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  1. General Discussions
    I’ve had this weird chirp for some time and I’m getting tired of hearing it… when I’m driving at low rpm it’s more of a high pitched flutter and when I shut the truck down it’s a slight chirp. When I shut the truck down it sounds like it’s coming from below the alternator. Here’s a link to an...
  2. Interior
    So I’m having a gauge cluster issue. It will go back to 0 miles after the truck has sat overnight but when I pull the IPC fuse it goes back to my 147968. Then whatever miles I add to the 147968 is gone. Was told this is a eeprom issue? I’ve also been told that pulling and replacing connectors...
  3. General Discussions
    My 07 LBZ is losing coolant only while towing when it’s not towing it’s fine. It doesn’t lose pressure when pressure tested, there are no visible leaks, I took it to a shop and they think head gaskets but aren’t sure because it holds pressure when pressure tested but they want 9k to do a head...
  4. General Discussions
    So I’m new to the diesel life and I’ve been tryi
  5. 06-07 LBZ & LLY Duramax Powertrain
    I don't know if this is the right page but I've done some research on putting a Jake brake on my truck and everything I've seen says that you can't add one to the truck because of the turbo but it lead me some articles about if you add a wire to the ecm on the o2 side and run it to a toggle...
  6. Parts For Sale
    My new turbo came with a new sensor, this one came off my old one. Was still in working order, factory sensor not cheap aftermarket.
    $80 USD
  7. 911 Problems Forum
    I've got an interesting problem maybe someone can help me with, 2006 GMC SIERRA 2500HD with LBZ Duramax. idles fine and drives fine but has a misfire in lower rpms (1200-1600 that I can make go away if I plug in a coolant temp sensor that isn't actually reading coolant temp, basically tricking...
  8. 06-07 LBZ & LLY Duramax Powertrain
    Hello all! I’m new here just recently got back into an LBZ duramax and it was more of a project truck than I originally knew. The issue I’m having right now is when under throttle my intake air temperature on my Diablo tuner display is reading negative like -1 to -5 and when idling it will...
  9. 06-07 LBZ & LLY Duramax Powertrain
    I have 2006 LBZ 345k mi. In just the last year, when hot and ambient temp over 90 degrees. At idle (not all the time) intermittently, the oil pressure drops irradically. Even no pressure at all for seconds. Running at normal RPM and driving, it is as it should be with the pressures as specified...
  10. 06-07 LBZ & LLY Performance Parts Discussion
    Does anybody know if the older style edge juice with attitude programmers showed balance rates? The ones that plug into the harness not the obd2.
  11. 911 Problems Forum
    Replaced head gaskets did valve lash and studded the motor has the cp3 swap and new injectors few more bolt on mods put everything together you have to hang on the starter for a little bit and engine stumbles tries to idle around 400 rpm for a second then dies it acts like it’s not getting...
  12. 06-07 LBZ & LLY Duramax Powertrain
    Found a 2006 Chevy lbz on marketplace. It has 260k miles, seem mechanically sound. There is some rust on fenders that can be fixed. Rockers/cabcorners and frame are solid but injectors were never replaced. Everything checks out with injectors (seem okay), balance rates are correct, no smoke at...
  13. 911 Problems Forum
    Hey guys, I got a 2007 lbz duramax and lately something’s been up with it. The last week or two everytime id open my door it would ding. There’s no keys in it and my lights aren’t on. Then yesterday it won’t crank or anything. It just makes a single click and nothing. I change my ignition switch...
  14. Aftermarket Mods.
    I’ve been looking at the Airdog 2 4g and 5g. I’m not sure which one to go with or if there is any big difference at all? id like to hear if anyone is running a different lift pump system.Thanks I’m advance for any feedback.
  15. General Discussions
    Good morning, So I have a 2007 LBZ, and the past few weeks I've noticed that when im just coasting my boost pressure won't return to 0. It will stay at 1 to 2 psi, my truck use to always run right at 180 deg f to 185 deg f now it creeps up to the 190s. I've been trying to research what would...
  16. General Discussions
    Hello all, I'm brand new to this forum. I'm looking at a 2007 crew cab, 4wd 2500hd lbz Work Truck w/185k miles. The truck itself is really clean and has been kept stock for all its life. 1 owner, new stereo system and a new paint job. Asking price is 21500. This seems a little high but would...
  17. Transmission Shop
    So I picked up my first silverado (06 LBZ) a month ago and it came with a classic case of leaking tranny cooler lines where the line is crimped. Did some research and picked up a set of fleece lines. I've been working on replacing them today and I read somewhere that it's important to do one...
  18. 06-07 LBZ & LLY Duramax Powertrain
    My lbz usually drips a bit of coolent over night from the over flow on the expansion reservoir, don’t think much of it. But when I run it hard it blows a bunch of foamy coolent out from the same place and has a excessive amount of pressure in the system. The other night I was running it pretty...
  19. Wheels & Tires
    Hey everyone looking for pics of -51 offset 20x12’s on stock or leveled lbz’s. I recently upgraded from a 6.0 to a 6.6 06 GMC. Still have my 6.0 but she’s beat from the trails. Wanting to go a different route with this pavement princess. I have a set of 305/50r20 420’s I want to throw on it...
  20. Maintenance
    hey everyone. i have a 2006 chevy Silverado 2500hd lbz 4x4. About 3 months ago i started to notice a coolant leak coming from the 90 on the oil cooler. it was time for me to do an oil change anyways so i decided it would be best to just do all new gaskets on the cooler. i have gotten all to the...
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