2019 Ford Mustang

Head gasket blew, and car overheated immediately on the freeway, with no warning signs, and at only 43,000 miles when a failure like this should not occur. Had to find a place to pull over and be towed to avoid more engine damage. Both independent mechanic and Ford dealership has confirmed this. Official diagnosis is "Remove and replace cylinder head assembly and replace head gasket – coolant intrusion cylinder 1, P0316, P0301.” Apparently it's a known issue with this particular engine and has a pending lawsuit.

The contact owns a 2019 Ford Mustang. The contact stated that upon start the check engine warning light was illuminated. The vehicle was taken to a local dealer where it was diagnosed and the contact was advised that the engine was faulty due to coolant intrusion and that the engine would have to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 95,000.

My 2019 Ford Mustang equipped with the 2.3L EcoBoost engine developed a check-engine light, rough startups, engine misfires/rough running, and some engine knocking. The vehicle had approximately 87,453 miles. I took the vehicle to an authorized Ford dealership for diagnosis. The dealer brought the engine to operating temperature, pressurized the cooling system to 21 PSI, removed the ignition coils and spark plugs, and inspected the cylinders with a borescope. The dealer documented coolant intrusion into cylinder #2 due to a failed cylinder head and recommended replacement of the complete long-block engine due to the extent of the damage. The dealer also documented diagnostic trouble codes P0300 and P0316 for misfires, along with P008A and P018C related to low-side fuel pressure. I am concerned that internal coolant intrusion causing misfires, rough operation and engine knocking could result in significant loss of engine power or engine failure while driving, creating a safety hazard, particularly at highway speeds or in traffic. Ford Customer Relations was notified but declined financial assistance because the vehicle is outside the factory warranty and stated that there is no applicable recall for my vehicle. The vehicle has not been repaired and is available for inspection. The Ford dealership's written diagnostic report and photographs of the cylinder inspection are available.

The contact owns a 2019 Ford Mustang. The contact stated that while driving 40 MPH and depressing the accelerator pedal, the vehicle hesitated, causing the engine to overheat. The contact pulled over to the right side of the road and turned off the vehicle to allow the engine to cool down while waiting on a mechanic to arrive on the scene. An independent mechanic was contacted, and the vehicle was taken to Auto Zone to be diagnosed. The contact was informed that coolant had leaked into cylinders #2 and #3 before the failure occurred. The vehicle was towed to an independent mechanic to be diagnosed, and it was determined that the head gasket needed to be replaced. The vehicle was repaired, and the ignition coil packs and spark plugs were replaced; however, the failure persisted. The contact stated that the failure had occurred twice. The contact associated the failure with NHTSA Campaign Number: 25V828000 (ENGINE); however, the VIN was not included in the recall. The manufacturer was notified of the failure and referred the contact to the dealer for assistance. The approximate failure mileage was 124,000.

2019 Ford Mustang with 3.2 EcoBoost engine has coolant intrusion into the engine thru a defectively made engine block. Diagnosed by the Ford dealer in Hinesville,GA on August 11,2026. Car has 52,731 miles on it and has always been maintained by the local Ford service department. Car is a daily driver, no abuse or rough driving. Car is available for inspection upon request Coolant intrusion can cause sudden engine failure, loss of power and sudden stoppage at any speed. Overheating due to loss of coolant, engine fire, loss of control of the car. Check engine light came on and engine ran rough on cold start up on [XXX] & i then took it in to be checked out by Ford service. Service advisor stated that this coolant intrusion is due to a Ford known defect in the EcoBoost engines; but that there has been no recall. Only solution he offered was to have a new replacement engine installed for about $13,500. I declined the replacement. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Coolant intrusion. This particular motor has caused NUMEROUS issues with 2019 & older Ford models, specifically with the 2.3L Ecoboost engines. The Ford Motor Company should recall & replace the engines of all models affected, mine included. I spent $2200 for a new timing system, tow fees, was broke down on the side of the road when my engine overheated. I bought this car brand new. Financed $27k & owe $3900 right now. Devastated & livid describes how I feel at the present. Coolant intrusion causing hydrolock is a KNOWN issue by Ford, and they should make things right with the owners of the vehicles affected. A new motor will cost $6500. That should NOT be a cost that the customer has to pay.

The contact owns a 2019 Ford Mustang. The contact stated that while driving at various speeds, the front driver's side door suddenly unlocked and became slightly ajar. The contact immediately opened and closed the door, and then securely locked the door. The contact became aware of information related to the locking mechanism; however, the contact was unable to locate the information. The vehicle was not taken to the dealer to be diagnosed or repaired. The manufacturer was not informed of the issue. The failure mileage was approximately 82,000.