My 2011 Ford Edge has 98k miles on it and has never had any clutch or trans issues until recently. It only happens under acceleration at the higher gears (like accelerating onto the freeway). Once it's in 4th or 5th gear it struggles to engage into the next gear(s). I checked the clutch and trans fluids, both were within normal operating range and neither were noticeably dirty.
I took it to AAMCO to have them check for any codes, they found none. They also drove it around, but could not replicate the mis-shifts, so they returned the car with no solution. The frustrating part is it almost always happens when I drive it, so maybe they didn't get on the freeway and just drove surface streets.
I was thinking of doing a trans fluid exchange, but I don't want to just start throwing money at it to see what fixes it. I'm not a mechanic by any means, but I used to work on my cars a lot and do most of the upkeep and service before I had more responsibilities like a family and what not. I'm guessing it is the trans given it only happens in the higher gears, but I'm open to any advice you have.
So I was wondering if anyone else has experienced this issue or if you have some advice on how to solve this. Is it more likely to be the clutch or the trans?
Thanks in advance!