Back in January I drove my excursion about 1 1/2 hours or so and my tank had about 1/4 left. I shut it off and went to start it about 15 min. later. It did start but was sputtering. I shut it off and it started back up and ran fine. Drove another 1/2 hour... Shut it off, went to start I and it would only crank. Sounds like it isn't getting fuel. I also tried pressing he gas pedal thinking maybe a faulty IAC but that didn't help.I waited 1/2 hour and it started an ran fine. has not done it since... Always had more than 1/4 tank left. This past weekend drove to the same place pulling my trailer. No issues at all. Coming home I live at the top of a big hill. My tank was at 1/4. Backed the trailer in and unhooked. Shut the ex down and walked away for 15 min or so. Went to put it in the garage and it started and sputtered, it did clear up after a few seconds and idled fine. I then shut it off. Tried to start it again and it would only crank. Waited a few min. and it started and ran fine. Does this sound like the fuel pump giving out?

I have a scan gauge a checked for codes.... Nothing
Garage kept hardly sees rain.
Just over 95 k miles
Only other thing is both times this happened it had sea foam in the tank

Napa says that bosch is the OEM pump. Is there a difference between motorcraft and the Bosch? Is one better?

Could this also be a symptom of a crank sensor going bad or a cam sensor.

Update...
Took it in to my local mechanic that also has a v10 excursion. He hooked up fuel gauges and a computer to monitor the engine and codes while driving. He said everything is well with in the range of the specs. He will drive I for a coupl days to see if he can reproduce the issue.

Where do I go from here with out just guessing what's wrong?

 

If you fill it up from a 1/4 tank how much does it take? Wondering if the level is actually lower and depending on the angle of the truck it could suck up a little air. If the fuel pump is going bad you should get a lean code (p0171 or P0174) on one or both banks. The comment about it only doing it with Seafoam present is a little strange - but it may be loosening sediment up at or near the bottom and causing a bit of a restriction. If the fuel pump does go I would clean the tank and also replace the fuel filter.

 

30 gallons from 1/4 tank. Since it has a 44 gallon tank I think the gauge is correct.

 

Well I guess I will start with the pump, filter, and relay. If that doesn't fix it then I will move to the cam and crank sensor. I would do all at the same time but would like to try to eliminate them one at a time to narrow it down. Any other suggestions?

 

Pump,relay, and filter replaced today. Camping trip this weekend should tell me if it has fixed the issue or not. Crossing my fingers...