The contact owns a 2017 Ford Escape. The contact stated that when the vehicle was started, the vehicle was idling roughly. Additionally, when the accelerator pedal was depressed, the vehicle hesitated with an engine misfire. The contact stated that the check engine warning light was illuminated. The contact stated that the failure was intermittent in the beginning and had become a recurring failure. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that there was coolant intrusion into the engine block, and that the engine needed to be replaced. The vehicle was repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline. The failure mileage was 80,833.