1998 GMC Sierra "1999 pump relay" Questions

my 1999 4.3 vortec wont run will not run only if you pour gas in thottle body fuel pump  or fuel pump relay

pump on my 1999 GMC Sierra is not working. The fuel pump is not working and I checked the relay by replacing it with a known working relay, checked for fuel at the schraeder valve next to the throttle

pump relay outside under hood there is also a pump jumper on driver side single red wire with plug on end where harness comes out of firewall hook up to bypass and see if pump is working also check to

...pump relay but from experince it's the fuel pump. And changing the fuel pump isn't that hard on pickups. I have done several on the ground lowering the tank but if that dosn't sound pleasing you can ...

...pump relay. Check oil level and oil pressure. Low oil pressure,low oil pressure reading can stop the fuel pump from ran. It's a build in safety feature. If it start and ran better the add only bottle ...

pump uses a ground source to start. Is this relay the unit on the frame above the tank at the front of the box on the left side. I run a direct power from the fuse panel using the ground from the fuel

pump relay. The relay is located in the fuse panel under the hood behind the battery. Start the truck and allow it to stall. The fuel system is depressurized. Insert the relay back into the fuse panel

1999 GMC Sierra, no power to fuel pump. I just replaced the fuel pump and tried to start the truck with no success. I can not here the FP when i turn on the ignition. I check the ECM fuse and it is ...

...pump relay and the continuos power in the fuel pump arnes find the positive wire and make shure the fuel pump got a power when do you starter the . use the correct tools for that. i hope to be ...

...pump relay has issues. Swap the fuel pump relay with one of the others under the hood like the horn or ABS . It should say which one under the cover. If this doesnt help you may have a pump pressure ...