NHTSA Complaint #11713158 — 2016 FORD FUSION

My car is having a problem with the a coolant intrusion into the intake so coolant is leaking into the engine, this being said there was a recall for my car a while ago when I did not own the car and I believe it was never replaced or taken care of. When I went to the ford dealership they are saying that there is no recall for my car. The car misfired once which is one of the symptoms, I got my spark plugs replaced, my check engine light came on again for a different problem, I got my intake replaced it ran fine for 4 days and now I am back with the same problem 4 days later. Doing some research I believe that there is a cracked cylinder head or failing gasket. Ford did have a recall on my engine coolant intrusion but like I said prior they are saying there is no recall for my engine which is why I am confused about it. All of my engine problems are leading to this recall that was never fixed on my car or was looked over in my engine. Any help on this would be great thanks