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    Tuning software question

    how do i get software for my Duramax to hook up laptop?
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    2007.5 Chevy 2500 4x4 6.6 LMM Duramax 100,000 miles. More problems.....

    Got this truck in a trade. Have had troubles since I got it. Any how had it running for a while started running rough , smoking, dropped in limp mode changed fuel filter and I mean the whole thing housing and rubber hoses. no help changed pressure reg. and plug, nope. Took to shop . wanted 3 to...
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    2007.5 silverado 2500 with multiple codes

    Not sure what to do. dont want to just throw money at it. I have a 2007.5 silverado with 6.6 LMM it has 1000000 miles on it.Started running rough so It was about filter time so replaced filter. seemed to make it worse. So ordered hole new filter & housing with fuel lines. still no help...