There are 50 owner-reported engine complaints for the 2018 Ford Fusionin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
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.
I am a subsequent owner of this vehicle and it was sold to me with the known issue of coolant intrusion. Not only have I spent over $1000 in repairs. The issue is a known defect with the short block on the engine. While traveling down interstate 275 my car overheated without warning and shut off almost causing a four car collision.
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.
2018 Ford Fusion SE 1.5L EcoBoost, just purchased the car 10 days ago and I already have antifreeze that's mixing with the oil causing the car to overheat and white smoke coming from the back cannot drive the car took it to three mechanics they told me it needs a new turbo and a head gasket which will cost well over $4,000 which I don't have the money that I bought the car with I borrowed from family members so I can go back to work and I don't have money to fix it so at the moment I am unemployed because I have no vehicle to get to work this is a major problem. My father before he passed away had a 2017 Ford Escape with the same engine and he had the same problem he sold it for $1500 lost 14 Grand on it
- 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.
Leading coolant due to coolant infusion in the block of engine.
Mechanical. Coolant Intrusion on my 2018 Ford Fusion SE 1.5L ecobuster
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.
While operating my 2018 Ford Fusion, the vehicle began experiencing internal coolant loss resulting in engine misfires, rough running, and white exhaust smoke. The coolant intrusion caused engine failure and loss of reliability. This condition creates a safety risk, as it can lead to loss of power while driving, hesitation, and the possibility of engine shutdown. The defect occurred without warning and is consistent with widespread reports involving Ford EcoBoost engines. This issue is not related to maintenance or normal wear and tear but is a known design defect acknowledged through service bulletins and consumer litigation. Repair requires full engine replacement.
The contact owns a 2018 Ford Fusion. The contact stated that while driving at an undisclosed speed, the vehicle started shuddering violently, hesitated, and failed to accelerate to approximately 35 MPH. The check engine warning light was flashing. The contact related the failure to the Customer Satisfaction Program: 21N12. The vehicle was towed to the local dealer, where it was diagnosed with coolant intrusion into the cylinders. The dealer informed the contact that the engine small block needed to be replaced, but a full engine replacement was recommended. The vehicle was not repaired. The manufacturer was contacted and filed a complaint. The manufacturer advised the contact that a future report would be issued. The failure mileage was approximately 100,000.
Engine replaced due to flaw in design. I had my 60,000-mile service done and after it was completed, I started having serious issues with my vehicle. Kept getting check engine light cylinder 2 misfire. I took my Fusion back to the dealership, and they advised me that my engine had to be replaced. Apparently when they put my vehicle under pressure during the service it caused the coolant to leak into my engine. I have researched this and found many complaints with the same problem. Unfortunately, the owners of the other Fusions (like me) found out their vehicle was no longer under warranty, and they had to foot the entire bill. Luckly for me, I had purchased the Ford Extended Warranty, and my out-pocket pocket is $100. I was told by the dealership that Ford is aware of this issue but has not issued a recall. My service advisor was absolutely shocked when Ford authorized the necessary repairs in a couple hours berceuse it normally takes a few days to get authorization. I have owned this car since it was new and have always kept up with the required maintenance. They gave me a rental vehicle and said it would be about 7 days before the repairs are completed.
The contact owns a 2018 Ford Fusion. The contact stated that upon starting the vehicle, there was an abnormal rattling sound coming from the engine with white smoke coming from the exhaust system, with the check engine warning light illuminated. Additionally, the message “Service Vehicle Soon” was displayed. The vehicle was taken to a local dealer, where it was diagnosed, and the contact was informed that the engine was faulty due to coolant intrusion. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 84,112.
Coolant is leaking into the cylinders and causing overheating and no start.
The contact owns a 2018 Ford Fusion. The contact stated that after the engine was replaced, there was an abnormally loud banging sound coming from the engine compartment. The vehicle was taken back to the local dealer, who diagnosed the vehicle with a cracked engine flex plate. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 59,851.
I would like to respectfully request that my 2018 Ford Fusion, with the 1.5L EcoBoost engine, be considered for inclusion in the customer satisfaction programs related to the engine issues I'm experiencing. Despite my vehicle not being initially listed, the problems I've encountered, including the diagnostic trouble code P0302 and the coolant leak into cylinder #2, suggest that it may be suffering from a similar defect or design flaw that the program aims to address. Given the safety risks associated with the current condition of my vehicle, I believe it would be fair and reasonable to include it in the program and provide the necessary repairs or replacements to ensure the vehicle is safe to operate. I would appreciate your assistance in facilitating this process and exploring options for resolving this issue in a manner consistent with the treatment of similar vehicles.
The contact owns a 2018 Ford Fusion. The contact stated that while driving out of the driveway at 5 MPH, the engine light illuminated. The contact stated that the vehicle was difficult to start. The contact stated that the failure was like Customer Satisfaction Program: 21N12. The vehicle was taken to the local dealer for an oil change, and unknown engine repairs were completed. The vehicle was repaired, but the failure recurred. The vehicle was taken back to the local dealer, and it was determined that the engine needed to be replaced. The vehicle was not repaired. The dealer referred the contact to the manufacturer for assistance. The manufacturer was contacted and the referred the contact to the NHTSA Hotline. The manufacturer declined financial assistance, and stated that the issue would be escalated to the negative feedback department. The failure mileage was approximately 69,000.
Engine failure due to coolant leaking into cylinders. This is a known issue. Also Ford has issued a bulletin on this. but no recall yet! I still own 10k on my car and now a blown engine.
Coolant intrusion, coolant and oil is mixing causing my car to run hot. Engine light keeps coming on, repairs to multiple pumps replaced, water pump replaced, spark plugs replaced, radiator replaced, thermostat replaced. Ford dealership tried replacing all the above vehicle is still running hot. Now claiming I need a new engine.
The contact owns a 2018 Ford Fusion. The contact stated that while driving at various speeds, there was white smoke coming from the rear exhaust. The check engine warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed with coolant intrusion into cylinder #3, low coolant, and an overheated engine. The vehicle was not repaired due to the cost. The contact related the failure to TSB: 19-2208. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 76,000.
The contact owns a 2018 Ford Fusion. The contact stated that the check engine warning light was displayed on the instrument panel. The vehicle was taken to an independent mechanic, where a code reader determined that there was a misfire in cylinders #1 and #3. The vehicle was taken to a dealer, where the engine misfires were confirmed, and the engine's long block needed to be replaced. Upon investigation, the contact discovered Technical Service Bulletin: 22-2229; however, the vehicle was not covered under the TSB. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The contact was referred to the NHTSA Hotline to file a complaint. The failure mileage was 88,300.
Showing 1–20 of 50 complaints
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