The National Highway Traffic Safety Administration (NHTSA) has launched an investigation into approximately 877,710 GM trucks and SUVs equipped with the 6.2L L87 V8 engine due to reports of engine rod bearing failure. The affected vehicles span multiple model years and brands under the General Motors umbrella, raising concerns about sudden engine seizure or even catastrophic failure.
Background of the Investigation
The NHTSA probe follows 39 formal complaints from vehicle owners who experienced engine rod bearing failures, leading to either engine seizure or cases where the connecting rod breached the engine block. While no crashes or injuries have been reported, the agency warns that an engine failure while driving could result in loss of power, which significantly increases the risk of an accident.
According to the NHTSA’s official statement:
“Failure or malfunction of the engine results in loss of motive power of the vehicle, which may lead to an increased risk of a crash resulting in injury and/or property damage.”
At this stage, the investigation is classified as a preliminary evaluation, meaning the agency is still assessing the scope and severity of the issue. While this could lead to a recall, there is no guarantee, as regulators may determine that the issue does not warrant further action.
Which GM Vehicles Are Affected?
The NHTSA investigation covers 2019-2024 GM vehicles equipped with the 6.2L L87 V8 engine, including:
- 2019-2024 Chevrolet Silverado
- 2019-2024 GMC Sierra
- 2021-2024 Chevrolet Tahoe
- 2021-2024 Chevrolet Suburban
- 2021-2024 GMC Yukon
- 2021-2024 Cadillac Escalade
The L87 engine is produced at GM’s Tonawanda Propulsion plant in Buffalo, NY, as well as two other North American manufacturing sites. While final vehicle assembly occurs at GM’s Arlington, TX plant, GM has confirmed that factory inspections would not have detected this defect since it typically develops after significant mileage accumulation.
What Happens Next?
Since this is an investigation and not yet a recall, GM owners do not need to take immediate action. However, given the nature of the defect, drivers should be on the lookout for early warning signs of engine failure, such as:
- Unusual knocking or ticking noises from the engine
- Loss of power while driving
- Excessive vibration or rough idling
- Oil leaks or sudden loss of oil pressure
GM has stated that it is fully cooperating with the NHTSA’s review and continues to monitor customer complaints. For now, owners of affected vehicles are encouraged to stay updated on any developments from GM or the NHTSA.
For further details, GM owners can check their VIN on the NHTSA database at www.nhtsa.gov or contact GM customer service at 1-866-636-2273.
How GM Owners Can Take Back Control
While no recall has been issued yet, many GM owners are understandably concerned about potential engine failures and their impact on safety. If problems persist or escalate, legal action could follow, emphasizing the importance of protecting consumer rights.
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