Fuel pump priming but not pumping

[ejay]

I purchased the truck knowing it wouldn't run on it's own. It'll run if you pour gas in the throttle. It had no fuel pump when I got it. I just replaced the whole fuel sending assembly with one from MTS Company. When I turn the key to accessory, I hear the pump whine for a second or two, but when I turn the key, it'll sit there and crank. I unhooked the sending hose and put it into a container to see if it was even pumping out any fuel. It is not. How can my pump be priming but not pumping? Thanks in advance! 

 

[Warren Mohler]

are the wires switched? running bassackwards

[ejay]

The MTS Company pump came as one assembly, I didn't do any wiring. I'm not sure how to check but surely it came correct? 

[JMO413]

2 hours ago, ejay said:

I purchased the truck knowing it wouldn't run on it's own. It'll run if you pour gas in the throttle. It had no fuel pump when I got it. I just replaced the whole fuel sending assembly with one from MTS Company. When I turn the key to accessory, I hear the pump whine for a second or two, but when I turn the key, it'll sit there and crank. I unhooked the sending hose and put it into a container to see if it was even pumping out any fuel. It is not. How can my pump be priming but not pumping? Thanks in advance! 

 

The ECM is not calling for had when cracking. TPS would be my first test.

[ComancheKid45]

Double check the wiring on the pump at the sending unit, I know you said it's brand new but I've seen in more than one example of incorrect wiring on products out of the box.

[Warren Mohler]

When you checked for gas with hose pulled was that at key on "prime" if it ran at prime but no fuel pull it back out and check wires orange wire is hot at connector