I have noticed during the past several weeks that my 01 T and C (3.3L), while accelerating, there seems to be about a 3 second, 2 or 3 horsepower loss, and then it goes away for about 5 seconds, then returns in same interval. I only notice it while accelerating. Everything seems to be running fine, motor-wise. It did seem to start shortly after having the transmission fluid and filter changed, but wasn't sure if that had anything to do with it or not. There is 160,000 miles on it. Also, does anyone know if the fuel filter on the 3.3s is in the tank or is it external?