Airtech pumps usually will just quit, I suspect fuel line going back to tank kinked.
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.
Quinn
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
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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??
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?
fuel filter was replaced with a WIX
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
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.
I'll check for kinks
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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