Is there something wrong again with connecting rod bearings on Honda’s 3.5-litre V6 engine? That’s what U.S. authorities want to know. The National Highway Traffic Safety Administration (NHTSA) has opened an investigation covering approximately 1.

The regulator said that the investigation, which began Friday, is looking at over 1.4 million vehicles that may have a a failure of connecting rod bearings, "leading to complete engine failure." Each of the vehicles is equipped with a 3.5-liter V6 engine.

WASHINGTON (Reuters) - The National Highway Traffic Safety Administration said Monday it is opening a probe into 1.4 million Honda vehicles after reports of serious engine issues.

The U.S. government's highway safety agency is conducting an investigation regarding claims that engines could fail on as many as 1.4 million Honda and Acura vehicles.

The U.S. government's highway safety agency has launched an investigation into reports of engine failure in up to 1.4 million Honda and Acura vehicles, according to documents posted on the agency's website on Monday.

The National Highway Traffic Safety Administration is investigating concerns that engines on 1.4 million Honda and Acura vehicles might fail.

The U.S. government’s highway safety agency is investigating complaints that engines can fail on as many as 1.4 million Honda and Acura vehicles. The probe by the National Highway Traffic Safety Administration covers the 2016 through 2020 Honda Pilot and Acura MDX,

An estimated 1.4 million Honda and Acura vehicles may be affected by an issue that can cause the engine failure issue. According to the National Highway Traffic Safety Administration, an investigation has been opened into an issue that affects five vehicle models manufactured by Honda after receiving 173 reports from vehicle owners.