I have an '04 SE 2.3 duratec 5 speed.with 94K. Lately I have hesitation when accelerating from a stop. It also stumbles a lot at start up with cold engine only. Acceleration while shifting is fine. It only happens at starting after a stop. I need to pump the accelerator when first taking off, but it never really stalls out. There are no OBDII codes and the MAF and TPS were replaced last year. Most people point towards O2 sensors, but like I said, OBDII O2 reading are fine. Others point to plugs/coil packs and gas filter. I would think a clogged gas filter would cause hesitation at all times. Anything ideas are appreciated...thanks in advance.