97 Fuel Pump problem! HELP

Hi, could really use some imput here! I have a 97 Buick Regal GS that I replaced the fuel pump and relays. The car ran fine for a day or so, then stopped for gas and wouldn't restart. At the garage, car would run until a temp of about 138 and then die. After cooling down, will restart...any help would be greatly appreciated.

well it soungs like you have a bad crank sensor, tipical for acrank sensor to stop working as it gets hot, also go with the basic check for spark and fuel pressure.