2018 Ford Fusion: check engine light

Filed Oct 26, 2026 · Engine · 138,000 miles · MI

The contact owns a 2018 Ford Fusion. The contact stated that there was an abnormal sound coming from the rear of the vehicle. In addition, the engine made a bubbling sound after turning off the vehicle. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, where an engine misfire was diagnosed, and a fuel odor was detected. The mechanic determined that the engine had failed and needed to be replaced. The failure mileage was approximately 138,000.

Filed Sep 30, 2026 · Engine · NC

Capital Ford of Wilmington diagnosed my vehicle with coolant intrusion into cylinder 2, accompanied by diagnostic trouble codes P0302 and P0316, after check engine light came on. I have been advised that the vehicle requires a complete engine replacement, with an estimated cost of $13,180.89. The vehicle has experienced sputtering and hesitation, creating concern that it could lose power or stall. These symptoms are concerning. After researching this issue, I have learned that coolant intrusion is a documented problem associated with certain Ford vehicles equipped with the 1.5L EcoBoost engine produced during the 2017–2019 period. Ford has addressed this issue through Technical Service Bulletins and Customer Satisfaction Program 21N12. I contacted Ford and was told that my VIN is not covered under the Customer Satisfaction Program. When asked why mine was not covered but other were , Ford stated that even if it is the same issue that is being recalled if my VIN is not flagged it will not be covered for any recall or assistance.I called Ford when I first purchase vehicle and asked about this recall and was told if I didn't have anything wrong with my car and no engine lights that my car was fine and to bring it in if I have any issues.

Filed Sep 2, 2026 · Engine · 122,000 miles · MI

The contact owns a 2018 Ford Fusion. The contact stated that the check engine warning light was illuminated. Additionally, there was white smoke coming from the exhaust pipes. The vehicle was taken to an independent mechanic several times, and the contact was informed that the engine was consuming antifreeze. The ignition coils and spark plugs were replaced; however, the failure persisted. The mechanic associated the failure with the engine. The vehicle was taken to a dealer, where it was diagnosed and determined that the short block was warped and that the engine needed to be replaced. The vehicle was scheduled to be repaired. The contact researched the failure and stated that it was a known issue that the manufacturer had failed to correct. The manufacturer was notified of the failure via telephone; however, no assistance was provided. The failure mileage was approximately 122,000.

Filed Aug 26, 2026 · Engine · NJ

We have coolant intrusion in cylinder 2 of our engine. This can cause highway failure of engine cuts out, car runs rough and it can become a fire hazard. We paid for a diagnostics through a ford dealer. Who we uses all the time for our warranty needs. We noticed car was starting to run rough and check engine light came on 8/5/26

Filed Aug 25, 2026 · Engine · DE

my 2018 ford fusion has catastrophic engine failure. Engine stuttering and misfires with check engine light. Low coolant levels with no visible puddles under the car. Engine overheating, could possibly catch fire. Car recently had a tuneup was told no issues at the time. Failure mileage at 109,000.

Filed Aug 12, 2026 · Engine · IA

The 1.5L EcoBoost motor has coolant intrusion problem on cylinder 3. The 1.5L EcoBoost motor sputters while driving causing the engine to be sluggish and not get up to speed when turning and might cause an accident on the highway due to the motor failing due to coolant intrusion design flaw in Ford Motor. Yes, Ford dealership confirmed the coolant intrusion problem on cylinder 3 and check engine light keeps coming on and off. Yes, the Ford dealership inspected the 1.5L engine in the vehicle and ran test to confirm the coolant intrusion problem on cylinder 3. There was no other warning lamps or symptoms prior to the failure/degrade of engine

Filed May 3, 2026 · Engine · TN

The engine has coolant intrusion. It is available upon inspection. Safety at risk due to side effects from the intrusion such as: engine overheating, misfiring, massive coolant loss that could cause an engine fire. The problem was diagnosed as a blown head gasket, but there is evidence of coolant loss and corrosion of spark plugs etc from coolant in engine. Has not been inspected by insurance or police. Symptoms started March 2026; check engine light on showing code P0303 (misfire in cylinder 3) and code for over temperature sensor. It occasionally ran hot, rough start up, misfiring, coolant loss (without external leaks), trouble accelerating, eventual service wrench light, and sometimes flashing engine light when it misfired bad.

Filed Apr 8, 2026 · Engine · MI

Coolant intrusion in cylinder 1. Confirmed by Suburban Ford of Sterling Heights, MI. Known design flaw. Can potentially cause the engine to seize, misfiring of cylinders, excessive exhaust. Codes for rich fuel mixture and cylinder misfires were found when check engine light appeared. Checked plugs and coils before a camera was put into the cylinder to confirm the coolant intrusion. Dealership and manufacturer refuse to assist with repairs even though there was a recall for certain vehicles with this exact issue.

Filed Apr 2, 2026 · Engine · CA

I was driving the vehicle on the freeway when the check engine light appeared and after a few seconds the cars engine suddenly shut off. There was a loss of power steering from the lack of engine power which made it difficult for me to steer and a sudden loss of speed which made several vehicles take evasive maneuvers to avoid having an accident with my car as I merged onto the shoulder of the freeway. After getting the car home I checked the vehicles trouble codes which appeared as P0301 cylinder 1 misfire and P0302 cylinder misfire and P0300 general misfires. I noticed a lack of coolant which I refilled and started the vehicle again to see if and how it would run. The car started but ran very rough at first and white smoke started billowing out of the exhaust. After a couple of minutes I decided to drive just down the street to my local Ford service center. They called me yesterday to tell me that the 2.0L 4 cylinder Ecoboost head gasket has failed and has allowed engine coolant to pour into the cylinder 1. The engine cylinder begins to misfire causing the engine to shake and emit white smoke from the exhaust as the coolant is burned off with the fuel. We are now seeing this safety issue and complaint with many vehicles that have the same or similar engine. They say the only remedy is to replace the long block engine with one that supposedly has a "fix" to the coolant delivery system within the engine block. Knowing what I know now, I would never have considered the purchase of this vehicle. The safety issue alone makes cars with these engines a danger to the owner and the public.

Filed Mar 28, 2026 · Engine, Fuel system · MI

- There is a crack in the engine block; coolant is leaking into cylinder 3. I am having the car taken by carvana on 3/30 and it will no longer be available for inspection, but I have record of the mechanical issues from taking the vehicle into the dealership on 3/18. - My/others safety was not immediately at risk, but I know that my engine could have blown while driving, causing an accident or even an engine fire. - As stated, issue was confirmed by dealer, and I have records of this - N/A - Check engine light appeared on approximately 3/5; was unable to have car inspected right away and continued driving. Started to get intermittent errors stating that the engine was overheating/coolant was low on 3/12. Stopped driving car more than 2 miles at a time after this. Boyfriend correctly diagnosed issue on 3/15 and I had the issue confirmed by dealer on 3/18.

Filed Mar 5, 2026 · Engine, Transmission · OH

After I bought from personal owner feb. 3rd 2025 I drove 50 miles and overheated before I made it home . The check engine light came on it showed up as a bank 1 bank 3 misfire also camshaft position sensor so I replaced these things and it still was losing coolant oil is just fine. Every time I would drive it it would still overheat I would keep putting more antifreeze in to make it home. It started to misfire very badly still loosing coolant jerking when I would try to give it gas and some times would hardly move . I changed the thermostat still the same . So then I replaced the catalytic converter still nothing changed . Took it to a shop and he looked all over it couldn't find anywhere that the coolant could have been escaping he did find and replace the vvt solenoid. Worked for a very short period. So as the problems progressed and the car wouldn't even go 3 minutes without overheating and jerking losing almost all of its power my brother put a head tester on it and conducted the test to show it has a bad head so its not able to be driven to be checked by any dealership or anything also isn't under recall . Yes it is a safety hazard when I was able to drive it was losing power I couldn't gain speed even with a full pedal so took the risk of being hit from behind if a car had come up behind me .

Filed Feb 18, 2026 · Engine · AZ

My car started rumbling and flashing the check engine light. I took it to the mechanic the next day, they tell me to contact Ford because of CSP 21N12 due to my spark plugs having coolant leaking on them and in cylinder, it was misfiring. They tell me the vehicle is unsafe to drive. I call Ford and they say theres nothing they can do. Im screwed out of a car because they closed the CSP's nov 2022 and i just got the car last year pre owned.