Question about 1997 Ford Thunderbird LX

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1997 ford thunderbird 4.6l it was running and died. it would not restart. No fuel pump action. I checked inertia switch. it was set. no pressure on fuel rail. fuel filter is almost brand new. replaced fuel pump. now there is no power to fuel pump. fuel fuses are good. power is at fuses. will start with a spray of starting fluid. i was suspecting ecm or ccrm. i have had issues with the factory alarm going off at random. 117000 miles. thanks for any input!

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  • clousermc Mar 14, 2011

    as far as i can tell the relay is good. there is a relay next to it. i switched them out. the same result. the fuel fuse in the same box is good and has power to it. thanks though!

  • clousermc Mar 16, 2011

    I tested the relay terminals as you suggested. They all lit up as you said . With the key on the ground was bright and the other two lit up well. Does this mean a relay is bad? Thanks for your help!

  • jason rosario Sep 30, 2013

    when i take my battery off its takes like up too fifteen minutes for the fuel pump to ick back on .i shake the car but eventually kicks back on



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Hi, have you checked the fuel pump relay? It is turned on by the PCM. You can try swapping it with a similar relay in the box under the hood. If that doesn't work, probe the relay socket with a 12 volt test light to see what's going on. With the key off, there should be one hot terminal in the relay socket. With the key on, there should be 2 hot terminals and one ground terminal. To find the ground terminal, hook the test light clip to battery positive and probe the socket. A grounded terminal will light the light brightly. The pump terminal should light the light dimly. The 2 hot terminals should not light the light at all. Please let me know if you have questions, and thanks for using FixYa.

1997 ford thunderbird 4.6l - jturcotte_1243.gif

Posted on Mar 14, 2011

Testimonial: "Thank you for fast response and additional diagrams!"

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  • clousermc Mar 14, 2011

    i did switch the relay with the one next to it. i have not tested the terminals with a tester. i will test in the morning. i will let you know.

  • Jeffrey Turcotte
    Jeffrey Turcotte Mar 16, 2011

    since you have swapped the relay and all the relay socket signals are good, the problem is downstream from the relay. Just for grins, pull the relay out, turn the key on, and then push the relay in to make sure it clicks when you push it in. Doublecheck for voltage at the fuel pump. If there is no voltage there, trace the wires back to the relay. You've got a hard one. :-(

  • Salvatore Camporeale
    Salvatore Camporeale Nov 26, 2013

    i`v got simile problem i`v swap the relay wich as got the wire withe blue i`m getting fire up but engine still not completely on so i decited to change fuel filter and if that not work ????? i need help

  • Salvatore Camporeale
    Salvatore Camporeale Nov 26, 2013

    i ne4ed work on more


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Posted on Mar 14, 2011


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