1998 Chevy Cheyenne Starting

Engine Mechanical problem
1998 Chevy Cheyenne V8 Four Wheel Drive Automatic

My truck will turn over and start but shuts off immediately. If starting fluid is used, it will run until it evaporates. The truck has a new fuel pump, filter, spider vortex, all modules, fuel lines, sensors, the works. The reason for everything being replaced is becaused I laid the truck on it's side in a storm and was cut out of the cab, therefore the cab had to be replaced. When I bought the truck from a used car dealer, the fuel pump was noisy and I often had trouble getting it to start, so we decided to replace it while the truck was apart. The computer shows no codes and the fuel pressure is around 65. Has good spark and fuel.