'99 concorde stalls

['97de'ville]

I am working on a '99 chrysler concorde. It stalls while driving as though out of gas. Went to check it out crank no start. no fuel pressure in fuel rail. beat on gas tank while cranking and nothing. Cycle key a few times and then crank again it started. Drove the car home. On the way cut out again. crank crank nothin. check fuel rail no fuel again. Swap a couple relays underhood I believe fuel pump and wiper relay. had same # on them. worked for a little bit and died out again. no fuel press. Installed a new fuel pump lifetime warrenty from Bosch. seemed to wk fine drove it about 15 miles and cut out again just like before.