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  1. Bad EGR Valve and plugged crankcase breather

    Cummins Diesel Specific Topics
    So my truck has been getting pretty bad mpg's, roughly 13-14mpg instead of the 16-17mpg I was getting previously. Took it into my local diesel specialist, and they suggested a new EGR valve and advised that my crankcase breather was also plugged, and needed replacement. I've seen posts and...
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