No electrical power to fuel pump starter or gauges

SMILLS98823

MEMBER
1997 GMC C3500
5.7L
V8
2WD
AUTOMATIC
130,000 MILES

I came home one day turned off my truck went inside to do something came back out tried to start it and I have no power to the starter the fuel pump or my gauges. The radio has power the courtesy lights have power. I have checked all grounds and positive cables. I have checked all fuses and relays. What am I missing?

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
48,505 POSTS

Hello,

It sounds like the ignition switch is not working right. To confirm the issue here is a guide to help you check for power and the wiring diagrams to help you see which wires to test:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Check out the diagrams (below). Please let us know what you find.

Cheers, Ken

Images (Click to make bigger)

No electrical power to fuel pump starter or gauges

1 Reply

Please login or register to post a reply.

Sponsored links