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Satisfaction with Heavy-Truck Powertrains Drops
The technology required to meet U.S. diesel emission standards is causing more engine problems and less owner satisfaction among Class 8 truck owners, according to J.D.
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The technology required to meet U.S. diesel emission standards is causing more engine problems and less owner satisfaction among Class 8 truck owners, according to J.D. Power and Associates.
Power's Heavy-Duty Truck Engine and Transmission Study finds that engine satisfaction this year slipped to 719 of a possible 1,000 points from 739 in 2011. Transmission satisfaction declined eight points to 812.
The survey evaluations such factors as electronic control modules, vibration at idle, fuel economy and engine dependability.
Power stays 47% of heavy truck owners report engine problems with their year-old vehicles compared with 42% in last year's survey. One in four with engine problems blames electronic control module calibration; one in five cites the exhaust gas recirculation valve.
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