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  1. Question: Dorman LB7 High Pressure Injector Line Failure

    Duramax First Generation: 2001-2004 (LB7)
    Has anyone had a problem with Dorman's high pressure feed lines? I installed them about 3 years ago on my LB7 as part of an injector job and was pleased with the price and quality. I always use a 19mm flare nut crow's foot to torque them properly. Yesterday while driving, had a strong fuel smell...
  2. Coolant system pressure

    Duramax First Generation: 2001-2004 (LB7)
    Ive been working on an 03 LB7 w/140k miles on it. Egr delete and after market oil cooled fleece turbo installed before I got it. Had all the signs of blown head gaskets so tore it apart and replaced them with arp head studs. Had heads resurfaced and replaced all o rings and gaskets associated...
  3. Goliath

    Goliath

    2003 Sierra 2500HD crew cab short box, SA conversion to dana 60, sdp turbo s369sxe, divorce np205, 44’ boggers, 5.13 12bolt, ARB locker (📸2019)
  4. 2004 Sierra 2500HD Duramax

    2004 Sierra 2500HD Duramax

    4x4 crew cab long box (📸2007)
  5. 2004 Sierra 2500HD Duramax

    2004 Sierra 2500HD Duramax

    4x4 crew cab long box (📸2017)
  6. Question: P1345 Code, Anybody familiar?

    Duramax First Generation: 2001-2004 (LB7)
    Howdy Yall, longtime lurker here but I can’t seem to find what I’m looking for through searching. I just picked up a 2001 2500HD LB7/ZF6 recently and its been great! Used to have another ‘01 with the ally but alas it died an untimely death, but I digress... The check engine light came on, so...
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