NHTSA Complaint #11595138 — 2017 FORD FUSION

Engine light came on while driving on the highway with no other warnings or symptoms that could be noticed during standard operation. Vehicle was taken in to Ford for service the next day and it was discovered that coolant was leaking into cylinder #1 due to the design of the engine long block. Coolant intrusion into the cylinder was causing the cylinder to misfire, as well as engine overheating. If I had not taken the vehicle in for service immediately, overheating would have continued, leading to engine failure while actively driving. THIS IS A KNOWN ISSUE BY FORD AFFECTING SOME OF THEIR 2.0L ECO BOOST ENGINES. Ford issued a technical service bulletin (TSB 19-2346) for its technicians on how to diagnose and fix this defect in December 19th of 2019. Ford service told me the repair would not be covered in any extended coverage or powertrain coverage from the factory.