No power to fuel pump

2003 BUICK RENDEZVOUS
200,013 MILES • 6 CYL • AWD • AUTOMATIC
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TED SAHM
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  • 3 POSTS
No power to fuel pump. Pump does work, wiring harness is good. Replaced fuse and relay. Cleaned connectors at main harness connector. Replacing connector would mean splicing wires. How or what else can I do?
Jun 3, 2017 at 1:09 PM
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CARADIODOC
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  • 34,306 POSTS
Hello,

It sounds like you are losing power at the relay or the relay is not getting energized. Here are the wiring diagrams for the fuel pump and engine so you can see how the system works and a guide to help you test for power.

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. We are interested to see what it is.

Cheers
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Jun 3, 2017 at 2:44 PM
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TED SAHM
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  • 3 POSTS
Used the pump wire harness and jumped from good battery. Pump squirted nicely and hummed beautifully.
Jun 3, 2017 at 5:15 PM
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CARADIODOC
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  • 34,306 POSTS
Can you please check fuse #1 for power? Here is a guide and the location.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (Below). Please let us know what you find.
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Jun 3, 2017 at 5:25 PM
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TED SAHM
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  • 3 POSTS
Yep the fuse was melted! I got a new fuse and cleaned up the connections everything works great! I love this site.
Jun 4, 2017 at 3:33 AM
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CARADIODOC
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Nice work, we are here to help, please use 2CarPros anytime.
Jun 5, 2017 at 8:21 PM