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1-10 of 10 Results
  1. General Discussion
    Hi guys I have a 2005 sierra 2500 with the LLY. It's a project truck I have done lots of work to, I have done a couple other llys in the past but this one has given me alot of trouble, as 2 heavy duty mechanics have misdiagnosed it... work done; headgaskets, studs, glow plugs, heads milled and...
  2. 911 Problems Forum
    So this guy I know that didn’t know what he was doing tried changing his injectors on a LBZ 2007 6.6L. Now the truck will barely idle and is making an awe full noise. Getting a P0193 and a turbo underboost P0299 that was not getting prior to injector swap. Super rough idle. Any help would...
  3. 04.5-05 LLY Duramax Powertrain
    So this started back about 6 months ago but my truck has been doing the rough idle thing when it reaches ~160 degrees. I had a mechanic shop tell me it's my lift pump but I don't think that's true because it was also doing this before I installed the lift pump. I had a buddy tell me it sounds...
  4. 911 Problems Forum
    2009 gmc 3500 6.6 turbo. got on the highway the other day and seemed to lack usual get up and go at the top end.. heard light ticking- turned off the radio and barely heard it above road noise- checked all gauges within normal and no check engine light..proceeded carefully By the time I arrived...
  5. 04.5-05 LLY Duramax Powertrain
    Truck will start but can hardly remain running and definitely will not drive. Cannot get a read out on injector balance rates and there’s about a difference of -2 between DFRP and actual FRP. So I had dropped the truck off to get the ac condenser and heater core replaced and truck ran without...
  6. 911 Problems Forum
    I was working on our lly duramax today. I’m having issues with a rough idle among other things. It idles like crap and doesn’t rev past 1500. It has a little blue smoke, I pulled the plug on the ignition switch to try to figure out a range shift inhibited code, and it started to run fine, but it...
  7. 911 Problems Forum
    Okay guys I need some help big time here. I have a 2006 LBZ with a 68mm garret turbo, 45 over exergy injectors, built bottom end by Callie’s, 10mm cp3. truck issues started out when my light for change fuel filter came on and the truck started to run like it was on 6 cylinders but then cleared...
  8. General Discussion
    Last few months at idle I would have an occasional single hiccup at idle. After a small road trip this past week it sometimes does the hiccup or it goes into a full loping idle with puffs of white smoke. I have a balance rate between +7-11 on cylinder 3 in park when it does the lope. I’ve...
  9. 01-04.5 LB7 Duramax Powertrain
    Hi All, Truck: 2003 lb7 4x4 105000 mi, stock Finished buttoning up my injectors last night, started it up and idle's rougher than a rabid ape in an oil drum. I read a few threads where guys had this problem, and said it came out of it, just had to get the air out of the system. I started and...
  10. 911 Problems Forum
    Two weeks ago truck was lossing power accelerating and blowin out some white/gray smoke. Fuel filter was loose problem solved. After a couple days now no noticable loss in power while driving or towing, i pull a gooseneck about 3k miles a week loadin up to 26k. However idling its runnin choppy...
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