Question about 1992 Chevrolet Suburban

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92 Chevy Suburban Electrical Fuel System

We just replaced the fuel pump on our suburban after it died while driving down the road. It cranks but won't turn over, checked the throttle body, no gas pumping in. Replaced the relay, still no luck. We are getting power to the relay, but nothing to the fuel pump itself. Bad relay switch?

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  • mytigjmc Feb 22, 2009

    There is no hum, and I don't know if my husband hears a click at the relay, I don't believe he does. He has been using a test light, and on the outgoing wire, he is not getting any juice

  • mytigjmc Feb 23, 2009

    ran a jumper from battery to relay on the ignition side, pump works great! Thank you for your help!

  • Bruce Bracey
    Bruce Bracey May 11, 2010

    When you turn the key on to the run position, do you here the relay "click" and the fuel pump "hum" for 2 to 3 seconds?

    You may need an extra person to turn the key to on and you listen under the hood for the relay.

    Let me know.

    Regards,

  • Anonymous Mar 14, 2014

    gas gauge goes up and down

  • Anonymous Mar 14, 2014

    i just replaced my fuel pump and it does not work. i don't know if it is bad or if it is not getting power. how do i check?

  • Anonymous Mar 29, 2014

    car will not start don't seem to be getting power to pump

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  • Chevrolet Master
  • 1,000 Answers

I assume the fuel pump fuse is good?
The only time voltage will be sent to the fuel pump will be the first 2 to 3 seconds if the starter is not engaged. You will want to crank the engine over and check for voltage on the load side of the relay, circuit #30 at the relay.
Let me know after you check.
Regards,

Posted on Feb 23, 2009

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