Have no idea what is causing truck to stall out. 70,000 miles, regular maintaince. Truck has been stalling just feels like it is reving down and then slowly stalls. Has happened under accelration, when coasting and at a stop. Does this sound like a fuel pump or filter issue? Truck runs strong otherwise

 

could be ur timing phazers on the cam shaft, possibility im havin same issues o7 250 3v 5.4 but im at 250 000km

 

there's only a million things that can cause stalling; have you cleaned your maf meter as part of your 'regular maintenance'? If not, I would start there, even if it's not related to the stalling; its the single most important sensor for the pcm. As for the fuel pump, you can track the delta fuel pressure and fuel pump duty cycle on a good OBDII scanner to get a better glimpse of what is going on, instead of guessing.

 

well ya guess i shoulda specified not to just guess n change, not a cheap fix took my ford in to the dealer they said w the codes i was gettin n the intermittent chuggle n stallin n chain noise change the phazers n while im at it do the tensioners, but allready did those. But apparently the ford dealership was just guessin when they said that bc i still get the chuggle