NHTSA Complaint #11674648 — 2018 FORD F-150

In November of 2024, my truck was shaking, accelerating erratically, and felt like the transmission was slipping. The check engine light came on as well. I took it to the shop and after diagnosing that it was a misfire issue in cylinder 6, they replaced spark plugs, fuel injectors, and tried to switch out new coils. They found gasoline inside cylinder 6, and upon doing a compression test, it was well below 100%. The truck continued to have misfires in cylinder 6, ultimately leading to 0% compression in that cylinder after taking it back to the same authorship to diagnose. After researching online forums and technical bulletins, it’s clear this issue is not uncommon among 2.7L EcoBoost engines from this model year, suggesting a manufacturer defect. The cost to replace the engine (as now recommended) has been estimated at nearly $10,000. With the history of regular oil and maintenance by the previous owner and myself, I feel this is a manufacturing defect that could potentially cause harm to the driver and passengers.