The contact owns a 2016 Ford Fusion. The contact stated while driving at an undisclosed speed, the check engine warning illuminated, and the message to change spark plug #2 was displayed. The contact stated that whenever the vehicle was started, there was white smoke coming from the exhaust. The vehicle was taken to another independent mechanic, where it was diagnosed with coolant intrusion in cylinder #2, causing engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact stated that weeks before the failure, the vehicle was taken to an independent mechanic, who diagnosed the vehicle and determined that the solenoid and ignition coils needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline for assistance. The approximate failure mileage was approximately 120,000.