Question about 2000 Chevrolet 3500

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Fuel pump not working 2000 1 ton 454 chevy

I would like to know the correct voltage at the pump. I am getting 5.4 volts at the pump wireing conector with the key on. none with the key off.
should I be getting a full 12 volts ?

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  • riverpirate8 Oct 19, 2008

    thank you, I wasn't sure about the low voltage. I believe I have a defective pump.

  • laroyce2 Jan 20, 2009

    2000 sabaru legacy low fuel pressure change fuel pump twice aftermarket pump bypass fuel filter have 12volts a pump any ideas

  • Anonymous Mar 05, 2009

    Fuel pump makes noise, engine won't start at times, gas guage fluxuates. If I hit bottom of tank it starts

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  • 69 Answers

Well you won;t get any with the key off it only starts when the key is on and it should be getting low voltage what is our exact problem you are having with the pump?

Posted on Oct 19, 2008

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