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1-11 of 11 Results
  1. General Discussion
    Got an ‘11 LML w/ 250k miles. Has an EFI live tune and everything else is pretty much stock. All I do with the truck is tow my camper and some random miles here and there. Yesterday it just kept cranking with no start. After 15 minutes of cranking on and off it finally started and ran seemingly...
  2. 04.5-05 LLY Duramax Powertrain
    Hi all, I’ve got an 05 that limps. When I bought the thing in December it limped, and its got a new set of injectors and a new cp3 (under my ownership). My questioning is of the lift pump. The truck works mostly fine around town, I can’t do more than 75 without sending it into limp mode because...
  3. 04.5-05 LLY Performance Parts Discussion
    This is my first time posting so I’m not sure how all this works. I think I posted in the right place. I have a 2005 ZF6 LLY duramax and my injectors went out. I ordered 30% over injectors but just got told they’re out of stock. I am considering switching to 45%’s instead, just looking for some...
  4. Introductions
    2001 LB7 engine and trans all stock but some other upgrades On 37s 6in BDS lift Airdog lift pump Steel bumpers from and back 5in straight pipe I want to try and get some of my acceleration back from having big tires, lift, and all the weight. Not trying to go crazy I dont want to kill my...
  5. How To's, DIY and Write ups
    Thanks to all the great write ups on here everything went pretty well, had minor set back at the end… DO NOT RE USE FICM BANJO BOLT WASHERS! can’t believe that made it suck in enough air to run for about 5 min then die and no reason start but luckily someone on here put their .02 in and BAM...
  6. General Discussion
    I have a problem that has gotten progressively worse over the past few weeks. I want to start this off by saying there is no check engine lights nor have I had any. The truck also has 99k miles. What started off as every so often I would notice a loss of power followed by a slight stutter then...
  7. General Discussion
    Hey guys, looking for some help, I have a 2015 lml that ive been building. Info on the truck is cclb, 120k miles, 5 in exhaust, fass 250gph, hsp S475 billet over stock, 100% over industrial injection injectors. I just installed the injectors and getting a CEL for PO2D7, (injector learning at max...
  8. 07.5-10 LMM Duramax Powertrain
    First timer here! Recently picked up an 07.5 Lmm with 295,000kms on her. Took the kids on a 5,000km trip towing a 4500lb trailer and ever since I’ve been getting a knock on startup and accelerating until it slips into 4th gear or so. I borrowed a laptop from our heavy duty dept at the college to...
  9. General Discussion
    So I just replaced all 8 injectors all with new cups new high pressure lines new return line bolts. I cleaned the return lines really well. Still feel like I have some fuel in my oil and it’s smoking white after I accelerate. It’s black smoke and then white. I really need help here. Any help is...
  10. 01-04.5 LB7 Duramax Powertrain
    My 03 lb7 has about 15,000 miles since I replaced the injectors and recently has developed a light fuel knock on both driver and passenger side during acceleration. No hazing. Hardly any black smoke on heavy acel. It’s not incredibly noisy but I can hear them. I’ve been running a good amount of...
  11. General Discussion
    Hello everybody! This is my first post, so hopefully I don't mess it up. I just bought my first diesel a couple of weeks ago. 2004 2500 LB7 crew long box with 39,000 miles. A shirt-tail relative has Parkinson's and is no longer able to drive it. The truck is sterile but I'm considering a few...
1-11 of 11 Results
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