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My 30 amp fuel fuse keeps blowing

I have looked at wire harness good disconnected the fuel pump still blows

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  • Jeff Armer Apr 25, 2017

    30amp fuse isn't for the fuel pump , fuel pump has a 20amp fuse . What number fuse is the one blowing . Fuel injectors 30amp ?

  • Jeff Armer Apr 25, 2017

    And that 30amp fuse powers more things then just the fuel injectors . Air bag , Generator , engine controls . Here is a web site for free wiring diagrams .
    http://www.bbbind.com/free_tsb.html

  • blaine  lawrencee
    blaine lawrencee Apr 25, 2017

    thankyou

  • blaine  lawrencee
    blaine lawrencee Apr 25, 2017

    thankyou

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  • Cars & Trucks Master
  • 448 Answers

If the pump is disconnected and it still blows the fuse, then you have a bad short somewhere. Time to do some continuity testing on the wiring.

Posted on Apr 25, 2017

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  • Cars & Trucks Master
  • 11,753 Answers

What make , model , year and engine size ?

Posted on Apr 24, 2017

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  • Jeff Armer Apr 25, 2017

    How to find a short , electrical testing with a DVOM - digital volt ohm meter !
    https://www.youtube.com/watch?v=QPl7gIij...

  • Jeff Armer Apr 25, 2017

    https://www.youtube.com/watch?v=2ATtwe1z...

  • Jeff Armer Apr 25, 2017

    Do you know what a fuel pump driver module is ? The PCM - engine computer uses info. from a fuel rail pressure sensor to determine how much fuel pressure thier is to the injectors . If low fuel pressure the PCM sends a message to the FPDM to turn on the fuel pump longer . You probably have a shorted FPDM , but testing is the way to find out. Watch this video !
    https://www.youtube.com/watch?v=Rwve6lXr...

  • Jeff Armer Apr 25, 2017

    Disreguard FPDM , that's not your problem , nor is the fuel pump .

  • Jeff Armer Apr 25, 2017

    After looking at a wiring diagram , that 30amp fuse is not for the fuel pump , has nothing to do with the fuel pump.

  • blaine  lawrencee
    blaine lawrencee Apr 25, 2017

    ok thankyou

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:) good luck, hope this helps

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