The LBZ Duramax: Reliability & Common Problems. Watch on. 1. Cracked Pistons. The LBZ is revered for its tune-only performance capabilities. With various upgrades, this engine is easily capable of producing over 600whp and 1,000lb-ft. of torque. However, one common failure point on tuned engines is cracked pistons.SOLD -2005 GMC Sierra 2500HD LLY CCSB 4x4 SLT, Factory moonroof and rear DVD for the kids!! Heated seats for the wife!! Rhino Liner, Chrome step tubes, EGR blocker plate and Fingerstick, LBZ Turbo Mouthpiece, 4" Magnaflow Turbo back Exhaust w/ 5" Tip, TxC Intake w/ Kennedy air box mod., GM #2 and #7 injector harness fix, 265/75/16 Goodyear ...My 2004.5 LLY has decided to shut off while driving at times, no start or start and then "misfire". The following codes have shown up. P0201-208, P2146, P2149. The same codes don't always show up when problem starts. The most common is P0201, P0204, P0206, P0207 and P02146 which I know are all on same FICM group.2004.5 Silverado 3500 SRW 4x4, D/A (LLY), Ext. Cab, Long Bed. engineer837 aux rad, TxC CAI, LBZ MP, Scangauge II, Nicktane aux filter head, KD lift pump, 2008 PS pump, 2011 hydroboost, Frederico Swaybars, Rancho 9000XL, Torklift StableLoads, BFG AT/KO2, Lance 835 Camper often in the bed. chevymec. C.MPG went from 11 highway to 16-17 highway. Now the truck has low power and wont boost past ~8PSI (setting doesnt have any effect and neither does load) unless you floor it then it will hit +22psi. When the boost sticks at 8psi it smokes pretty bad even cruising. After you floor the truck runs normal with little to no smoke and boost builds freely.05 lly GMC PPE EXCELLERATOR and fuel line race valve. BD Manifold, afe boost tube, afe turbo pipe, 5inch turbo back MBRP, Rick delance intake tube with modded stock air box, lbz mouth piece, pcv reroute kit, EGR blocker plate with finger stick, Fluid dampner, Good year gator back belt, resignator removed and capped, ATS tourqe converter and diff cover, Transgo shift kit.Idler arm and Pitman ...The head gasket issue with the LLY is mainly linked to overheating engines and owners running hot tunes with too much boost. Kinda like the problem the LBZ's have with cracking pistons running hot tunes. The LBZ mouthpiece and EGR blocker are not true fixes for chronic over heaters, the aux radiator is. The V2 is no longer available, TxC no ...Instrument cluster not working. So tonight I done the LED mod in my cluster, the lights look awesome, the problem is now the lights are the only thing that work. None of the gauges work, the gear selector doesn't light, the DIC doesn't work, and none of the warning lights work. All cluster back lights are on, turn signal lights work and check ...The LLY Duramax gets a bad rap because of a reputation for blowing its head gasket. But Duramaxtuner's panel of experts say not every LLY has that problem. I...Ally outages reported in the last 24 hours. This chart shows a view of problem reports submitted in the past 24 hours compared to the typical volume of reports by time of day. It is common for some problems to be reported throughout the day. Downdetector only reports an incident when the number of problem reports is significantly higher than ...LLY FICM - help needed. Jump to Latest Follow. 35K views 4 replies 3 participants last post by MTL_Dmax Jun 26, 2013. guga1979 Discussion starter. 385 …Boise, ID, USA. Dec 5, 2016. #8. aklbz said: You can test one by just plugging it in real quick and running it for a short time. Don't need fuel lines hooked up to test. Don't need the fuel lines hooked up ever :thumb: I've been running mine dry (no fuel lines connected) on the valve cover for 2 years & 20k+ miles now.P1241 - Injector 7 Output Circuit - Problem solved. ... All stock LLY except LBZ MP, egr blocker w/ fingerstick, PCV re-route and a 4" magnaflow exhaust combined w/ a MBRP cat delete down pipe. Rolls on Raceline 17x9 wheels w/ 35X12.5X17 Toyo open count mt's, AMP electric steps, t-rex billet grill, frontier grill guard, Avalanche roof rack and ...The problem the guys have found out is the gm put on a too small of a rad, this second one will do the trick! 2004.5 LLY, 4" turbo back magnaflow exauste, AFE blade runner (blades hoaned out) MP, DIY CAI, Edge juice w/ CTS monitor, B&W turnover gooseneck hitch, 285 75R 16's, nose shroud & stack seal.2005 lly, 7-10 psi at idle, 23-28 psi at 2000 rpms, have been told by 4 different duramax techs, this was normal but only in the 2005, lly,, not sure why but its scary when toting 13,500 lbs of 5th wheel cross country. 224,000 miles truck seems to run great, wish i knew for sure, Like.We can't recommend the 2001-2004 LB7, the 2004-2005 LLY, the 2006-2007 LBZ, the 2007-2012 LMM, or the 2011-2016 LML. Take a look at the most common complaints about these Duramax engines. ... Most commonly, this problem occurs with the LLY and LBZ motors. The underlying issue is the design of the glow plug modules, leading to failure. While ...rick33 Discussion starter. 25 posts · Joined 2012. #1 · Nov 13, 2012. I hope I am allowed to post this as it is an excellent read. Duramax LLY Overheating, LLY vs LBZ Air Intake, Overheating, cooling Fan. 03 LB7 Stock,365kms. 05 LLY PPE Tuner, 4" Exhaust, Cold Air Intake, PVC Reroute, EGR Block, 285kms. Save Share.37. Northern Ontario, Canada. Sep 12, 2017. #7. It chugs hard like a dog barking, while blowing thick black smoke, and then all of a sudden about 10 seconds it clears up and i can take off like nothing, while its chugging like a dog * literally sounds like a retarded dog barking * I can't go more than 30km/h.White smoke. Rough idle. Oil contamination. Symptoms: Symptoms of head gasket failure in LLY Duramax engines include overheating, loss of power, white smoke from the tailpipe, and coolant leaks. If you notice these symptoms, you must take your truck to a qualified mechanic for diagnosis and repair. Solution:Leaking transmission lines. Fueling / low fuel pressure. Piston / crankshaft failure. Allison 1000 power limitation. The LMM is an extremely capable engine. Two of these common problems are really cheats by me because there aren’t a lot of common problems on these engines and drivetrains.Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM acknowledged their problems when they corrected the original injector design and issued a 200,000 or 7-year warranty on the updated model.1,407.84. +1.04%. Find the latest Eli Lilly and Company (LLY) stock quote, history, news and other vital information to help you with your stock trading and investing.My check engine light had been on for quite a while and the codes that it was throwing were the typical turbo vane position sensor and underboost etc. After reading threads on here I geared up to take off the position sensor and clean it. Upon my initial inspection I found that the wire to the sensor had been rubbing between a couple of hose ...I received a DTC code of U0106, "lost communication with glow plug module" I replaced the glow plug controller back in April with an OEM p/n973796350 due to a DTC P0607. Everything appeared to go well till yesterday. The truck seems to run correctly, however I just don't know where to start. 2004.5, 2500-HD, CC, LB, LLY 4x4, Allison 1000.That problem is sometimes caused by a loose connector at the injector. The cheap fix that will last, is to remove the connector, place it against something flat, and push a SHARP ice pick into both terminals. This will raise a dimple inside the connector for a better contact. Do this for #2 and #7 injectors.The head gasket issue with the LLY is mainly linked to overheating engines and owners running hot tunes with too much boost. Kinda like the problem the LBZ's have with cracking pistons running hot tunes. The LBZ mouthpiece and EGR blocker are not true fixes for chronic over heaters, the aux radiator is. The V2 is no longer available, TxC no ...2005 Silverado EC/SB, LLY, 4WD, EFI DSP5 V2 (Idaho Rob at ATP), Edge CTS w/ EGT probe, LML Exhaust Manifold, PPE shimmed FPRV, Banks LBZ Ram Air Intake, RDL EGR Delete, LBZ Turbo Mouthpiece (w/ blocked resonator & rerouted PCV), Kennedy twin lift pumps w/ megafilter, Corsa 4" Turbo Back 304 SS Exhaust, Mike L tranny cooler, EXAXT Steering System, Redhead Power Steering Box w/ Amsoil PS fluid ...45 posts · Joined 2015. #2 · Jul 31, 2015. My truck did the same thing a week after getting it. Road trip on Wed without issue, hard shifting and limp mode on Thurs. TCM failed and had to be replaced. evidently it is common issue for them. Diesel newbie. 2007.5 Chevy 2500HD LMM Crew Cab 2WD BW hitch. Like.85 posts · Joined 2017. #2 · Mar 1, 2020. Try taking the cap off and soaking it in hot soapy water overnight, or replace. Usually if the cap is stuck the upper rad hose will be collapsed. If you want to get some of the coolant out of the overflow you can drain a bit of the coolant with the cap still on, and it will act as a vacuum and suck ...Water Pump Failure. Fuel Filter Housing O-ring Leaks. Blown Head Gasket. Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7’s: Crankshafts + connecting rods break at high hp.Turbo coolant inlet pipe leaking need to remove. I am need of some help. I have a coolant leak and I have narrowed it down to the turbo coolant inlet pipe at both ends. The rubber hose is leaking and the apparent crush washer is leaking at the connection to the turbo itself. The coolant flows down the drivers side rear of the engine.The head gasket can be a severe issue for the LLY Duramax and not the other versions. This problem is caused by the large factory turbocharger and a poor cooling system. Also, aftermarket modifications can contribute to this common problem. 2004-2007 Duramax Turns Over But Won't Start. The most likely problem will be with the Prime.Eli Lilly and Company ( NYSE: LLY) has become the key beneficiary of the rally in weight loss drug stocks, which has gained momentum over the past year. Specifically, LLY has appreciated almost 5x ...The problem the guys have found out is the gm put on a too small of a rad, this second one will do the trick! 2004.5 LLY, 4" turbo back magnaflow exauste, AFE blade runner (blades hoaned out) MP, DIY CAI, Edge juice w/ CTS monitor, B&W turnover gooseneck hitch, 285 75R 16's, nose shroud & stack seal.Recliners are popular pieces of furniture that provide comfort and relaxation after a long day. However, like any other piece of furniture, recliners can encounter problems over ti...Eli Lilly and Company ( NYSE: LLY) has become the key beneficiary of the rally in weight loss drug stocks, which has gained momentum over the past year. Specifically, LLY has appreciated almost 5x ...2005 Silverado EC/SB, LLY, 4WD, Edge CTS w/ EGT probe, LML Exhaust Manifold, PPE shimmed FPRV, Banks LBZ air cleaner, Profab intake, LBZ Turbo Mouthpiece, Kennedy twin lift pumps w/ megafilter, Corsa 304 SS Exhaust, Mike L tranny cooler, EXAXT Steering System, ...Rpm gauge problems. LLY: Jump to Latest Follow ... 2004.5 2500HD LLY EXT CAB L/B Allison 4x4 Skyjacker 6" lift, Edge w/ Attitude, 4" turbo back exhaust, BD Exhaust Manifold, BD Exhaust Brake now replaced with Banks TurboBrake, Nicktane Filter, Kennedy Lift Pump, EGR Delete, Mag-Hytec trans pan and diff cover, Suncoast Transfer Case Support ...The LLY Duramax 6600 liter of the year 2004 is a transitional engine. It is the stage where the engine evolved to meet the stricter modern carbon emissions controls established in the United States of America. Duramax maintained the engine’s competitiveness in the market. The 6.6-liter engine abandoned the LB7‘s fixed geometry waste gated ...18259 posts · Joined 2008. #3 · Jan 26, 2011 (Edited) Some of the LLY engines did overheat--- when towing a large heavy unit, up a steep grade, and at a slow speed. Most people did not meet the conditions and never had problems. The fix was to add extra cooling to the system, with an additional small radiator.2005 chevy duramax 2500hd lly deleted, some fancy wc piping, no tunes. Save Share. Like. ... I have a GMC 2006 2500HD 6.6 Duramax and had problems with tractor mode at 180K miles. I changed pigtails on my #2 and #5 cylinders and also did the ice pick trick with no sucess. I also changed injectors thinking I may have had a couple of bad injectors.The AC compressor will kick in for approximately 3 seconds in 6 second cycles. When I put my finger on the relay, I feel it click on and off when the compressor does. It does not blow the smallest amount of cold air. I doubt the AC system has ever been serviced. My first thought was low freon, so I recharged it to the proper PSI. Nothing changed.First I doubt that the lower hose was loose-- most likely the water pump-- Common problem considering the age and miles. Also many of the LLY engines are having leaking head gaskets-- fill the coolant, bleed out the air at the bleeder screw-(Small bolt where the top radiator hose/pipe connects to the engine).85 posts · Joined 2017. #2 · Mar 1, 2020. Try taking the cap off and soaking it in hot soapy water overnight, or replace. Usually if the cap is stuck the upper rad hose will be collapsed. If you want to get some of the coolant out of the overflow you can drain a bit of the coolant with the cap still on, and it will act as a vacuum and suck ...Water Pump Failure. Fuel Filter Housing O-ring Leaks. Blown Head Gasket. Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7’s: Crankshafts + connecting rods break at high hp.2006 LLY with some miles-EFI Live(Best Investment Ever!!!!)-Turbo-Back RBP 4" with no muffler and my cat ran away:rof-limo tinted windows all the way around except winsheild ... I have a similar problem and have had it since day ONE. No leaks. Serpentine belt is fine. 80K mile. 2005 3500, SRW, 4x4, crewcab.This is a common problem for the LLY engine. Everyone that has a LLY should check this now! Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, de-badged, 65 Gallon replacement Aero tank, LBZ-mp, Kennedy pump, shimmed, Pre-fuel filter, tow mirrors, BU cam, gauges, GPS, Sirius, bags, custom grille, fender vents ...Duramax LLY Cold Air Intake Benefits. +5-15 horsepower. +10-25 lb-ft of torque. Increased fuel economy. Increased engine sounds. Increased throttle response. There are a few benefits to upgrading the stock intake to a cold air or ram air intake, but the most important is the increase in horsepower and torque. With a cold air intake you can ...The LLY did have a problem with the FICM harness at the passenger side of the alternator. The harness is tied down with a tie strap. The sharp edge of the FICM bracket, cuts into the protective cover and wires- shorts the injection. Cut the tie and inspect the wires. Insulate the harness with a short piece of heater hose.May 13, 2014. 244. 1. 18. Blythe ca. Nov 27, 2016. #3. catman3126 said: let the pressure out when its cool, top the coolant off. drive it 30-40 miles and let it get hot, park it and checl the top radiator hose in the morning and see if its firm ike a tennis ball. if so pretty good chance your gaskets are done. time for studs.If yours is FE9 most likely you won't get any codes when unplugged. Even 06/07 Classics you can unplug EGR and have no codes. Some will pop a code unplugged only doing hard pull hills. That's all you need is use your Edge to erase code. 2020 GMC Sierra SLT 3500 CC/SB L5P 3/14/20 Payload 3726lbs. AirLift LoadLifter 7500 XL.205 posts · Joined 2013. #11 · Feb 3, 2014. No codes, and yes a full make the truck shake dead hole thump in the exhaust missfire...but only when creeping in gear and sometimes for a second when the a/c compressor cycles on when in neutral. Its worse when its warm.Solution: Use the blue card that came in the box to register your software. 2. Something to the effect of the firmware is not compatible with this version of EFI Live. Solution: Download EFI V8. When you get it downloaded open it up with your V2 connected. Go to devices, and update the firmware on your V2 from there.This category is dedicated to the GM Duramax LLY 6.6L diesel engine in Silverado and Sierra 2500/3500 trucks. Our Duramax LLY content includes articles such as the best LLY performance upgrades and the most common engine problems. Duramax diesels are a big focus for the ChevyTrucks team, so check back for more unique, insightful LLY guides.Edge Juice With Attitude: This is generally considered not the greatest tuner for the LB7/LLY/LBZ engines because of some strange electrical issues that it can cause. If you have this tuner, you CAN send it back to Edge and they will put new software on it that will fix any problems that it has. 2. Edge Juice With Attitude CS / CTS: This is the ...LLY Duramax Pros. The LLY Duramax engine is one of the most reliable diesel engines made by GM. It has been proven to last over 150,000 miles without major problems. The LLY Duramax has 310 horsepower and a whopping 605 lb/ft of torque at 1,600 RPM. This means that you can tow almost anything with this engine.These codes indicate the following: U-0105: This code indicates lost communication with your FICM. P0611: This code indicates a non-voltage modified FICM. It means the relay system is experiencing internal issues. P0335: The code indicates the CPK circuit is faulty. P0340: The code indicates the CPM circuit is faulty.SGDIESEL. 74 posts · Joined 2009. #3 · Dec 9, 2010. the turbos thermostatic coolant valve should dump coolant into radiator return tube after the main thermostat. so if it sticks open then coolant would be bypassing the main instead of being held until operating temp is reached. 06 LLY. K. knuckledrager Discussion starter. 209 posts · Joined ...Other Duramax LLY problems included the following: Head gasket failure. Injector harness chafing. Water pump failure. EGR valve issues. Glow plug failure. Fuel …Small Business Owners See Inflations as Biggest Problem. That’s according to the NFIB Optimism Index for March 2022. For months, small businesses owners cited the lack of available...In this video, Zach covers the background, specs, common problems, and reliability for the Dodge 5.7 HEMI. If you would like to read up on our blog covering ...Transfer case output shaft play/slop! Copy and paste from another forum.. I know, I did search it like crazy, and only found 2 post where they had this issue. I noticed a noise under the truck, climb under and could push up and down on the drive shaft at the transfer case and had movement. As I would push up, I could hear a "tap" "tap" inside ...However, if you are looking to keep it stock, the LLY can be a very stout engine! Jake is going to explain common problems, reliability, engine specs, and more.Injector Harness: https://amzn.to/3vNzkXqInstagram: @jw_montoyaDmax Merch: https://teespring.com/jw-duramaxPeachbelt Merch: https://teespring.com/shop/peach-...The sharp corner of the FICM bracket cuts into the wire loom and the wires. Cut the zip tie and inspect the wires inside the plastic loom. Repair the wires as necessary-- Best to isolate the harness with a short piece of heater hose. Common problem with LLY engines. 07 Chevy Classic 2500HD 4x4 2LT LBZ CC/SB White.Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain 2005 EGR problems. Jump to Latest Follow ... Sometimes adding a full straight pipe exhaust will cause those codes to come up. I had the same problem before. 2018 GMC 2500 HD CC/SB Stock 2006 2500HD GMC Sierra SB/CC SOLD. Save Share. Like.102 posts · Joined 2009. #1 · Feb 18, 2011. Installed my sinister egr delete kit a week ago went on very easy but!!!!now under high boost my o-ringed intake tube blows off.Has anyone had this problem if so how do you fix it with out going back stock and trashing the kit. 2005 lly sold 4inch magnaflow turbo back / 80 hp propane / ats epower ...codes (But NO CEL): P0671, P0675, P0677 - Glow plug 1, 5 and 7. Ohm'd all 4 on the passenger side with known codes for 1, 5, and 7 being the bad GlowPlugs. I tested them in the block by removing the wire to each of them and running test leads from block to the lead on the GP on the 0.00 (20k) setting.Lb7 duramax diesel rpi maf 6lCommon problem with lly duramax Duramax engine lly ebay 2005 partsHow to remove a duramax engine. The 5 most common duramax lb7 engine problemsDuramax lly Duramax lly egr problems acdelco dieselresourceGm duramax. Duramax 6.6 LLY Engine In lieu of covid-19 EMAIL for price – Diesel. Check …I have a 06 lly duramax with 6 gun banks tuner with pda read out, 5 inch dimond eye exgaust, 6 inch lift, 35 by 12.50 tires and banks cold air intake. My dad started my truck and it sounded different. I wasnt there so i dont know exactly what was different. The check engine light came on and it said low fuel rail pressure and was in limp mode.-04.5 LLY, CCSB, Silver Birch-68mm Cheetah, Suncoast stage 4/triple disc converter ... Turns out Egt's weren't my problem. A 6mm bolt somehow worked it's way into my intake tube and found it's way to the turbo. Weren't any blades left on the impeller, chewed off every one. Put the new LMM turbo on with a Diamond Eye downpipe and everything ...However, if you are looking to keep it stock, the LLY can be a very stout engine! Jake is going to explain common problems, reliability, engine specs, and more.Aug 4, 2020 · The LBZ Duramax: Reliability & Common Problems. Watch on. 1. Cracked Pistons. The LBZ is revered for its tune-only performance capabilities. With various upgrades, this engine is easily capable of producing over 600whp and 1,000lb-ft. of torque. However, one common failure point on tuned engines is cracked pistons.2006 - 2007 GM 6.6L LLY/LBZ Duramax; 2004.5 - 2005 GM 6.6L LLY Duramax; 2001 - 2004 GM 6.6L LB7 Duramax; 1992 - 2000 GM 6.5L; 2020-2024 GM 3.0L 1500 Duramax; GM Main Menu; ... As with any mechanical problem, there will be symptoms that present themselves to give you a clue that something is wrong. In the case of a boost leak, your engine will ...At least I found the problem. Was a sure thing. A few less things are going back on, like whole EGR system and a few more upgrades while in there. Good luck. 04.5 GMC CCSB, 6" Procomp Lift, (Lowered to 4"), EFI w/DSP5 (Kory Willis), Trans built by (Calvin's), Edge CTS, 5" Turbo Back Exhaust, Diamond Eye DP, BD Manifold, EGR system (removed ...Was wondering if anyone has had problems with surging during idle in nuetral or in gear. Have checked with OB2 reader and had into Chevy dealer and found no codes. ... in the mechanic at first said they have been not having any problems with the 05 LLY but this time they looked into the problem and there is a flash for the 05 LLY but the truck ...