The contact owns a 2019 Ford Flex. The contact stated while driving at an undisclosed speed, the vehicle started shaking excessively and the vehicle briefly hesitated. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the water pump, resulting in damages to the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 50,000.