Engines on 1.4 million Honda vehicles might fail, so US regulators open an investigation

The National Highway Traffic Safety Administration (NHTSA) is investigating engine failures in 1.4 million Honda and Acura vehicles. The issue, involving connecting rod bearings in 3.5-liter V6 engines, can lead to complete engine failure. While Honda recalled 250,000 vehicles in 2023, the NHTSA received 173 complaints from owners whose vehicles were not included in the recall, prompting this investigation.