when i bought my 98 v6 it hesitated to start and when we got it home it sat for about a month and a half when i turned 16 and come to find out the fuel pump was bad and it wouldn't start, but it would turn over, so my dad and i checked some different things like in the engine compartment fuse box you can try switch the black relay's one's for the air conditioning and the other is for your fuel pump and if you have a third its for your fog lights, anywyas you might check that one first, then we checked fuel pressure and it was final the fuel pump was dead. without dropping the tank the quickest way to tell if the fuel pump is working is turn the key to on position and listen you should be able to hear the fuel pump kick on. Anyways most likely the fuel pump is bad, it happens alot to this generation when they get left to sit over extended periods of time.