No electrical power to fuel pump starter or gauges

1997 GMC C3500
130,000 MILES • 5.7L • V8 • 2WD • AUTOMATIC
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SMILLS98823
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  • 2 POSTS
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?
Aug 12, 2018 at 1:50 PM
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STRAILER
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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
Aug 14, 2018 at 11:30 AM