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lml duramax

  1. 911 Problems Forum
    So i just installed a drop in stealth turbo from duramaxtuner and had my injectors re-nozzled to 100% over. Let me start off by giving some background, the truck is fully deleted with dual sportsman cp3’s and a fass 150 on the fuel side. The factory fuel filter housing has been deleted! After...
  2. 11-16 LML Duramax Powertrain
    Hey y'all! Got a question on the lml fuel system So I replaced the engine in a 2015 lml with a 100k mile engine. It cranks but wont start and while cranking rail pressure only shows 260-300 ... I can start it with starting fluid (I know I'm not supposed to) but it'll run on fuel if I keep it at...
  3. 11-16 LML Performance Parts Discussion
    Hey everyone, New member to the forum but have been creeping since I bought my 2015 GMC Denali 2500HD back in October of 2014. I finally pulled the trigger on Improving my trucks performance after 138K miles. I purchased ecm & tcm soft tunes, passenger up-pipe, MBRP downpipe, 5 inch straight...
  4. Towing & Hauling
    I have been doing my Research on this truck for a while now, but maybe it’s the lack of not knowing. I have a B&W gooseneck hitch already installed in the truck I’m trying to find the max pin weight that I could put in the back? Looking at buying a toy hauler? If anybody could give there opinion...
  5. Gauges, Electronics and Wiring.
    I have a 2011 2500 HD and recently after the cold weather my taillights started acting up. At first it was my right turn signal not working then it turned into both not working. Sometimes the brake lights are lit up when I'm not hitting them. And the reverse lights are just barely lit sometimes...
  6. 11-16 LML Performance Parts Discussion
    I am new to the diesel world so I figured Id ask anyone here with knowledge. I have a 2016 LML 6.6 Duramax 75,800 miles, the only modifications on the truck is a S&B cold air intake. I'm wanting to know if I need to delete the DPF, EGR, and the DEF in order to tune the truck. I know i can throw...
  7. EFI Live
    I recently bought a 2013 lml that was about 5 hours away and the truck is already deleted and tuned with a 5 pos switch. The guy is not sure who the original tuner was but believes it was tuned with EFI Live. Now he is hard to get a hold of. I am about to do some mods to the truck that I believe...
  8. 11-16 LML Duramax Powertrain
    Hey guys, I’ve searched and searched for answers to my issue. A few topics have touched on it but to no avail have i found a solution. Hoping for some insight/brainstorming. Thanks in advanced. Truck: 2011 lml duramax, fully deleted (block off plates), running efi live stage 1, Cat filter...
  9. 911 Problems Forum
    Hey guys, I’ve searched and searched for answers to my issue. A few topics have touched on it but to no avail have i found a solution. Hoping for some insight/brainstorming. Thanks in advanced. Truck: 2011 lml duramax, fully deleted (block off plates), running efi live stage 1, Cat filter...
  10. How To's, DIY and Write ups
    Hey guys, I have a 2014 GMC 2500 with the LML and had the infamous CP4 failure the other day at 118k. Im currently pulling the injectors and got 1-7 done but I'm having a total brain block on how to get the 8th injector high pressure line off the fuel rail without pulling the turbo. I cant get a...
  11. General Discussion
    I've owned this Lml for about 3 months. Was completely stock when purchased. 145k miles.. i installed Efi live tow tune with egr turned off / unplugged. Im Not sure if it's a issue but would like some input. Turn key start and drive off. Turbo vanes jump to 73-76% once you start to accelerate...
  12. Introductions
    My name is Cory. I own Technics Window Tinting/Auto Shield in Fort Worth Texas. I just bought my 1st Diesel for towing a 34 ft. camper, Bumper pull. I have a 2013 2500HD LTZ. I am currently removing the EGR, CAT and DPF. Adding a 4in with muffler and a EFI Live Tow tune. I have been towing with...
  13. 11-16 LML Duramax Powertrain
    I’m new here. I have a 2011 GMC Sierra with the LML duramax. It is tuned by kory Willis and have a full 5in turbo back. I just finished an egg delete with a werhli high flow bundle kit. I’m currently experiencing what I would call a misfire. The only code that has come up was p0675 (open circuit...
  14. General Discussion
    2012 GMC 3500hd 6.6 LML I recently had to replace my steering gear box which was full of shredded metal. I replaced the gear box, power steering pump, cleaned all the lines, and replaced the hydro boost while I was in there. I’ve replaced and torn the whole system apart 3 times now due to back...
  15. 11-16 LML Duramax Powertrain
    Hey guys I’m getting stumped with my pickup 2011 lml with a mini h&s tuner and deleted, fass lift pump.I’m having this problem currently that the truck will just shut off like someone turned the key off when decelerating to a stop, the gauges are all still on, no codes, and the truck always so...
  16. EFI Live
    I need help I’m new to the diesel world. I bought a 2014 gmc 2500hd that was already tuned with a H&s mini maxx but the previous owner didn’t leave the mini maxx with the truck so I was wondering if I buy a new mini maxx and install the tunes would it fry my Ecm since it’s not the original one...
  17. Suspension&Steering
    I have searched and searched on here for an answer and have come up empty handed. I have a 2011 Lml and In need of new ball joints and figured I’d upgrade control arms to something other than factory. Truck is leveled on stock wheels with 33x12.50 Toyo At3. Really the question is which...
  18. 2011-2016 (Non Powertrain)
    New to the forum looking for a reliable (lml) duramax perfomance specialist in central florida, anyone have any recommendations?
  19. Looking For/ Wanting To Buy
    Hi All I have a 2012 Chevrolet Silverado 2500HD that has the Z71 Appearance Package. Originally the grille had black surround and chrome mesh inserts however the previous owner painted the inserts black. I am looking to buy either the whole Z71 Appearance Package grill (black surround and...
  20. 2011-2016 (Non Powertrain)
    2015 lml Duramax -Threw the p16a8 code for glow plug control module and thought about changing the glow plugs as well just to be on the safe side. Any help appreciated🤘
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