通用大Recall

https://www.cbsnews.com/news/gm-recall-escalade-silverado-suburban-sierra-engine-failure-risk/

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manufacturing defects. Investigations found that connecting rod bearings were damaged by sediment, and that crankshaft dimensions and surface finish were out of specification—both pointing to quality control or supplier manufacturing lapses. The SunautoevolutionAP NewsCarscoops