2015 Ford Fusion: check engine light

Filed May 5, 2026 · Engine, Fuel system · NY

I own a 2015 Ford Fusion SE. I bought it used when it only had 47,000 miles on it. Over the course of time since buying it in DEC 2022 until now, it has had low coolant that I have had to address but no visible leaks. Current mileage now is 87,100 and just recently the coolant was low again and the check engine light came on for DTC P0301 -Cylinder 1 misfiring. It has had rough start ups, rough idle, decreased acceleration, and poor fuel efficiency. I have found the problem to be Coolant Intrusion – Engine Defect Concern “Coolant intrusion” is a known engine design defect in which coolant leaks into the cylinders, leading to internal damage, misfires, and eventual engine failure. After researching it I found that many other people have had the very same issue with no help from Ford. This should be a recall as this is an internal issue with the short block and something that should have been disclosed before purchasing this model/engine. The only repair that will fix the core of the issue is replacing the entire short block which costs thousands of dollars, way more than the cost of the entire vehicle at this point. Without fixing the issue, the engine will fail. Again, this should be something Ford should pay to repair, not any customer who came into this blind.

Filed Feb 8, 2026 · Engine, Transmission · GA

On 2/4/26, I experienced a slight skip while driving, But did not continue. The very next morning while in reverse, A winding sound started. Put car in drive pulled out onto main road, drove fine, not even half a mile. Stopped at sign, pulled out onto main road a main road, and car would not go, would not go in gear at all. No one was hurt, but received a few horn honks. Made it to side of road, put the car in sport/manual mode, did not help. Manage to make it about a mile up the road where I was able to safely park it in a parking lot. The check engine symbol came on a couple of weeks prior, but went away after a day. Did not come back on until this particular day 2/5/26. Nothing, no problems leading up to this. Conveniently the extended warranty went out on car 4k miles ago! And the dealership is not interested in helping me out at all. I had to have it towed to an independent shop, to get checked out, due to the dealership being booked 2 months out! I now have a car that I have only had for 1 year! With a blown transmission that I have to make payments on and can not drive!! There are no recalls, but there is a manufacturer issue, that we do not get notified about by mail or by email..? I read another complaint about this same thing, guy also making payments on a car he can not drive!!! This is ridiculous!! And heartbreaking if I can not get help with this! And you can bet the dealership will receive a less than favorable review!

Filed Nov 26, 2025 · Fuel system · 111,383 miles · MI

The contact owns a 2015 Ford Fusion. The contact stated that the vehicle was serviced under the federal safety agency Campaign Number: 23V162000 (Service Brakes, Hydraulic) and Ford Customer Satisfaction Program: 20R01, 22R01, and 25E01. The contact stated that after the vehicle was serviced, the vehicle was dropped off at the contact's residence. The contact stated that upon starting the vehicle, the check engine warning light was illuminated. The contact called the dealer, and the dealer picked up the vehicle. The contact was informed that the vehicle displayed a fuel pressure and ambient air temperature sensor issue. The vehicle was not repaired due to the cost. The vehicle was at the residence. The contact parked and stopped driving the vehicle due to the safety concern. The manufacturer was notified of the failure. The failure mileage was approximately 111,383.

Filed Oct 13, 2025 · Engine · IA

I got an engine temperature warning, then I noticed the coolant reservoir was empty. I filled it back up and everything went back to normal. I was driving down the interstate when the check engine light came on. I had a few misfires and was able to make it back to a dealership, who then diagnosed the vehicle and said it coolant intrusion due to an engine block leak. Charging over $9000 in repairs

Filed Jul 18, 2025 · Engine · 100,000 miles · WI

The contact owns a 2015 Ford Fusion. The contact stated while starting the vehicle, the check engine warning light remained illuminated, and the vehicle failed to immediately start. The vehicle was taken to the local mechanic who diagnosed and determined there was coolant inside the cylinders and informed the contact that the engine long block needed to be replaced. The vehicle was not repaired. The manufacturer and local dealer were notified of the failure, but no assistance was offered. The failure mileage was 100,000.

Filed Jun 7, 2025 · FL

While driving car it begins to shaking and unable to accelerate than cuts off, will sometimes restart and can drive but does the same thing again, during this process a wrench symbol and check engine light come on. Had spark plugs replaced the first time, still was doing it. Also the throttle body removed and cleaned continued, so replaced throttle completely it’s been 2 days no issue so far, but the car belongs to my daughter and it happened while she was driving car was purchased used a year ago, this is the first time we had this issue not sure if previous owners experienced same issues.

Filed Jun 4, 2025 · Engine · DC

I only have 85k miles on my 2015 Ford Fusion. One day the check engine light came on, my car started stalling, shaking, and making noise. I stopped the car and checked the engine- coolant was exhausted. Upon taking to get it checked- the head gasket and short block were blown/cracked. The coolant had leaked into the engine. This should not have happened on a car with this low of mileage. I did my research and this is a well known issue for Ford Fusions during this time range. I called Ford and they told me there is nothing that they could do.

Filed May 29, 2025 · Engine · CO

After check engine light and the coolant fluid low light came on, I took it to a ford dealership and was told that they found there was a coolant leak which caused the engine to fail and that the short engine block needed to be replaced and it would be 9000 dollars to repair. so we are now faced with paying for a repair that is double what the car is worth or get a new car. there was never a recall for the coolant leak even though Ford knows its a known issue.

Filed Apr 28, 2025 · Engine · 134,000 miles · CA

The contact owns a 2015 Ford Fusion. The contact stated while driving at an undisclosed speed, there was heavy white smoke coming from the exhaust pipes before the vehicle shut off unintendedly. The contact stated that there was a leak coming from the catalytic converter and the check engine warning light was illuminated. The vehicle was taken to an independent mechanic who discovered a blown head gasket due to coolant intrusion into the cylinders. The vehicle was not repaired. The manufacturer was notified of the failure and the contact was informed that there were no recalls on the vehicle. The contact was provided a case number and referred the contact to the federal safety agency Hotline to report the failure. The failure mileage was approximately 134,000.

Filed Apr 11, 2025 · Engine · CA

The engine (1.5L EcoBoost) has suffered a failure due to coolant intrusion into cylinder 3, which has led to repeated engine misfires. Trouble codes P0303 (misfire cylinder 3) and P0316 (misfire on startup) were found. The vehicle is currently available for inspection, and a diagnosis was performed by two Ford-certified mechanics using a borescope, confirming the presence of coolant in the combustion chamber. The misfires cause rough running, hesitation, and potential stalling, especially during startup and acceleration. This creates dangerous situations in traffic, such as loss of power while merging or crossing intersections, increasing the risk of a collision. Both technicians concluded the engine has coolant intrusion and recommended a short block replacement as the only viable fix. I was quoted approximately $10,000 for the repair. The vehicle has been inspected by the manufacturer (Ford), but despite acknowledging this is a known issue with the 1.5L EcoBoost engine in various Ford models, they are unwilling to assist with covering the cost of the repair in my case. The Check Engine Light initially came on intermittently and then became constant. Symptoms such as engine misfires, rough idling, and hard starts appeared around the same time, several weeks ago, and have progressively worsened since.

Filed Feb 10, 2025 · Engine · 99,500 miles · KY

The contact owns a 2015 Ford Fusion. While the contact's wife was driving at an undisclosed speed, there was an engine misfire with the check engine warning light illuminated. The vehicle was towed to an independent mechanic and was diagnosed with coolant intrusion, which caused engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the federal safety agency Hotline to report the failure. The failure mileage was approximately 99,500.

Filed Jan 13, 2025 · Fuel system · 80,000 miles · LA

The contact owns a 2015 Ford Fusion. The contact stated that while attempting to start the vehicle, the vehicle failed to start. After several attempts to start the vehicle, the vehicle started. The contact stated while driving 40 MPH, the vehicle lost automotive power and stalled. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic to be diagnosed and was diagnosed with canister purge valve failure. The vehicle was repaired; however, the check engine warning light became illuminated. The failure recurred two more times. The local dealer was not contacted. The manufacturer was made aware of the failure and referred the contact to the federal safety agency Hotline. The failure mileage was approximately 80,000.