Just this morning to work, I noticed the Flex was crawling between 90 to 100. Thought it may have been just a fluke. Played around on the drive home and the torque is still there at the bottom end for the most part, but then the pull weakens as the rpms go up, then pulls harder again once it shifts. Old school me says fuel filter, but after looking it up online, there is no fuel filter to change?
33k miles
Never modified or tuned
no engine light.
no rough idle or studdering.
I use 93 octane from the same station every time.
Any ideas? It's under warranty still, but just hoping there's something I can check myself before handing the stealership 100 bucks.