Could be a fuel filter issue, but I had one that was very plugged, but still the engine ran fine.
The fuel line connection release tool is available as a set of collars at NAPA stores, and most auto parts stores. Be sure to depressurize the fuel sysetms before disconnecting the fuel lines, and a fair amout of fuel will drain out once the connections are undone, so use caution and safety.
Any Check Engine Light (CEL) displayed?
I have a 94 Ford Explorer EFI V6, automatic, 4x4 with ~160K miles on
> it. Runs great at first, about 15 min. later loses power and sputters.
> Will still drive at 20-30mph with engine sputtering. Already changed
> air filter, spark plugs and wires. Still no change. Was unable to
> change the fuel filter (need special tool?!). Any Ford gurus out there
> that might have an idea on how solve this mystery ailment? Thanks