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Mike S.
Mike S., Chevy Mechanic
Category: Chevy
Satisfied Customers: 7568
Experience:  ASE Certified Master Technician
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Chevrolet C1500 4x2: I am trying to diagnose the fuel wiring

Customer Question

I am trying to diagnose the fuel wiring system on a 93 1500 4.3L. Getting power past the fuse links, none to the pump
Submitted: 2 years ago.
Category: Chevy
Expert:  Mike S. replied 2 years ago.

There is a fuel pump relay. Check for voltage to and from it first. I have a 1990 C2500 and my fuel pump relay is on the passenger side firewall, under the hood.

Expert:  Mike S. replied 2 years ago.
Here is the wiring diagram, click here.