Coolant intrusion into cylinders and engine failure
ENGINE
117 NHTSA complaints · 2025-01 → 2026-07
“Coolant light and check engine lights kept coming on. The car was diagnosed by the Ford Dealership as Ford TSB 22-2229, which is a design flaw in specific EcoBoost engines, where an "open deck" block causes coolant to leak into cylinders 2 and 3, leading to severe engine failure”
“The vehicle's engine is experiencing coolant intrusion. As such, when starting the car, white and sweet-smelling exhaust exits the exhaust pipe. Furthermore, the coolant reservoir continually runs low;”
“The vehicle was taken to a local dealer where it was diagnosed, and the contact was advised that the engine was faulty due to coolant intrusion, and that the engine needed to be replaced. The vehicle was not repaired”