'93 Suburban fuel system

[Speedo]

I have an intermittent problem that I'm trying to track down and I need some information. Vehicle is a '93 Suburban 5.0 liter w/4L60e, problem is the fuel pump quits working from time to time and by the time I get to it it is working again. I need to get a wiring diagram for the fuel pump relay. Fuel pump works fine and the relay works fine but for some reason the relay isn't turning on when it should but only intermittently.

Gus

 

[dave w]

I don't have the schematics for the 93 Suburban. The 95 wiring did not change for the fuel pump.

dave w

 

[eagle mark]

I have an intermittent problem that I'm trying to track down and I need some information. Vehicle is a '93 Suburban 5.0 liter w/4L60e, problem is the fuel pump quits working from time to time and by the time I get to it it is working again. I need to get a wiring diagram for the fuel pump relay. Fuel pump works fine and the relay works fine but for some reason the relay isn't turning on when it should but only intermittently.

Gus

Intermitent problems suck to diagnose, I feel your pain!

But for fuel pump, and seeing your in alaska, the envirment leads to bad grounds and there is a ground that comes from the gas tank to frame rail. I would look their first. HTH!