Q: My 2006 F150 FX4 5.4 with 112,500 miles seems to like to hang up at 2000rpm. it accelerates fine up until that point

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seems to like to hang up around 2000rpm. it accelerates fine up until that point, with good power. once it hits ~2000 rpm it seems to lose power and really won't go any higher. It will rev higher than 2000 if i accelerate hard enough to downshift but it still feels low on power when it does.

I have replaced fuel filter, spark plugs and cleaned the MAF and throttle body.

My car has 112500 miles.
My car has an automatic transmission.

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