NHTSA Probes 2021-2022 Ford Trucks for Engine Failures
Owners of certain E-350 and F-series models should monitor for engine issues as federal investigators review potential defects.
Updated on Oct. 26, 2026 in Trucks
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The National Highway Traffic Safety Administration (NHTSA) has launched a federal investigation into potential engine defects affecting approximately 50,000 Ford vehicles. Owners of 2021-2022 Ford E-350, F59, and F-750 models with 7.3-liter V8 engines are included in the probe following reports of catastrophic failure.
Why it matters
This investigation seeks to determine if low oil pressure at idle creates a safety risk that could lead to sudden loss of motive power at highway speeds. For owners, the probe addresses concerns regarding engine durability and whether existing software patches are sufficient to prevent mechanical breakdown.
The investigation covers 50,000 vehicles from the 2021 and 2022 model years, with reported engine failures occurring between 45,745 and 103,177 miles. Authorities are reviewing performance data following a June 2026 petition alleging defects in the 7.3-liter V8 engine's camshaft and lifters.
The players
NHTSA
The National Highway Traffic Safety Administration is a federal agency responsible for issuing safety standards and investigating potential vehicle defects.
Ford
Ford is a major automotive manufacturer known for its heavy-duty truck and commercial van lines, including the F-series and E-series chassis.
The details
The investigation focuses on claims that low oil pressure at idle causes premature wear on lifter rollers and camshaft lobes, which can lead to total engine failure. The petition also alleges that Ford distributed a software update to raise idle speeds as a remedial measure without informing vehicle owners. The NHTSA will now determine if these mechanical failures constitute a recurring safety defect across the 2021-2022 product line.
Timeline
2020: Ford launched the 7.3-liter V8 engine.
2021-2022: Model years of Ford vehicles under investigation.
February 2024: A North Carolina fleet owner reported five engine failures across 11 units.
June 2026: The NHTSA received a citizen petition requesting an investigation.
October 2026: The NHTSA officially opened the investigation.
The Home Front
This investigation highlights the increasing role of federal regulatory oversight in managing the long-term reliability of commercial-grade engines in consumer-accessible fleets. It sits alongside recent regulatory scrutiny regarding the durability of heavy-duty powertrain components.
If you own a 2021-2022 Ford E-350, F59, or F-750, monitor your engine performance for any signs of stalling or loss of power. Consult with a licensed professional technician if you experience unusual engine noise or check-engine alerts, as these may be early indicators of valvetrain wear.
The takeaway
Owners of these specific Ford models should maintain detailed service records for all engine-related repairs to assist in potential future warranty claims. Tracking the progress of this investigation via the NHTSA website can provide clarity on whether a corrective action or recall is issued.
Further reading
For more information on maintenance and reliability standards, visit our Trucks section.
Source note: This article includes information reported by CarBuzz.
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