After replacing fuel pump car will not stay running

Good morning,

Did it do this prior to the repair?

Why did you replace the fuel pump?

Is the theft or security light on when it starts?

Roy

It worked fine before I did the repair. I replaced the fuel pump because the float wasn't working. my gas gauge wouldn't read only like that comes on as a check engine light but it's on when you turn the key but but did not start the car.

Okay, Is the theft light or security light on?

https://www.2carpros.com/articles/how-to-reset-a-security-system

Roy

No.

Okay, then you need to test the fuel pressure to be sure the pump is good.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Roy

I test the pressure and it's reading about 15 with the key in the on position.

15?

You need a fuel pump.

Roy

Fuel Pressure (Key ON, Engine OFF) .................... 345-395 kPa (50-57 psi)

Is it possible that I could of bought a defective fuel pump? the one I put in is brand new.

Yes, it is very possible. It happens more than you know.

As long as you do not buy a Carter fuel pump, you are good.

Roy

I exchanged my fuel pump for a new one. I got fuel pressure now, my gas gauge works but I still have the same issue cranks runs for a couple seconds then cuts off.

What is the pressure to be sure?

Roy

With the key on about 55.

Okay, did you do the reset procedure I sent you for the key?

If you had the battery cable off, the key may have forgotten the password.

Roy

Don't know how to do the reset procedure.

I attached a guide for you way back. Open the guide and follow the instructions.

Roy

I did what you told me and now my truck is fixed. Key needed programmed. Thanks a lot for help I really appreciate it.

You are welcome.

always glad to help.

Roy