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Various Ford and Lincoln Recalls for Sudden Engine Failures
Ford Motor Company (NYSE: F) is recalling 2021-2022 Bronco, F-150, Edge, Explorer, Lincoln Nautilus, and Lincoln Aviator vehicles equipped with either a 2.7L or 3.0L Nano EcoBoost engine. The engine intake valves may break while driving, which can result in engine failure and a sudden loss of drive power.
Based on an analysis of returned fractured valves from failed engines, Ford identified that the potential root cause of the failures was engine intake valve failure due to valves that exceeded the designed specification for hardness, were brittle, and more likely to fracture. Ford determined that this was due to the supplier’s grinding processes and the sensitivity of the intake valve material to grinding processes that were not within control specifications. The intake valve material was changed for vehicles produced after 31 October 2021. The new material increased the valve’s robustness to keeper groove grinding processes outside of control specifications. Continue reading →