J.D. Power Survey: Cummins, Caterpillar Get Highest Customer Satisfaction Marks

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The high­est marks in J.D. Power’s 2007 Heavy-Duty Truck Engine/Transmission Study that tracks cus­tomer sat­is­fac­tion with engines in two-year-old heavy-duty trucks went to Cum­mins and Cater­pil­lar. The exhaust gas recir­cu­la­tion (EGR) valve, account­ing for 17% of all engine-relat­ed prob­lems, was the most fre­quent­ly men­tioned engine con­cern for the sec­ond con­sec­u­tive year.





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