2019 Ford Fusion: engine overheating

Filed Oct 6, 2026 · Engine · 57,000 miles · NY

The contact owns a 2019 Ford Fusion. The contact stated that while driving approximately 30 MPH, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed with a leaking the head gasket, which allowed coolant into the cylinders. Additionally, the message "Coolant Low - Overheating Soon" was displayed, and there was black smoke coming from the tailpipe during startup. The contact stated that the vehicle was undrivable and associated the failure with a class-action lawsuit. The dealer was notified of the failure by phone and informed the contact that there was a fee for the diagnostic test. The contact declined. The manufacturer was notified of the failure by phone and filed a report. The contact was awaiting a call back from the manufacturer. The failure mileage was approximately 57,000.

Filed Sep 15, 2026 · Engine · NY

I have an overheating problem in the engine, after visiting the dealership and repair shops it was brought to my attention that this was a constant problem with the eco-boost turbo system associated with certain ford models, I could smell a mixture of antifreeze, oil (smelling like rotten eggs) and white fumes coming from the exhaust pipe and also the air vents. This also causes the engine to overheat and triggers the check engine light.

Filed Sep 9, 2026 · Engine · MO

It all started with a cylinder 3 misfire warning code, spark plugs replaced, coils replaced. Then a coolant leak. No obvious signs of a leak no cracked tubing no puddles. Just coolant leaking. Was informed I have a coolant leak intrusion and need a new engine block. I still owe $14k on this vehicle and am past my warranty. This repair is going to cost $12k. Researched and found out this is a problem for these vehicles that ford had an engineering problem with these engines.

Filed Jun 11, 2026 · Engine · FL

Misfire due to cracked cylinder wall letting coolant leak into the cylinder in the 2.0L turbo

Filed May 19, 2026 · Engine · TX

The vehicle experienced engine failure due to coolant intrusion into the cylinders on a 1.5L EcoBoost engine. Symptoms included coolant loss, engine misfires, rough running, check engine light, and eventual engine failure requiring engine replacement. The problem has been confirmed by Ford and is consistent with the known coolant intrusion defect affecting many Ford 1.5L EcoBoost engines. Ford issued Customer Satisfaction Program 21N12 for certain affected vehicles due to this exact issue. The vehicle has approximately 76,000 miles and is under the mileage limit referenced in Ford’s program, but Ford denied full coverage and only offered partial financial assistance toward the repair. This issue creates a serious safety concern because the engine can lose power, misfire, overheat, or fail unexpectedly while driving. The failure appears to be caused by a defect in the engine design allowing coolant to enter the combustion chamber. I believe this is a widespread defect and should be covered for all affected vehicles experiencing coolant intrusion and engine failure.

Filed May 14, 2026 · Engine · FL

2019 Ford Fusion with 82,362 miles- just told engine coolant leaking into the cylinder walls and engine replacement is needed. Dealer said Do not drive it! This is a known problem with this model and Ford has not recalled it. Ford is aware and have sent TS Bulletins to their service departments but why NOT recall. My daughter’s safety has been at risk and now the value is worthless Or an engine replacement. I cannot reach any leadership from Ford, just a call center which is telling me nothing can be done.

Filed Apr 17, 2026 · Engine · AZ

Coolant intrusion into cylinder #2 in my 2.0L Ecoboost engine. This gives a rough engine start and a misfire code for cylinder #2 on cold starts. After warmup, the engine code is not active and misfire goes away when the coolant is burnt and sent through the exhaust. This also caused the car to overheat as the coolant was dropping to a low level. There was no indication of the low coolant level until the overheating.

Filed Mar 3, 2026 · Engine · TX

Coolant leaking into cylinders on my 2019 Ford Fusion 1.5L EcoBoost—white smoke, rough idle, and wont start now. Ford's 21N12 program expired before I could get it fixed. Tons of owners report the same; it's a safety hazard.

Filed Feb 6, 2026 · Engine, Transmission · TX

2019 Ford Fusion equipped with the 1.5L EcoBoost engine has experienced overheating and misfire issues, linked coolant intrusion into the engine cylinders, which can lead to engine overheating and potential fire hazards. This is a KNOWN issue by Ford but they have not issued a recall, or even let me know in the 6 years that I have had the vehicle.

Filed Dec 18, 2025 · Engine · MS

My daughters’s 2019 ford fusion/4dr sdn/sel/fwd began to run hot and my son checked and notice low on coolant. He filled back up and vehicle ran with no problems. A day or so later noticed again and my husband checked again and realized again and low again and checked all and no apparant leak in lines or hoses but short drive again to check it began to overheat and check engine light came on and he read up and becoming aware of issue with this coolant leak into cylinder. He took to Sullivan Ford dealership and confirmed pressure test of coolant in cylinder # 1 and had to replace engine assembly. No offer by Ford to assist. Total cost 10,115.66 For know issue per faulty engine design that was risk for fire and safety issue.

Filed Dec 18, 2025 · Engine · MI

Vehicle has a known Ford 2.0L EcoBoost coolant intrusion / head gasket defect per multiple complaints on different forums on recently googled searches. At approximately 126,000 miles, vehicle began losing coolant with no visible external leaks, producing white smoke on startup, rough idle/misfires, and check engine light. Vehicle also began overheating intermittently. Heating system stopped working, indicating coolant flow failure. Symptoms are consistent with internal coolant intrusion into cylinders due to head gasket failure, a widely reported defect in Ford EcoBoost engines. Issue presents a safety risk due to potential engine failure while driving, loss of power, and overheating. Vehicle requires major engine repair or replacement. This failure occurred despite regular maintenance and appears to be a premature engine defect, not wear and tear. I was recently at the dealership on December 8th with no other issues detected after they replaced a part on my car that failed that I had to pay for ( a P175B-00 ). This had nothing to do with what is going on currently, they ran tests at this dealership and did not detect anything as of December 8th. This was at a ford dealership. Tests were ran and inspected by manufacturer. Fast forward to a week ago I started having the above symptoms and this was diagnosed by family-friend auto mechanic. I have had multiple issues with this car. The transmission blew at 50 thousand miles, the sun roof leaked ( the seal for the sunroof was defective) into my prnd control shifter causing thousands of dollars in damage, a P175B-00, causing my car to not be able to park, causing chaos for weeks. I have only owned this car since December 2020. I still owe 7 thousand on this vehicle and I am at a complete loss. I really just want ford to take accountability for this make and model as it never fits the guidelines for recalls on anything. I want justice for myself and others with these multiple issues coming from ford cars.

Filed Oct 20, 2025 · Engine · MN

10/2024 We noticed coolant was low. filled and kept watch. around 95,000 miles 6/2025 Just hit over 100,000 miles. engine misfire cylinder 3. brought it in, coolant was low, filled and replaced spark plug. 8/2025 engine misfire cylinder 3. brought it back in completed cleaning kit 8/2025 engine misfire cylinder 3. brought back in (2 weeks later). checked further and recommended a valve replace, and we needed to take it to a Ford dealership to replace 10/2025 brought into Ford dealership, coolant leaking into engine, need new engine. Ford will not cover. This is a safety issues as engine could cause fire, if coolant runs to low.