07-27-2022, 01:06 AM
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NHTSA Investigating Catastrophic Engine Failures in 2021 Ford Broncos
Quote:
The National Highway Traffic Safety Administration (NHTSA) has opened an investigation into a potential issue with the valvetrain in V-6-equipped 2021 Ford Broncos that could lead to catastrophic engine failure at highway speeds, according to a public filing published this week.
The filing, which was first reported on by the Wall Street Journal, states that "[i]n a June 7, 2022 meeting with Ford, [the Office of Defects Investigation] learned this alleged loss of motor power is a result of catastrophic engine failures due to the engine valves failing. Ford identified the root cause as the valve 'keepers' not holding the retainer in place allowing the valve spring to detach from the valve resulting in interference between the valve and piston. This interference can cause an engine lockup."
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https://www.roadandtrack.com/news/a4...ord-bronco-v6/
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