possible to have internment fuel pump failure?

[PowerJunkie]

Yes, is it possible to have internment fuel pump failures? 2006 xlt v6 4.0. It's happened twice, both times after turning the engine off, it would not start, just crank and crank not even a hint of wanting it to start. The first time I got it back running I half way took down the tank, stopped and put it back up and it started back up easy. Second time, I had it towed home and when the driver unhooked it, it fired up easy.
Some people are telling me its the fuel filter, some the pump, and some that there's sediment in the tank and if I keep plenty of gas in it I should be fine (I've been doing that last part and knock on wood I've been fine so far ).
What are y'all thoughts on this??

 

[Explorer75]

Yes, is it possible to have internment fuel pump failures? 2006 xlt v6 4.0. It's happened twice, both times after turning the engine off, it would not start, just crank and crank not even a hint of wanting it to start. The first time I got it back running I half way took down the tank, stopped and put it back up and it started back up easy. Second time, I had it towed home and when the driver unhooked it, it fired up easy.
Some people are telling me its the fuel filter, some the pump, and some that there's sediment in the tank and if I keep plenty of gas in it I should be fine (I've been doing that last part and knock on wood I've been fine so far ).
What are y'all thoughts on this??

Have you done a scan?, maybe it´s storing a code. If you have another key use it to discard key problems if not when the problem repeats take out the key and insert it again and try to fire the engine.

 

[Flag Gibby]

Your symptoms make me think of a faulty fuel inertia switch and I would check that along with the fuel pressure (that will tell you if you have a plugged filter or bad fuel pump). You need a code scanner to read what the fuel pressure is on these vehicles since the port is hidden under the plastic intake manifold.

 

[2000StreetRod]

fuel pressure sensor

The 2004 and later Explorers have a fuel rail mounted fuel pressure/temperature sensor.

The PCM uses the output of the fuel pressure sensor to vary the speed of the fuel pump (to maintain the desired fuel pressure at the rail) via the fuel pump driver module (pulse width modulator).

The system is not extremely reliable. I think the fuel pressure/temperature sensor is the component that usually fails first.

I agree with the previous suggestion to read any present diagnostic trouble codes (DTCs). The PCM can determine when it is not able to control the fuel pressure and sets one or more associated codes.

The fuel filter should be replaced every 30K miles. Otherwise it will look like the one below causing premature failure of the fuel pump.

 

[PowerJunkie]

Good stuff guys thank you!! I've got my work cut out.

When you say to "read the codes" you don't mean with an OBD2 scanner is assume. Can you elaborate?

 

[2000StreetRod]

read the codes

Most discount auto parts stores will read the DTCs free in hopes of selling you parts to fix your problem. Write down the codes and post them.

Where in Northern California are you? I grew up in Chico.