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  1. 11-16 LML Duramax Powertrain
    Bought a used 2015 lml in the summer,was previously deleted and has an autocal motorops tuner in it. All summer and fall truck would start fine,switch splines and high idle as it should... winter temps hit 0°c and colder and now not so much. So I wait for glow plugs,turn key and it fires easy...
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