Shifting to a higher gear too soon.
 

Hey Guys,

I have a 2001 f150 4.6 V8 with 59000 miles on it. I have owned the truck for almost 6 months now. My problem started a few months ago when I notice that my trans seemed to be shifting to soon and not giving me any power. I then have press harder on the pedal to shift it back to a lower gear. I was thinking that it might be time to change the trans fluid. Is it an easy change? Im pretty sure the fluid has never been changed by the previous owner. Do you think this maybe the problem or is it something else.

Thanks,
Duane