2017 Ford Fusion Titanium 2.0L Ecoboost purchased brand new. Coolant intrusion into Cylinder #1, causing a misfire,registered in Vehicle Health Alert system; check engine light on. Liberty Ford dealership was notified within the first week of the 1st misfire. Autozone found fault code P0301. Code scanner suggested replacing cylinder #1 spark plug. If misfire cont., it stated to replace Coil on cyl #1. All four spark plugs were replaced and Coil for cylinder #1 was replaced. Veh.began to exhibit a low coolant level, white exhaust smoke & rough running. Coolant fumes were entering the veh. cabin. Coolant added as soon as "Engine Coolant Over Temperature" dash alert. Diagnostic completed at Firestone Complete Auto Care: Determined "Cyl 1 is full of coolant & misfire occurring due to engine burning coolant.TSB out for this issue stating engine block replacement will be needed. Recommend dealership*** Manufacturer's recommended maintenance.⦠They provided a copy of TSB 22-2229 and stated Ford Manufacturer should replace entire engine (Long Block). I contacted Ford Manufacturer. They stated several times that "this is a KNOWN ISSUE". They stated a diagnostic must be done by a Ford Dealership and submit financial asst. request. They found code P0301 as well as overheating codes are present, coolant level low. Mode 6 shows multiple misfires on cyl1...found same diagnosis. TSB 22-2229 covers this condition, engine build code is 910 and meets criteria." Veh avail for inspection up