Commonly associated with DTC P2563 P2564 and P003A on LLY LBZ and LMM Duramax engines. The cause is the unison ring sticking on the pilot. This is due to corrosion from corrosive condensation. There are plenty of how to online for removing the turbo from the truck so I'll just add some notes and assume you have a decentYou have some sort of electrical problem. Most lly's rub the FICM wires through right at the alternator. That causes reduced power aka 'limp mode'. There's also another place where the wires go further down and towards the valley that is problematic. You should have an associated P0207 or P0202 to go with the 2146/2149, but you don't so that ...Join this channel to get access to perks:https://www.youtube.com/channel/UCpEtA2y6ZwvuYVeH6Kvz7IQ/joinJW Merch here: https://jwmotorsportsco.com/Denali Playl...2004.5 LLY Fuel Problems. LLY: Jump to Latest Follow ... 04.5-05 LLY's surge at idle some of the things that are common on them is you need a new FPR or search Ice pick. 07 Chevy Classic 2500HD 4x4 2LT LBZ CC/SB White Nasta Nerf Bars, Line-x, Rancho RS9000XL Shocks, Firestone air bags, Fold-a-cover, ...16DIRTY-MAX16 Discussion starter. 38 posts · Joined 2012. #1 · Nov 29, 2012. I am having terrible mileage on my 04 LLY. By terrible I mean I am averaging 10.5MPG city. My truck has 341,000km with a LBZ Turbo Mouthpiece, AFE Stage 2 Intake, 4" Turbo Back Exhaust, EGR Delete/Blocker. Fuel Filter is new, the Fuel pressure regulator is new as well.Front end failures are one of the most common LLY Duramax problems. What Do I Need to Check Every Time I Service my Truck? Here’s a little checklist of things you need to do check time your perform maintenance on your LLY Duramax. Check all areas and components holding fluid or oil for leaks.Jan 23, 2022 · 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.M.A.M. 9116 posts · Joined 2014. #3 · Apr 17, 2020. Your ninth injector is leaking. It's dumping fuel into the exhaust, that's why it's wet and you were seeing smoke, as well as smelling the diesel. I would get it fixed ASAP. Sent from my iPhone using Tapatalk. 2017 GMC 3500 DRW/CCLB . --2015 GMC 3500 SRW/CCLB-- .My truck is running rough trying to figure the issue out.Apr 28, 2022 · You have some sort of electrical problem. Most lly's rub the FICM wires through right at the alternator. That causes reduced power aka 'limp mode'. There's also another place where the wires go further down and towards the valley that is problematic. You should have an associated P0207 or P0202 to go with the 2146/2149, but you don't so that ...Better that than not enough. First fix what’s obvious and find the coolant leak. Get your batteries and alternator load tested, because low voltage can cause all kinds of electrical gremlins. Also visually check the main wire loom in the engine compartment that runs through the whole area and connects everything.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 ...First is how much can the LLY engine put out without the listed problems. The answer depends on how long. Without engine work, the stock LLY can put out ~500rwhp. How long at that level before you have problems? ... 2004.5 LLY 2500HD EFIlive , EGR blocked, PCV reroute, resonater plugged, nicktane fuel filter adapter, 4in magnaflow exhaust, LBZ ...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.A FEW THINGS YOU SHOULD KNOW. Securities products and services offered through Ally Invest Securities LLC, member FINRA/SIPC.For background on Ally Invest Securities go to FINRA’s BrokerCheck.Advisory services offered through Ally Invest Advisors Inc., a registered investment adviser.jc1843. About the only way to guess if it has blown head gaskets is to drive the vehicle and monitor the temperature gauge. If it moves a lot-- and the heater blows warm air and then cold air, I would suspect a leaky head gasket. Also let it idle with the reservoir cap off and look for bubbles.Gallbladder problems. Gallbladder problems have happened in some people who use Zepbound. Tell your healthcare provider right away if you get symptoms of gallbladder problems, which may include pain in your upper stomach (abdomen), fever, yellowing of skin or eyes (jaundice), or clay-colored stools. Inflammation of the pancreas (pancreatitis).Duramax LLY Engine Problems. Bent rods; Head gasket failure; EGR valve failure; Glow plug failure (2006 only) Overheating (pre-2006) Fuel pressure relief valve; If you would rather consume this content via a video, check out our Chevrolet LLY Duramax Common Problems video below:The FPRV is a valve that connects to the rear of the driver's fuel rail. It has a spring inside, and if the rail pressure overcomes the spring pressure, it dumps fuel back to the tank. LLY engines are known to have a weak spring. The cheap fix is to add a couple washers to the spring to increase the relief pressure.Injector Harness: https://amzn.to/3vNzkXqInstagram: @jw_montoyaDmax Merch: https://teespring.com/jw-duramaxPeachbelt Merch: https://teespring.com/shop/peach-...Racor PFF4245R2-02 is direct replacement for LLY filter head. and you get a new filter to boot! Merchant Auto sells the seal kit to repair your stocker. Dorman also came out with their version -- #904-124 New seals solves the problem most of the time, but will not fix a cracked filter head.LLY Cold Start Issue. I have a 2004.5 GMC Duramax LLY. I have some trouble starting it up in the cold. 20 F and above its fine. But anything around 10F or lower it cranks and cranks and takes a while to start up. This is after having my block heater plugged in all night and cycling the glow plugs a few times.Eye problems are some of the more noticeable health conditions - as soon as your vision goes blurry or your eyes become dry, you know something's up. Try our Symptom Checker Got an...Nov 8, 2013 · 05 LLY 2500HD 4x4 silvermist metallic pcv reroute, Profab egr delete pipe,LBZ mouthpiece, 4" magnaflow exhaust with Profab 3" downpipe, Moonshine EfiLive switched w/Edge CTS, 20" American Outlaw buckshots on 275/60's, stock keys all the way down, rough country tie rod sleeves. --Drop shackles and a built tranny to come soon.05 ext cab lly. 6" fabtech suspension lift. 38x13.5r20 toyo open country. muffler delete. dual 4" mbrp exhaust. afe turbo inlet. k&n intake. EFI live dsp5.suncoast stage Iv trans. precision industries torque converter. transfer case brace. pump rub prevention plate. AD 150.A FEW THINGS YOU SHOULD KNOW. Securities products and services offered through Ally Invest Securities LLC, member FINRA/SIPC.For background on Ally Invest Securities go to FINRA’s BrokerCheck.Advisory services offered through Ally Invest Advisors Inc., a registered investment adviser.Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain. Bad ECM symptoms. Jump to Latest Follow 50K views ... Not a problem man. Yesterday it wouldn't run long enough to run a diagnostic test. Today i went out one more time to check wire rub.2005 LLY Electrical harness issues (FICM, injector) Friend borrowed the truck and on his way home it shut down while driving. Threw codes 201,02,03,04,05,06,07,08 2146, 2149. Got the codes cleared, primed fuel filter and that got him home but sounded like a tractor in limp mode for last 30 seconds. Cleared codes again, started for a minute ...Cdieter Discussion starter. 8 posts · Joined 2019. #1 · Sep 7, 2019. Hello, I have a 2005 LLY, it is studded, deleted with an older edge racing tuner, EGR deleted, has all new injectors, new cp3, race fuel plug, and all new hoses on the fuel side and a FASS 150. 90% of work has been completed in the last 2 years by myself and a friend who's a ...I would continue to explore those wires. First of all, disconnect and reconnect one connector, then see if problem is fixed. The do same with the other connector. There could be a pin contact problem between the looms and the TCM. If no joy, then wiggle each loom and see which loom causes that change.This is part 1 of the loss of continuity to injectors 2 or 7 due to faulty oem pigtail on the 1st gen LLY model Duramaxes. Part 2 shows the "ice pick" fix th...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.My buddy is having some problems with his 05 lly. Codes are po300 random cylinder misfire, po301 #1 misfire,po304 #4 misfire, po306 #6 misfire, po307 #7 misfire. It will randomly throw these codes and only run on 4 cylinders. It sounds like a little 3 cylinder tractor when this happens. It is random-does it cold or hot.Duramax Engine LLY 2004.5 to 2005. In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 ½ redesign, but the LLY Duramax would occasionally exhibit a trouble …LLY issues. Jump to Latest Follow 8K views 18 replies 8 participants last post by jc1843 Dec 21, 2016. dirtymax912 Discussion starter 72 posts · Joined 2010 Add to quote; Only show this user #1 · Jun 26, 2016. Here's the …Apr 12, 2017. #6. Possible y bridge elbow. I purchased and EGR delete pipe for my truck. 05 LLY Kory Willis Tuner, New Alum Mouthpiece, Cat Con Delete And. Dr. Sadler Twister Injectors with flow matched Injector Pump. The first time I got on it the aluminum elbow blew out of the y bridge.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 ...Dealer wants over $2000 to fix this two-bit problem. I'm looking for a cheaper way or advice on if this can just be ignored. One fix is to rtv the charge air pipes to prevent the dripping. ... 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 ...Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain. lly common problems? Jump to Latest Follow 21 - 25 of 25 Posts. 1 2. battlegraduate09 · Registered. Joined Mar 25, 2010 · 7,344 Posts #21 · Jul 22, 2011. Only show this user. you can do studs without doing gaskets. yes. ...0. 0. Mar 23, 2017. #1. I am trying to help out a friend of mine. His EGR cooler started leaking so he installed a sinister diesel EGR delete kit. The truck threw the usual EGR codes and went into a fuel limp (wont go over 2000rpm). I efi live tuned the truck shutting off the EGR codes hoping that would help but the truck was still in a limp ...Nov 5, 2020 · 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.LLY glow plug controller FIXED (the dreaded U0106 code) It seems that a lot of ‘04.5-‘05 LLY Duramax trucks are having similar problems with the glow plug controller, so I wanted to post the problem and the solution for others who may be going through the frustration that I had to go through. Last summer, I was towing my camp trailer home ...The LLY FICM is showing more and more as 'no longer available' and $1300 at some places that do still have them. Thats CRAZY. Having a good one on the shelf 'just in case' for only a couple hundred bucks just sounds smart to me. I spend more than that at the car wash every year for the thing. LoL.#1 · Jun 10, 2013. My cousin has an LLY with approx 100k on it. It is basically stock except for an edge juice programmer set at 80hp and a silverline exhaust. It is throwing codes …LLY problems. Jump to Latest Follow ... 05 LLY 4" Volant front pipe to single 6" Black Stack, Home built GT3788r over s475, up pipes and pedistal, AirDog II, AEM Filter, custom 4link air ride suspension, DJM upper and lower control arms, Mcgaughys spindles, Raceline CR2s ...LLY. About us. Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on the Duramax platform. From all out performance builds running 8 second ¼ mile territory, to ...2004.5 GMC, LLY, CCSB, SLT, 4WD, 4inch Exhaust, Diamond Eye Down Pipe, DSP5 from Idaho Rob, Edge CTS, Killerbee mouthpiece, PCV Reroute kit, EGR Blocked, 172K 2013 Jayco 30.5bhlt 5'er Save ShareMy buddy is having some problems with his 05 lly. Codes are po300 random cylinder misfire, po301 #1 misfire,po304 #4 misfire, po306 #6 misfire, po307 #7 misfire. It will randomly throw these codes and only run on 4 cylinders. It sounds like a little 3 cylinder tractor when this happens. It is random-does it cold or hot.I have a '05 LLY GMC Sierra 2500HD. I had a FASS Titanium 165 gph installed last year. It is specific for for the '05 LLY year. Sounds like you have the wrong pump. My shop stopped selling and installing Air Dogs a few years ago. Had to many problems with them. I think FASS is the way to go. He has never had any problems with FASS lift pumps.05 LLY problems. Jump to Latest Follow 14K views 30 replies 11 participants last post by 830king Dec 1, 2014. Blayze2010 Discussion starter 24 posts · Joined 2014 Add to quote; Only show this user #1 · Aug 20, 2014 (Edited) Ive had my 05 LLY for about 5 months and its been nothing but trouble. ...Coleman furnaces are known for their reliability and durability. However, like any other appliance, they can experience problems from time to time. One of the most common issues wi...I am going to run the 2020 oil cooler as well as a large external oil cooler for overkill. The 01-16 cooler has 10 plates, 17-19 cooler has 14 plates, and 2020 cooler has 20 plates. Any cooler 17-20 is a major improvement even in terms of coolant flow. To run the 2020 you need the elbow, gasket, and cooler from GM.2004.5 LLY CCSB LT 4X4. 5" inch cat back exhaust. K&N air intake. C20ELEPHANT. 7094 posts · Joined 2013. #3 · Apr 13, 2016. Replace the batteries if you know their bad, these trucks do some weird things when the batteries are going south, the fan clutch is mechanical so replacing it might be the fix there.. ~ Mike H.~ .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.16. Reaction score. 1. May 16, 2008. #13. The LLY has an injector harness issue. It can rub through at the alternator bracket or injectors #2 and or #7 connector can get bad and need the ice pick treatment. The injectors, like anything else mechanical, can fail, but it is not as common and you can fix them one at a time. D.anybody know a fix to when i try and download games and even with the screen on the ally on why it randomly disconnects from my wifi how can youy download games if it will just keep disconected i never had this problem before and i …04.5 2500HD LS 4X4 LLY Ext Cab LB Dark Gray Metallic 265/75/16 Bridgestone REVOS ... Mine does it as well, is part of the low RPM surge, and the reflash only fixes a percentage of the trucks with the problem. My LLY is one they can't fix. 01LB7 & 04LLY Chevy D/MAX-ALLISON, 2500HD, 4X4 crew cab. 04 35' Montana Fifth Wheel.2005 LLY Electrical harness issues (FICM, injector) Friend borrowed the truck and on his way home it shut down while driving. Threw codes 201,02,03,04,05,06,07,08 2146, 2149. Got the codes cleared, primed fuel filter and that got him home but sounded like a tractor in limp mode for last 30 seconds. Cleared codes again, started for a minute ...Advertisement Gasoline has two problems when burned in car engines. The first problem has to do with smog and ozone in big cities. The second problem has to do with carbon and g...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.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.Feb 18, 2011 · 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 ...After six weeks, I'm really getting creative in my search for the problem(s). Additional ideas will be greatly appreciated. 2005 LLY 2500 HD, pretty much stock. 337K Miles Use the old style Superchip programmer, ... All stock LLY except LBZ MP, egr blocker w/ fingerstick, PCV re-route and a 4" magnaflow exhaust combined w/ a MBRP cat delete ...Tuning LLY with EFILive issues . I am trying to tune my 2005 LLY with EFILive and PPEI tunes. ... The trouble is that they sent me a tune for an automatic, while mine is a ZF6 manual; now I have to load a new tune specifically for the ZF6 and I can’t remember which ECM plugs to pull.I have an 05 lly that gave me an oil pressure low on dic and lost oil pressure gauge simultaneously on start up. I checked oil, level good, and restarted with same result. Figured sensor bad, talked to gm folks, they thought same. Changed pressure sending unit, no low pressure message but still no gauge pressure. Measured pressure remotely, good.Jul 6, 2021 · LLY: 2004.5 – 2006. The LLY Duramax engine was only in production for a short time. It was nearly identical to the LB7 engine and emissions control parts continued to be absent. GM had fixed the injector problems by the time this engine came out. Instead, the LL7 had issues with overheating when towing heavy loads or driving in hot temperatures.2005 LLY Electrical harness issues (FICM, injector) Friend borrowed the truck and on his way home it shut down while driving. Threw codes 201,02,03,04,05,06,07,08 2146, 2149. Got the codes cleared, primed fuel filter and that got him home but sounded like a tractor in limp mode for last 30 seconds. Cleared codes again, started for a minute ...Check your instrument panel IPC fuse, may be on left side of dash if not under hood. Also check Radio fuse. Those are often bad. Instrument panels are also often bad. If you unplug your IP and the problem goes away, you have likely found your problem. Also, use your computer to search for others who may have had similar …Mar 19, 2024 · As for the Duramax LLY engine fitted in the 2004 – 2005 Chevrolet Silverado, Hummer H1, and GMC Sierra HD, the most common problems that owners experience include overheating when towing and blown head gaskets. The LBZ is perhaps one of the most desired Duramax engines. It addressed the overheating and blown gasket issues that plague the LLY.mattenderle said: Introduction: This guide will demonstrate the procedures to install the LBZ/LLY fuel pressure regulator in the LB7 duramax. The time taken to accomplish this was around 1.5 to 2 hours. If you don't have all the tools listed below it may be slightly difficult to accomplish in that time frame.GM only produced the Duramax LLY engine for a short time. It was almost identical to the LB7, with emissions control parts still absent. GM had resolved the injector problems by the time the LLY engine was released. Instead of injector problems, the LLY had overheating issues when driving in hot temperatures or towing heavy loads.The commanding issue most LLY owners worry about is this engine’s tendency to overheat, especially when towing. In reality, not all trucks overheat, but it’s a common enough problem that it gets a …The fuel system works like this-- when the ECM senses low fuel on the side tank-, the DK Green/white wire turns on the underhood fuel pump relay and that turns on the transfer pump-through grey wire, and then moves fuel from the rear center tank-- to the side tank. Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep ...WVRigRat08. 8658 posts · Joined 2009. #4 · Apr 14, 2014. Some guys buy a shim kit (recommended), and some buy a race valve or plug. I plugged mine a lot of guys are against it. 05' Chevy LT Black on Black LLY CC/SB Blackout Performance built motor/trans/tuned- Gone. "The Blessed Hellride"-Summit white 08' GMC Sierra SLT Z71 …2004.5 LLY GMC Sierra 2500HD CCLB 4x4, Auto Cal, 5" DE exhaust w/ muffler, AFE turbo inlet, S&B intake, stock tires (TOYO). Save Share. Like. Sort by Oldest first ... When there's a connector problem it shuts down all the injectors on that side [IN THAT GROUP] of the engine. I would try the ice pick fix first, a new FICM is an expensive guess ...Follow. Sept 28 (Reuters) - Eli Lilly and Co (LLY.N) and a former employee agreed to settle a lawsuit in which the worker claimed she was terminated after pointing out poor manufacturing practices ...05 LLY, HSP intake, Duramaxtuner Spade Jack, de-chromed to black. There are several areas where GM thought it would be ok to run wiring harnesses tight against something that could eventually wear through. One was the injector harness over the FICM bracket (passenger side, up front).LLY problems. I recently got an 04.5' LLY from a used dealership with 133k, I noticed it would blow a lot of black smoke on half to full throttle. I've checked for boost leak, replaced air filter, cleaned maf. Also purchased a new one waiting to receive it in the mail, as I live in Juneau, Alaska. I am leaning toward a possible injector ...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.Boosted Performance is now LIVE! LLY Performance Parts: https://boostedperformance.com/duramax-llyIn this video, Jake covers the LLY Duramax engine. Produced...BLUEDURAMAX Discussion starter. 168 posts · Joined 2006. #1 · Feb 15, 2024. I have 2005 3500 DUALLY 4X4 bought it new in 2005 has 160000 miles now. I drove it 200 miles and no problems came home parked it overnight. Started it up the next day it ran for about 1 minutes and died. The low fuel light was on when i started it.lly headgasket problems, help. Jump to Latest Follow ... 2004.5 LLY Reg, cab long box 6 speed manual trans 4x4 Metallic Blue 130,000 miles afe mouthpiece, 5" mbrp straight pipe, de downpipe, sb intake, pcv reroute with plugs , ultra lite boost and egt guages egr blockedThe answer to a subtraction problem is called the difference. The value being subtracted is called the subtrahend, and the value from which the subtrahend is being subtracted is ca...Upgrading the LLY downpipe can help reduce EGTs by a significant amount, improve turbo response, help fuel economy and free up a few trapped horsepower. In this guide we’re going to discuss the important of LLY downpipe upgrades and the performance and reliability benefit they add. We’ve manufactured an LLY downpipe upgrade via our in-house ...LLY trouble shooting. Ive been chasing a problem for a few weeks now and was looking for some help/suggestions. I have an o4 with the lly, MBRP 4 in exhaust no muffler or cat. With an edge w/attitude installed it would occasionally buck from 1600-2k rpm and blow white smoke, usually when gradually rolling into the throttle.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 ...RedBowTies88. 12722 posts · Joined 2009. #5 · Feb 16, 2010. The code could be do to a boost leak or a faulty map sensor. Beech - 05 LLY CC/SB 4x4. [email protected] On stock turbo and fuel system. Thanks to, Big Dipper, Efilive, Calvert, Precession Converters, Nick@Duramaxtuner, Eaton, Pureflow, and Falken. Like.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.You could get lucky and it just be a clogged coolant reservoir cap. Soak it in soapy water overnight, replace and see if it fixes your problem. I hope that's your only problem After you resolve it, I'd highly recommend upgrading your turbo mouthpiece. That is a cheap and easy fix to a lot of LLY overheating issues.I had problems at 1000psi and it was high return rates on 2 injectors, i know that the injectors isnt such a big problem on you model but can still be that.. Test the balance rates ... 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 .... Why does gasoline contain MTBE, and what is the problem with it? AdveLLY Cold Start Issue. I have a 2004.5 GMC Duram Ridin'GMC. 3384 posts · Joined 2007. #2 · Sep 5, 2009. If the turbo boost sensor voltage was high, it has a bad sensor which will cause the boost control solenoid to malfunction. Replace the Turbo boost sensor. 06 LLY CCSB. Just another white truck on the site. Stock engine and trans. Like.Duramax LML Engine Problems. CP4.2 Injection Pump Failure. DEF Heater Problems. NOx Sensor Failure. DEF Pump Failure. The buzzkill of the LML is the CP4.2 injection pump. Outside of this problem, there aren’t many major or costly common problems associated with the engine. Fortunately, there are some relatively simple ways to prevent these ... Oct 2, 2017. #2. You should have your bat Cdieter Discussion starter. 8 posts · Joined 2019. #1 · Sep 7, 2019. Hello, I have a 2005 LLY, it is studded, deleted with an older edge racing tuner, EGR deleted, has all new injectors, new cp3, race fuel plug, and all new hoses on the fuel side and a FASS 150. 90% of work has been completed in the last 2 years by myself and a friend who's a ...Most LLY overheating issues come from out west from people towing large/tall (high wind drag) campers on long/steep grades. Depending where you live and what exactly you're hauling, you might not experience this issue. But, since you said you plan to mod some, get a V2 from TxChristipher and you'll never have to worry. Turbo coolant inlet pipe leaking need to re...
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