I had just driven my wife's 03 Mach a few miles the other day...After a perfect/normal start, (it doesn't see the road but every few months, if that) it first acted like it may have been trying to get fuel, (sputtering/hesitating, etc) and then died right there in the middle of the roadway. After that, it refused to start again, it would turn over all day, but just would not start. I'm thinking...Fuel Filter? I changed it today and it fired right up...For about 2 minutes..Then it began sputtering, ect., and then died and again would only turn over without starting....Since I know now that it's not the fuel filter, I'm open to suggestions as to what to check out next..I've checked the fuel-pump cut-off just in case, and it was not "tripped"...Suggestions, please!