when going at higher speeds (55+) my engine, i noticed yesterday, would do a little hiccup thing. to me, it feels like a fuel delivery issue. either a clogging fuel filter, or dying fuel pump. with 214k miles on the clock, i have no idea whats been replaced..anyway, thats my thinking. its not a surge, or jump..it feels like a momentary dead spot, as if its not getting fuel...thats the best way i can describe it, and again only at higher speeds. confirmation?