NHTSA Complaint #11533484 — 2016 FORD FUSION

Check engine light came on as the car started riding and idling rough. Took my car to Firestone and they hooked car up to computer and pulled codes. Engine misfire in cylinder 4. They weren't confident what the issue/fix was, so they recommended that I take to the Ford dealership to have them assess. Dealing with the dealership was a nightmare and after staying on top of them for 10 days, I finally was able to get a diagnosis that it was my spark plugs. Not wanting to wait another 10 days for a fix, I took the car back to Firestone since Ford had said what the issue was. Firestone changed the spark plugs and problem was resolved. The next day, check engine came back on and was riding/idling rough. Took back to Firestone. It was a misfire in cylinder again and they changed all 4 spark plugs again thinking it might be the spark plugs. They also confirmed that the coils were not the issue. Problem was solved. Four days later, the check engine light comes back on and the car is riding rough. Took back to Firestone and they dug deeper and confirmed that coolant was leaking into the cylinder causing the misfire. They said that it is a well-known and well-documented issue with the Eco Boost engines as they have a design flaw that allows coolant to leak into the cylinder. Firestone cautioned that I needed to be careful to monitor my coolant levels as the leak into the engine will drain my levels and can cause serious engine and safety issues. They said that I would need a new engine to fix the problem as there was no other solution to stop the misfire. My car only has 79,097 miles on it! We take extremely good care and get it maintenanced regularly. I checked and there are no recalls for my car for this issue even though I can find many, many instances where others are having the same issue with this engine. Without a recall, I will be responsible for paying for a new engine even though it is a design flaw that Ford is well aware of and not an issue that I caused.