Need help with the name of electrical wire harness

[rcollamore]

No I don't hear any fuel flowing I hear the fuel pump then on and then after a sec or two it shuts off.

Ya I've done that test too no fuel comes out at all.

And the the fuel in the gas tank is covering half of the fuel pump it's self so I think there's enough fuel.
So it can't be the fuel pressure regulator?

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[bd]

Look at it from this angle.  If fuel is not exiting the pump with the fuel line completely unplugged and open (in other words, the fuel pressure regulator is effectively removed from the system), how could the pressure regulator restrict fuel flow?  The problem is inside the tank.

The pressure regulator has no effect and cannot be tested until fuel is actually delivered and the system is pressurized.

[rcollamore]

Gotcha well then it has to do with the fuel pump itself prob a faulty pump I got. Since the dang thing turns on and no fuel comes out

[Irish_Alley]

make sure the output line on the sending unit isnt clogged

[rcollamore]

Well seemed like everyone was right in some way, the issue was the debris inside of the gas tank which clogged up the new fuel pump. So I had to drain the fuel clean out the tank( upgrading to a custom fuel cell when I find the right person to do and doesn't try to charge me a arm and a leg) replaced the fuel pump added fuel and the suburban started right up! So glad it's finally done and fixed.
Thank you everyone for your help.

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