Question about 2001 Ford Taurus

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I have an 01 Taurus 3.0 OHV flex fuel. the car idles at around 50 PSI of fuel pressure. when accelerated it drops to 5 PSI and will hardly run. I changed the pump twice snd still the same thing. The regulator is built on the pump assembly. I dead head the pump and car runs great. any ideas. at a lost so far

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  • Paul Alan Chambley
    Paul Alan Chambley May 25, 2012

    Thats got to be a restriction somewhere,,im sure you already replace the fuel filter,,making sure its facing the right direction,,arrow forward..What do you mean you dead head the pump??

  • Richard Patrick May 26, 2012

    I restricted the flow back tot he tank by capping off the return line. made the pump create max pressure. this was just a quick test run of course.. no leaks in the system. is it possible airteck is just a bad pump?

  • Richard Patrick May 26, 2012

    fuel filter was replaced with a WIX

  • Paul Alan Chambley
    Paul Alan Chambley May 26, 2012

    Possible having a bad pump,nowadays with these cheap parts..But if you block the return and the car ran,,it might be the regulater on the fuel rail..The regulator is suppose to catch the fuel and regulate,,it might be letting the fuel run right on through back to the tank..Ive seen this on gm a couple of times..Never on a ford,,but anything can happen

  • Richard Patrick May 27, 2012

    Regulator was my first thought as well but as it turns out the flex fuel taurus has the reulator built right in the fuel pump assembly. It was replaced twice.

  • Richard Patrick May 27, 2012

    I'll check for kinks

  • Paul Alan Chambley
    Paul Alan Chambley May 29, 2012

    I know this sounds like a stupid question,but are you sure they sold you the right pump,,being the regulator is in your tank..Because most parts store are going to pull up the one thats the mostly sold,with the seperated regulator..And if all is right,,the computer probably is in control of the regulator,,and you may have to test the circuit to make sure the computer is commanding it..



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Airtech pumps usually will just quit, I suspect fuel line going back to tank kinked.

Posted on May 26, 2012


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Posted on Jan 02, 2017


Quinn Texada

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SOURCE: where is the fuel pump relay on the 95 ford taurus

Hello , fuel pump relay location is in the relay box by the radiator. The fuel psi regulator is on the fuel rail itself. The regulator looks like a small disk about 1.5inchs in dia. It will have a vacuum line running to it.


Posted on Jan 23, 2010


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SOURCE: 2.9 Ford engine. Loss of fuel pressure and

Its possible that its the pressure regulator. But its more likely that its the fuel pump or even the fuel filter You say it olny starts to run bad when you give it more gas. If it were the pressure regulator then it wouldn't matter becaues what that dose is keep the fuel pressure constant under all driveing conditions. Although the problem could be to much fuel witch could mean the regulator is allowing to much fuel to enter the system. Pull some plugs out and see what they look like they should be a tan color if the engine is running good if there gas fooled wet and black then its is to much fuel if there kind of white then its running to lean and its not enough fuel and you should check the delivery system pump and all filters well good luck

Posted on Jan 16, 2011

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