00:00General Motors under federal investigation after recall fix made 600,000 vehicles worse.
00:07In winter, a GM Silverado 6.2-liter V8 failed despite a recent recall fix, leaving the owner stranded.
00:14Nearly 600,000 vehicles face similar issues, raising questions about the remedy's effectiveness.
00:20GM faces a federal probe after nearly 600,000 vehicles with 6.2-liter V8 L87 engines.
00:30Including Silverados and Tahoes, failed despite recall fixes.
00:3536 complaints have been reported, with the investigation potentially expanding.
00:40Introduced in 2019, the L87 engine powers high-performance GM trucks.
00:45Recall 25V-274, issued in April 2025, addressed sediment buildup and crankshaft wear affecting more than 28,000 complaints.
00:55The defects stemmed from substandard manufacturing practices.
01:00Despite recall remedies, including oil upgrades and engine replacements, failures persisted.
01:06Owners continued reporting breakdowns, some after completing repairs.
01:11In May 2025, a class-action lawsuit was filed, and by October the investigation scope widened to include nationwide incidents.
01:19On January 16, 2026, the National Highway Traffic Safety Administration launched Recall Query RQ-26001, examining 597,630 U.S. vehicles.
01:34The probe reviews whether the recall, which included higher viscosity oil and engine replacements, sufficiently addressed the underlying defects.
01:43The U.S. market is the primary focus, though globally, 721,000 vehicles were recalled.
01:51Persistent complaints across multiple models, including Escalade and Silverado, highlight ongoing reliability and safety concerns.
02:00Affected owners face recurring engine failures and service hurdles.
02:04While no crashes have been reported, failures raise serious reliability concerns, leaving many frustrated and uncertain about next steps.
02:12NHTSA is assessing the quality of L87 engine parts, testing of recall remedies, and whether the fixes adequately resolved the defect.
02:21Failures after oil changes and replacements cast doubt on the recall's efficacy.
02:27Over 28,000 complaints trace back to metallurgy issues in L87 engines, highlighting long-standing design and manufacturing concerns dating to 2019.
02:38With 721,000 vehicles recalled worldwide, GM faces potential cross-border legal scrutiny and regulatory oversight.
02:46GM must submit detailed data to NHTSA and coordinate with dealerships.
02:53Outcomes will influence next steps in remedies, recalls, and customer support.
02:59Industry experts note that manufacturing flaws in the crankshaft underpin persistent failures.
03:04Both oil upgrades and engine replacements failing indicate the original remedy may have been insufficient.
03:12Expanded remedies, including full engine replacements, are possible.
03:16Widespread systemic issues could trigger additional recalls and stricter oversight.
03:22The case could strengthen recall testing standards and post-recall monitoring to ensure defects are fully resolved.
03:28Customized
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