GMC Repair: hot to fuel pump pigtal, correct fuel, fuel pump

Question
open fuel tank bought 3 new fuel pump but still not working but pigtail to pump working or hot please help me

Answer
what is the year, make and model of your vehicle? did you receive any type of wiring instructions with the fuel pump? I would run by autozone and get a Haynes manual specific to your vehicle. I use these in my shop. I would check it as per the wiring diagram, and verify you have the correct fuel pump.