Hi I have a 1991 Chevy k2500 sub model seliverado with a 5.7 l v8 4 wd ext cab 2 door.

I need a diagram of the connectors that go from the fuel pump sending unit to where it connects to on the chassis or the main wire harness as my fuel gauge all ways reads full or if you can tell me why it all ways reads full and how to repair it i would greatly apperactie it.

Thank You

Michael

 

Whenever the gauge reads all the way full or empty all the time, it usually means that the sending unit is bad and it needs to be replaced.

Removing the fuel pump sending unit is as simple as dropping the fuel tank and pulling the unit out of the tank.