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  1. 04.5-05 LLY Duramax Powertrain
    Gonna start this off with I’ve had this account for a year and still never know where to post these so I hope this is the right thread😥 My 05 LLY has 190k and I am used to the typewriter tick, at least I believe I am. This noise I have never heard in the 4 years I’ve owned it. Just had the...
  2. General Discussion
    New to forum so please move if in wrong place. I’ve had this oil seep forever now on bell housing and it just got worse I have no idea where it’s coming from, I checked inspection on trans and it was dry I have no idea where it’s coming from. Don’t know where to check etc. anyone please help...
  3. General Discussion
    So here's the situation, I just purchased/inherited a 2006 Silverado 2500 from my elderly neighbour (husband passed away) the truck is absolutely mint inside and out, no rust at all and that's fairly rare for are Ontarian salty winters. The truck only has 118xxxKM on it has the Manual ZF6...
  4. Drivetrain
    So a while back I parked my 2003 2500hd CCLB after having a generous amount of oil come out of my crank case breather tube. I stopped driving it right there and then. Did an oil change and rather than the usual 2.5gal out came 5gallons of really, really thin oil. My first thought was fuel in the...
  5. Exterior
    I'm getting ready to install a dual LED blade up under the tailgate I took it off and I noticed this large black part with three teeth that links up with two teeth built into the tailgate... I'm wondering if this is to prevent sliding right and left or if it's some kind of theft deterrent if...
  6. DIY and Tech discussion
    I checked my truck this morning with the scanner and saw it had a U1067 code which is for lost communications with body multiple control system. But so far everything I can tell is fine. Any ideas on what it could be
  7. Gauges, Electronics and Wiring.
    Need help on the main harness that runs from the front to this junction ive been to gmupfitters a ton of good stuff but cant find quite what i need any help appreciated
  8. 911 Problems Forum
    I went out to start the truck today and no start no crank power locks no longer works remote start doesn’t work dash lights come on but security light stays on after all other go off and says service 4wd service trailer brake system service air bag just service everything both batteries are in...
  9. General Discussion
    Hey guys, been lurking for a bit, time for my first post. Mid November 2020, we bought our first 2500 High Country diesel. Bought with the intention of towing our new camper to go around and see the country since I could now work remote. It's a 10k lbs travel trailer, I wanted to make sure I had...
  10. General Discussion
    I’ll make this quick and simple, need some help. Has anyone experienced this? What could it be? 2002 LB7 EFI live Not much done to engine when I start the truck cold, there’s a weird cricket like noise coming from back of engine/tranny area. I can’t pinpoint it. This noise seems to go away...
  11. Gauges, Electronics and Wiring.
    To Start off I have an 06 LLY I’ve seen a fellow member with a similar problem many years ago but didn’t not find a clear solution in the thread. Here’s my current issue. My climate control whether it’s on heat or ac only blows at 10% what it should? I have also noticed that the truck has a lot...
  12. General Discussion
    I have been working to replace the water pump on my boyfriends truck. I ran into some issues and a storm rolled in. As of now, I have everything taken apart and even the fuel injector disconnected. This morning I heard a noise like a vehicle trying to turn over repeatedly. I wasn't sure what it...
  13. 11-16 LML Duramax Powertrain
    Hello, Im new to the forum, hope someone can help me out. Doug rear pads and rotors on my 2016 2500hd lml. I can tell the rear wheels had never been pulled off for any sort of reason on this truck prior to my buying. Everything was quite corroded and rusted. Ended up gettin the wheel of...
  14. General Discussion
    Hey guys, I have a 2017 Silverado 2500HD 4x4. What’s the largest tires I can fit on it without getting a lift?
  15. 911 Problems Forum
    I have a 2003 lb7 ext cab long bed, ppe xcelerator, 5 inch straight pipe exhaust, 3 inch hot and cold side pipes, ppe race fuel valve, pcv reroute, cold air intake, aftermarket downpipe and the injectors are approximately 9 months old along with head gaskets valve seals, ect... The truck has a...
  16. 11-16 LML Duramax Powertrain
    The other night my truck got stuck in park. The shifter would not budge at all. Replaced the brake position sensor. As well as the transmission shift interlock solenoid. Now the truck shifts, but its shifting without pressing the brake pedal at all. Anyone have any insight to this?
  17. 04.5-05 LLY Duramax Powertrain
    Hey guys I’m new on this thread as I’ve read a lot of these over a long period of time I’m finally posting to hopefully hear some good insight into what could possibly be the issue here. Here’s number one. 1. So I bought this truck as my first diesel not knowing anything about them... my...
  18. 2001 - 2007 (GMT800) Non Powertrain
    So I've got an 05 lly, recently it has been giving me some issues. The other day I was driving down the road and the rpms dropped and it lost power as if only half the fuel was getting to the engine. I put a new fuel filter on it thinking that could be the issue and it wasn't. When it does this...
  19. 11-16 LML Duramax Powertrain
    My Lml is throwing the P0137 code which according to my diagnostic tool is Oxygen Sensor Circuit Low Voltage (Bank 1, Sensor 2). I was under the impression that duramax didn't use oxygen sensors so Im at a total loss. Does anyone have any ideas at what the problem is and how to fix it...
  20. Interior
    I just had a shop replace 2 of the blend door actuators and I have heat and a/c on the passenger but it’s stuck on A/c on the driver side. Any help would be appreciated
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