Hello,
I'm new here and i have a 2022 Expedition that i bought when i sold my 2016 Expedition Platinum. I can tell you my 2016 was a better car. In 100,000 miles i had it to the shop only twice. It was an awesome vehicle. I have read the posts and answers about the vibration and loud exhaust issues. My 2022 does the same thing. Disappointed from day 1! I have changed tires (Michelin LTX MS) and I have changed wheels (factory came with the machine aluminum 12/18 spoke), had the front half shafts replaced, alignments. Its exhausting the way it drives. I am here to tell you nothing has worked. I still feel the vibration and i have just turned 27,000 miles. My thinking is is a drive shaft, maybe a transfer case, or exhaust vibrating against something? When i accelerate getting on the highway its smooth but soon as i settle in at 75, 76, or 78mph and set the cruise - I can feel it. I grabbed a 23' Platinum today form the dealer and its the same way. a little tighter because new but still has the slight vibration.
I might look for a low mileage 2018 or 19 Navigator. Not sure what to do.