My vehicle has 47K miles on it as the vehicle sat in the garage for 2 years ( 2019/2020) during COVID, it was never used. Recently as of Jan, Feb 2025, Slowly the car started to vibrate when starting the engine and the check engine came on. Every start in the morning or between trips, the engine would vibrate significantly , having the passengers inside (including kids) get worried about what is going on!. Also, an odd smell of burning in the exhaust , as though something other than fuel was being burnt. Took it to the dealership and they confirmed, an coolant intrusion. I checked online , to my surprise, I found everywhere that a lot of customers are having this coolant intrusion into the engine on the Ecoboost Engine and there has also been several class action lawsuit against this coolant intrusion into the engine. The Ford dealership mentioned , it would cost 10K to replace an engine and that is the only solution. With the powertrain warranty being within 60K miles, I am not qualified for the warranty as it is more than 5 years old as per Ford dealership. I am worried, that it could be very dangerous, as the engine could catch fire, if left untreated and I hope Ford acknowledge this known issue and not have their customers drive this faulty engine to end up into any disastrous issue with engine fires!!.