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  1. 6.5L Diesel Engine
    Hello all! Thanks for looking! I have been searching and searching! I’m usually fixing fords (the 6.0 put me into business! ;) haha!) Anyhoo I have a 1999 C3500HD 2wd with a 5speed. 6.5 and this thing doesn’t want to leave me! It is throwing a p0118 code for the temp sensor open or short...
  2. Duramax First Generation: 2001-2004 (LB7)
    2002 2500 OK I've got the code where it throws you in limp mode only running 4 cylinders I've had it happen before but it usually stays working again I know it sounds like a weird run situating but I have been through every wire in the harness and nothing so I took the upper valve cover off...
  3. 6.5L Diesel Engine
    im totally new to this so if i have done something out of order or anything just point me in the right direction. i do have a different question ant ecm swap between a 98 auto trans 6.5 and a 2000 manual 6.5. if someone wants to tackle that too. been having troubles with 2000 C3500. 6.5...
  4. 6.5L Diesel Engine
    1996 6.5, relocated PMD to bumper with heat sink, new sending unit with supposed diesel sock, new lift pump, new fuel line from lift pump to FFM, new FFM, clear line for bubbles installed, manual wastegate installed/vacuum pump deleted, replaced OPS Finally got around to getting codes off of...
  5. 6.5L Diesel Engine
    I have questions about the transmission, rpm and the codes that popped up. I’m not a mechanic, but I have a friend that did all the work on it. I have an ambulance that is a 1995 Chevy 3500hd, 134,000, 6.5 TD, 2WD, DRW, 4L80E automatic, Dana 80, HC7 axle rear 5.13 ratio, 225 70 19.5 wheels. I’ve...
  6. Duramax Second Generation: 2004.5-2005 (LLY)
    i have 05 Duramax 2500hd with allison transmission lost power with smoke and i have 33 different code from the tcm
  7. Duramax Fourth Generation: 2007.5-2010 (LMM)
    What’s up guys. I’m having a hell of a time with it right now. Truck has been down for almost 6 months. I did a full EGR delete with new up pipes down pipe and intercooler pipes. Yes I have efi live in the truck. After doing the full EGR delete I got random codes. Ended up having the truck towed...
  8. Duramax First Generation: 2001-2004 (LB7)
    I have a 2003 Sierra with a Duramax that has developed a problem. It seems to turn over "good" but it wont start. I hooked up my scan tool and it spit out the following 40 DTC codes. Anybody have any ideas on where the problem may lie? Thanks P0218 Transmission Fluid Over temperature P0562...
  9. Duramax First Generation: 2001-2004 (LB7)
    Can some one please help !! I have 02 lb7 andd went to leavi g work and crank no start Fuel gauge was saying empty with full tank cut open box and move the sensor and move at the gauge now there is nothing P02001 through p02008 p1261 p1262 p0090 p0828 p0207 p0206p0205 p0204 ... .... .when i...
  10. Duramax Second Generation: 2004.5-2005 (LLY)
    Hello, looking for suggestions here. Over a month ago my stock LLY went into the classic “tractor mode” throwing codes P2149, P0202, PO203, PO205, PO208. My first move was to replace injector harness #2 with the AC Delco replacement. This got the truck up and running instantly. Daily drove it...
  11. Duramax Fourth Generation: 2007.5-2010 (LMM)
    What’s up guys I have a 2007.5lmm that I did a EGR delete and a new y bridge on as well. After completing everything the truck ran good at idle but crankcase sensor failed. I ohm tested the wires for the crankcase sensor from the sensor to the ecm. The wires were good so I replaced the sensor...
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