fuel pump and engine is not even attempting to start. The motor is a 4.3 if that matters, have not checked fuel pressure yet either. Have checked other threads but didn't see anything on this particular problem. Any help would be appreciated.