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    LMM: 300K Mile 1 ton needs new life!

    The codes are P2446 (only once) P0087 constantly & P0101 constantly It Blows Black Smoke at times & then a code comes up for Exhaust regen (look at owners manual) The only modification is aftermarket air breather
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    LMM: 300K Mile 1 ton needs new life!

    My 2007 1/2 Duramax 1 Ton has 297,500 miles on it today. It is Throwing Codes, Blowing Smoke & Chattering in the Tranny when under load. I would like to learn how to make it better than it was when I bought it new 8 years ago. I use it everyday hauling equipment of all kinds & its always loaded...