1.4 million Honda vehicles are under investigation over engine failure concerns

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The U.S. government’s Highway Safety Agency is investigating as many as 1.4 million cases Honda and Acura vehicles after complaints that the engines could fail.

The National Highway Traffic Safety Administration investigation covers the 2016 through 2020 Honda Pilot and Acura MDX, as well as the 2018 through 2020 Honda Odyssey and Acura TLX. The 2017 through 2019 Honda Ridgeline is also included in the study.

Documents on the website say connecting rod bearings on vehicles with 3.5-liter V6 engines had the potential to fail, leading to complete engine failure. One owner even reported a car accident.

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A general view of a Honda car dealership on September 15 in Farmingdale, New York. Many households and businesses suffer the consequences of inflation as the economy dictates a change in spending habits. (Bruce Bennett/Getty Images)

A similar recall occurred in 2023 when Honda approximately remembered 250,000 vehicles to solve similar problems.

The new investigation does not include the same vehicles included in the 2023 recall.

So far, Honda has been willing to cooperate with the investigation.

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An employee wears a Honda Motor Co. patch on a lab coat Thursday at the Honda Auto Plant in Marysville, Ohio. Honda Motor Co. plans to recalibrate production within its largest market in favor of light trucks, in an effort to improve profit margins (Ty Wright/Bloomberg via Getty Images/Getty Images)

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According to the documents, approximately 1,450 warranty claims have been filed so far, but there have been no reports of injuries.

Dealers are in the process of inspecting the affected vehicles and repairing the problems if necessary.

Reuters contributed to this report.