Question about 2001 Ford Explorer Sport Trac

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2001 explorer sport , fuel pump? vacuum leak? 619 scan tool data provided, any suggestions/solutions

The problem is I can jump in and it will start first try, fuel pump is heard activating, idle is rough, feels like truck is about to die, pumping on the gas usually causes it to catch and smooth out......after 10 minutes or sometimes less than that truck starts to sputter, step on throttle it dies faster, sometimes when stepping on throttle before it dies helps and truck is able to rev up and then back to idle and not die. But most times stepping on gas when it begins to sputter after running for 10 minutes or so causes it to die once it dies it doesn't start back up and when key is turned on and off, no fuel pump activation noise. I am at a loss for solutions based on the fact that the next day when I attempt to start the truck, cycle key on and fuel pump is heard.............and then the same routine all over again with the sputtering, and sometimes catching, sometimes not and dying out on me immediately when feathering throttle, and then not start again, and no fuel pump noise is heard from several cycles of the key. But if I let it sit and come back the next day, same routine, starts, fuel pump is heard, bogs, feather throttle, sometimes runs/dies immediately, if it runs its never for more than 10 minutes or so, then bogs and dies, and key is cycled and no fuel pump noise, truck doesn't start until the following day......its like magic!

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The fuel pump is suspect but I believe there's also a fuel filter inline on the underside of the drivers side chassis. Fuel works off pressure so if the filter is clogged, the pressure remains between the fuel tank and the filter. Once the fuel has siphoned off between the filter and injectors, it dies but because there's positive pressure at the fuel pump, it won't come on until the pressure slowly seeps past the clog after hours. It's worth a look!

Posted on Apr 08, 2017


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