Question about 2004 Chevrolet Tahoe

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I have put two fuel pump in my 2004 Chevy Tahoe it still won't start bill has no fuel pressure pump will not run I have power to the pump and 5 v reference

Is there a fuse besides the relay

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  • Chevrolet Master
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If you got 12v to the fuel pump when you try to start it that mean you fuse and relay are good on thing left your ground no good

Posted on Apr 03, 2015

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Yes, there is a fuse besides the pump relay, but if you have battery voltage at the gas tank connector for the pump when cranking the engine over, the fuse must be good. And the 5 volts you see on another wire is from the dash fuel gauge to the sending unit.

Also, I think the relay would be good also, if you have power to the pump. Is it battery voltage? If so, check the ground for the pump. Did you use AC Delco or Delphi brand pump? Either of those should be good. Other brands sometimes cause problems for GM vehicles.

Posted on Apr 03, 2015

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  • Chevrolet Master
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Replace the fuel pump relay.

Posted on Apr 03, 2015

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