The contact owns a 2018 Ford Escape. The contact stated that the check engine warning light was illuminated on the instrument panel. The vehicle was taken to an independent mechanic where a scan of the engine determined that the failure was related to a misfire. An independent mechanic replaced the spark plugs and ignition coils; however, the check engine warning light returned soon after the repair. The vehicle was then taken to a dealer where a diagnostic test was performed. The diagnostic test discovered coolant intrusion into cylinders #1 and #3, which caused engine failure. The contact was provided an estimate for a new engine. The vehicle was not repaired and remained in the possession of the dealer. The manufacturer was notified of the failure and the contact was provided a case number. The contact was then referred to the NHTSA Hotline to report the failure. The failure mileage was 110,000.