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  1. GM Gassers
    Good morning, First post here, I have a 02' 2500HD 8.1L/Allison 4X4 with a bullydog gt tuner- I am getting a PO101 Code, I have replaced the MAF twice, MAP, air filter (wix paper) inspected the intake and intake tubing for vacuum leaks and data logged my Cats. I reset the bullydog to stock...
  2. Duramax Fourth Generation: 2007.5-2010 (LMM)
    Hey guys, I'm having problems with my 2009 2500HD 6.6, it has a tuner and a few things done to the exhaust I believe. Every now and then I had the Engine power reduce pop up and it has steadily gotten worse. Now when I clear the P0101 code it comes right back. I have done a few things to fix...
  3. Duramax First Generation: 2001-2004 (LB7)
    My 2001 LB7 truck was sitting in the garage for over two months. I noticed little oil stain on the floor under the seal weep hole. It never leaked before. It wouldn't start because batteries were low. Next day after charging batteries there was big puddle of oil. Started up and drove it for 20...
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