There are 4 owner-reported engine complaints for the 2019 Ford Flexin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Coolant Intrusion - Water pump leaked inside the engine, causing engine failure. The engine has to be replaced. This has been a known problem with this model and has been fixed/covered by the warranty.
The water pump and timing cover gaskets are faulty. The water pump is internal and causes major engine malfunction when it breaks.
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.
The contact owns a 2019 Ford Flex. The contact stated that while operating the vehicle, the engine temperature gauge increased, and the air conditioner would not blow cool air. The vehicle was taken to the local mechanic who discovered that the engine coolant level was extremely low, and that the water pump was faulty and needed to be replaced. The vehicle was repaired. Recently while driving at an undisclosed speed, the vehicle suddenly lost motive power and would not properly accelerate. The vehicle was taken to the local service center who diagnosed that the engine was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The local dealer was not contacted. The failure mileage was 65,000.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026