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  1. Duramax Second Generation: 2004.5-2005 (LLY)
    new to this form and duramax’s lol but i recently bought one in tractor mode and have been going through all the ice picking and replacing pig tails and checking the ficm bracket by the alternator and a couple other spots i’ve seen through these forums but the weird part about it is i have no...
  2. Who sells [fill in the blank]?
    My remote is getting pretty worn out and is probably 1-2 hard-floor drops from being done. Where can I get a replacement? Maybe just the outer case replacement even. For a 2005 LLY if that matters.
  3. Wheels & Tires
    What is the max tire size that will fit on a 2005 leveled 3/4 ton? Just trying to get my truck to look tougher. Thanks guys
  4. Duramax Second Generation: 2004.5-2005 (LLY)
    Short story version: Truck sat for two weeks while I waited on parts and time to swap out steering gearbox, pitman arm, and tie rods. That all went fine. Went to take it to the shop today and it stalled out, found that it lost prime. Got it running again and got another 2-3 miles before it...
  5. Duramax Second Generation: 2004.5-2005 (LLY)
    Having a hard time with this…. Injector 6 (3rd back on driver side) was at first slow leak.. pulled it out, there was no o-ring on it, put a new one on and it’s still leaking but now it worst… pulled it back out and took it to a shop here local and got a new copper seal and another new o-ring...
  6. Allison OEM
    I’ve dug through the forums I can’t find anyone that is or has had the same symptoms. My truck will pull a trans code of u0100 lost communication with ecm/pcm “a” when I start it up. Then as I drive it will throw more codes. I have checked wires checked connectors. I have read it could be a nsbu...
  7. Allison OEM
    Hey guys i have a 05 duramax after the truck warms up it clings when you shift from park to reverse, reverse to drive. Also it makes a noise almost like a baseball card in a bike tire in first and 2nd only especially when downshifting 3rd on makes no noise. I parked it one day got back in it and...
  8. Duramax Second Generation: 2004.5-2005 (LLY)
    So I learned the hard way on the road that my LLY runs hot when towing in the heat. I already have a k&n intake that I’m not wild about (plan was to upgrade it to a different filter). Can I run an improved turbo mouthpiece with the K&N intake or would I need to swap that out to make it work?
  9. Duramax Second Generation: 2004.5-2005 (LLY)
    Was running fine yesterday had plenty of power no loss of power shut off for couple hours started up to go home and truck didn’t have any power? hit the pedal to the floor just real luggish no power but on edge insight still building boost, checked all intercooler pipes and hoses everything is...
  10. Duramax Second Generation: 2004.5-2005 (LLY)
    So long story short I bought an 05 2500 with a screwed motor and bought an 04.5 LLY that was out of a C5500, swapped all necessary items and opted to stick with the 2500s injectors (new reman), wiring harness and other modules to ensure there wouldn’t be any issues. Now trying to get it to fire...
  11. Duramax Second Generation: 2004.5-2005 (LLY)
    2004.5 - 2005 LLY FAQs Here is a compiled listing of the most popular LLY topics discussed here at DieselPlace.com. This is to help you speedily find your answers, without having to wait for a reply to your question. We love to answer questions and enjoy gathering around the computer to help...
1-11 of 11 Results