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Have you drilled the 1/16" weep hole in the intercooler yet? This will fix your misfire issue. This is common on the ecoboost engines.
My only dislike so far is... the owners manual doesn't fit in the glove box.
I dislike that mine isn't ordered yet
To recap my experience with my 17 Raptor, I have had issues with feeling a slight jerking motion when hitting the gas. The first time I took it to the dealer, they showed a misfire in cylinder #6 and kept the truck 8 days trying to get to the root cause, which they never really figured out. As a best guess, they replaced the spark plug hoping that might be the problem, but as it turns out, that wasn't it. I thought the jerking motion might be due to the transmission shifting up too early, but I confirmed yesterday morning by putting my car in manual mode (so the truck couldn't shift up and down on its own) that the light jerking isn't RPM related. I was able to duplicate the same feeling at 60 MPH in a variety of gears at different RPMs. As a result of such, I took a Ford Tech for a ride yesterday and he fully agrees that something isn't right. They checked to see if the truck was throwing any codes, but fortunately/unfortunately it isn't. I will keep everybody posted on what I learn if/when they eventually fix the problem.
8 days to replace a spark plug? I'd find another service department, I could replace that spark plug in about 5 minutes.
How many miles did they put on it to replace that spark plug? I'd venture to guess that was 8 days of joy riding! Hell, they could have run Baja in 8 days.