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J.D. Power study finds ACEN technology woes affecting vehicle reliability for consumers

Green Car Congress

ACEN is now the most problematic area on most vehicles and is the cause of the industry’s 3% year-over-year decline in vehicle dependability. Key findings of the study included: The overall industry average is 152 problems per 100 vehicles (PP100) this year, compared with 147 PP100 last year. Highest-ranked nameplates and models.

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Details on GM’s new efficient top-end 8-speed automatic

Green Car Congress

The 8L90, the replacement for the venerable 6L80 six-speed in GM’s lineup, is offered as well as standard on 2015 Chevrolet Silverado, GMC Sierra and GMC Yukon Denali/Yukon XL Denali models equipped with the 6.2L gear used with previous six-speed automatic models, engine rpm is reduced by 8% (123 rpm) on the highway at 70 mph.

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