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  1. Duramax First Generation: 2001-2004 (LB7)
    The truck is an 03 Silverado 2500hd 6.6 duramax with the 5 speed Allison transmission. I don't know the mileage because the instrument cluster was changed before the guy I bought it from bought it(so he says). When I really tromp on the pedal the smoke turns black which it's supposed to I think...
  2. 6.5L Diesel Engine
    I have recently developed a problem where it feels like the engine is misfiring when I am trying to maintain a constant speed. The engine idles perfectly fine. Starts perfectly fine. And accelerates well under full throttle.It does smell like it’s running rich. I recently replaced an injection...
  3. Duramax Fourth Generation: 2007.5-2010 (LMM)
    Current known Issues 1)Black smoke coming out of Tail pipe 2) Using Edge CTS3 im not getting a reading for one of my injector rates (bottom right on the cluster) 3) Terrible throttle response 4) bad gas Milage 5) randomly getting a low oil pressure warning Im going to go ahead and guess...
  4. 6.2L Diesel Engine
    1982 Suburban, NA two weeks ago took it on a roughly 100 mile round trip excursion to get everything churned and assess any issues before I take it on a slightly longer trip with a small load (old camper weighing in at about 2200) We pulled the camper out of storage with it and the engine...
  5. Duramax First Generation: 2001-2004 (LB7)
    Having an issue with my 03 LB7. Replaced injectors 2500 miles ago. Trucks been running great until I hooked onto the two car enclosed trailer and drove 30 miles north to race. On the return trip I looked back and could no longer see the trailer or any vehicles behind me. I slowed down and got...
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