The contact owns a 2017 Ford Escape. The contact stated while driving at an undisclosed speed, the service warning light illuminated. Additionally, the heating system stopped blowing hot air. The contact stated that upon checking the coolant level, the contact noticed that there was no coolant in the reservoir. The contact added coolant to the coolant reservoir. The contact stated that the vehicle was experiencing excessive coolant consumption. Additionally, the contact stated while driving from a complete stop, the vehicle hesitated while responding. The contact stated that there was white smoke coming out of the exhaust pipe while idling and while driving. The vehicle was taken to an independent mechanic, where it was diagnosed with coolant intrusion in the spark plugs and cylinders. The contact related the failure to Ford TSB Number: 19-2375. The dealer was contacted and informed the contact that the vehicle might not be covered. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 77,000.