Fuel Pump Quit.

[Bogle45]

Alright, so I have a 2000 Silverado with a 5.3. The fuel pump quit back in March, I replaced it with a GM fuel pump and everything worked fine.

Last Saturday it started having trouble. Anyway, it is not working at all now. I have put a new GM fuel pump in the tank, tried a different relay and fuse.

Does anyone have any ideas as what else to check?

There are four wires going to the fuel pump as well as 3 wires for a ground plug.

I believe there is a black, gray, purple and orange. Does anyone have a wiring diagram to see which wires are supposed to be getting 12V?

 

Also, has anyone taken apart the Junction Block located in the Electrical Center under the hood?

[bossier62guy]

Alright, so I have a 2000 Silverado with a 5.3. The fuel pump quit back in March, I replaced it with a GM fuel pump and everything worked fine.

Last Saturday it started having trouble. Anyway, it is not working at all now. I have put a new GM fuel pump in the tank, tried a different relay and fuse.

Does anyone have any ideas as what else to check?

There are four wires going to the fuel pump as well as 3 wires for a ground plug.

I believe there is a black, gray, purple and orange. Does anyone have a wiring diagram to see which wires are supposed to be getting 12V?

 

Also, has anyone taken apart the Junction Block located in the Electrical Center under the hood?

 

Service manual for the 02 shows the following: Pin A - PPL - fuel level sensor signal, Pin B - GRY - Fuel Pump Supply Voltage, Pin C - BLK - Ground, Pin D - ORN/BLK - Low Reference