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6.6

  1. Duramax Fourth Generation: 2007.5-2010 (LMM)
    2007 (new body style) Silverado 2500 6.6L LMM 329,000 miles Original motor, original trans, EGR deleted 3 years ago, no programmer, factory tune. A couple of weeks ago the batteries went out overnight. Truck would not start and batteries would not charge. I replaced the batteries and I have had...
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