Question about 1996 Ford Ranger SuperCab

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93 Ford Ranger won't start. Fuel pump not coming

93 Ford Ranger won't start. Fuel pump not coming on because the fuse for the fuel pump pops when ignition is turned on even when the power is disconected from the pump.

Pump runs when jumpered strait from the battery so the problem does not seem to be related to the pump itself..

Where is the most likely location for this electical short? Can this type of problem be caused by the ignition switch itself? Any suggestions for diagnosing the problem?

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  • David Newell Feb 08, 2013

    on my ford ranger it ended up being the EEC relay. another relay next to the fuel pump relay. the correlation was when check engine light did not come on at initial turn of key that was the indicator.that the eec relay was the problem


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I would locate the fuel pump relay,and replace it,it is most likely the relay,or the ecm,the ecm powers the relay,but the relay is most likely the problem.

Posted on May 12, 2010

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  • scstock May 12, 2010

    Actually, I already replaced the fuel pump relay and it didn't help. There is a 20 amp fuse that blows every time I turn on the ignition (even if the pump is disconnected). This fuse is identified as a fuel pump fuse.

    Also I get continuity between the red and black wires that connect to the fuel pump. Seems like these are shorted out somewhere. I get continuity at these wires even if the ignition is off. Maybe I'm looking at it wrong but I don't think I should be getting continuity between these two wires at the fuel pump end.

  • scstock May 12, 2010

    Also, what is the ECM (Does that stand for electrical control module?) Is it another relay or something else?

  • Ronny Bennett Sr.
    Ronny Bennett Sr. May 12, 2010

    This ecm is the electronic control module,the computer,it is very possible it is in the computer,Try this,un plug the injector harness from the engine,and try and put the fuse in,if it does not blow the fuse,then one of the injectors is shorted out

  • scstock May 12, 2010

    OK I'll try that and get back to you. It may be tomorrow. I have to get some more fuses.

  • Ronny Bennett Sr.
    Ronny Bennett Sr. May 12, 2010

    Ok ,I will try and help


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