Jun 30, 2023. #13. References voltages (like the 5V reference supplied to 3 wire sensors) are supposed to be regulated to almost that exact voltage by the ECM. I would check with the engine running and see what voltage you get vs just key on. A battery voltage of 12.18 is a low battery, about 50-60% charged.The basic economic problem is scarcity, which is the idea that human beings want more things than are available to them. The economic problem, also known as the central economic pr...Duramax L5P Engine Problems. MAP Sensor Failure. Allison 1000 Transmission. Fuel Injector Failure (#4 Injector) Finding 3 problems with the L5P was difficult. While these engines are still relatively new, they seem to be extremely reliable so far with very few "common" problems that haven't been solved or addressed.Find the latest Eli Lilly and Company (LLY) stock discussion in Yahoo Finance's forum. Share your opinion and gain insight from other stock traders and investors.2004.5 Silverado 3500 SRW 4x4, D/A (LLY), Ext. Cab, Long Bed [-]TxC V2 aux radiator w/Fan (leaked after 12 yrs[/-] ), 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.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, ...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.GMC C5500: 6.6L (LLY) fuel injection problems. I have a 2004 GMC C5500 with a 6.6L Duramax ( engine code 2 - LLY). The other day the it started running poorly with a check engine code (Misfire cylinder #2). I found a bad connection at the injector and replaced and fixed the drivability issues.1 post · Joined 2014. #1 · Oct 3, 2014. 01 LB7, only non stock is air intake.I was pulling an average size boat when I got a check engine light and lost power. I could ease it up to 50 mph but if I pushed it then back down to no power. Pulled into a parts store,changed fuel filter and they analyzed it. Said it was the fuel pressure regulator.2004 LLY Problem. Jump to Latest Follow 41 - 51 of 51 Posts. 1 2 3. M. mtl_dmax · Registered ... 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, ...Remove the turbo 'mouthpiece'. Remove the intake downpipe that has the two O-Rings. Pull the fuel line, that is in the way, up and wire tire it out of the way - no disconnection needed for it. Plug turbo inlet and intake inlet. Clean the FPR with any good cleaner - brake clean or electronics cleaner and blow dry.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 ...Fuel Rail Pressure @ 157,840kPa. MZemo. Nov 15, 2023. 51. 3K. Nov 22, 2023. by Mikes2019HDDuramax. 1 1 of 561 561. Discuss the second generation (2004.5-2005 LLY) of the 6.6L Duramax diesel engine & associated components. 2006 LLY engine discussion belongs in Third...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.cherokeechief. 441 posts · Joined 2010. #4 · Jan 18, 2013. the abs module is a 2 piece unit. the metal block is the valves and ports, and then you have the electronic section. it does separate. the solenoids are in the electronic section, and the valves are in the metal block. could be the electronic section. if it was a valve you could have ...Other Duramax LLY problems included the following: Head gasket failure. Injector harness chafing. Water pump failure. EGR valve issues. Glow plug failure. Fuel …It's fine. I add a half gallon every 20-30k. My hose stays hard every once in a blue moon too. If it aint smoking white and blowing coolant out the overflow, I wouldnt worry about it. 06 LBZ EC/LB 4x4. Built Motor/Trans • Bullseye s475/87/.9 • 45% Injectors • Stock CP3 • Built and Tuned by Blackout Performance • 11.76 @ 115 SOLD.It's fine. I add a half gallon every 20-30k. My hose stays hard every once in a blue moon too. If it aint smoking white and blowing coolant out the overflow, I wouldnt worry about it. 06 LBZ EC/LB 4x4. Built Motor/Trans • Bullseye s475/87/.9 • 45% Injectors • Stock CP3 • Built and Tuned by Blackout Performance • 11.76 @ 115 SOLD.Instrument cluster is Dead. The DIC sometimes comes on, but its all of the LED's that come on. Gauge do not sweep. The glow plug light, check engine light, and other lights come on, but nothing in the "logic" of the dash works. I have had the stepper motors replaced, but nothing is working so I don't think that is the issue.Step 6. Manufacturers often fix the EGR inlet with 6 bolts at 4 corners and two diagonal edges. If you want to work with EGR, you must first remove all the fixed points. After all 6 bolts have been removed, accessing the hose clamp on the turbocharger is extremely easy.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.DEDMAX6904 Discussion starter. 152 posts · Joined 2009. #1 · Feb 24, 2014. Looking for the Part number for the coolant by pass valve near the turbo. From some reading I have seen you will get cooler operating temps if the valve gets stuck open. My truck used to operate closer to the 200-210 mark, I thought it was only operating cooler because ...13 posts · Joined 2012. #1 · Jun 21, 2013. 2001 2500HD Sierra w/6.6L Duramax diesel. Sometimes, not often, once a month or so my truck at start up won't fire, just turns over. I have to go under the hood and pump up my diesel fuel system - located on the passenger side of the engine. After 6-10 pumps its firm and she fires right up.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.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.The LLY, manufactured from 2004 to 2005, uses a fuel system that is particularly vulnerable to water infiltration. If you encounter a WIF alert, it's important to take immediate action, as water in the diesel can cause severe issues like corrosion and decreased lubrication. Common Problems in Duramax Fuel SystemDealer 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 ...Jun 18, 2023 · One of the most common lly duramax problems is the injector harness rub, which can cause rough idling or even stall the engine. Another frequent issue is the fuel injectors, and a failing ficm can also cause problems. Improper fuel pressure can lead to hard starts, misfires, and decreased fuel economy. Proper diagnosis is crucial to addressing ...Come along with Eric O. when he steps out side of his comfort zone in this multi part series and has a look at this 2005 GMC 4500 with the LLY Duramax Diesel...Hi every one, I have a question, my dad has a 2005 LLY duramax 225,xxx miles, it is currently having lag/dead pedal problems. There are no codes it makes good boost, has good fuel presser, and drives good, it just will not get going from a stop half the time, the other half the time It will get up and go like it you would expects from a stoke LLY.there is issues with the LB7's, most of them are tuned but they also have less cyl pressure than the LLY. 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 CC/SB-Big Dipper trans, built front end, some softy tunes, 35's, garage queen. Rig ride ...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.Having problems with my LLY. Has 197xxx on it. Was having the usual problems where the truck would run like a tractor and practically stall out, ice picked all the connections and it got better. Now I have the problem only when I'm sitting in traffic and from there on out. Struggles to pull up hills and runs like junk.The All Season bridge is one to check out too... It's nice and fits really well. LBZ-LMM Super Hi Flow Intake Bridge - $439.00 : All Season Diesel Performance, Your Duramax diesel performance headquarters by Tony Burkhard owner of the Dirty Hooker. This is the one for the LLY from All Season: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 ...LLY . 1; 2; Next. 1 of 2 Go to page. Go. Next Last. P. PressPause New member. Apr 30, 2022 8 0 1. Apr 30, 2022 #1 Alrighty here goes nothing… My idle fuel pressure is at 9,000 psi I have tried commanding it higher or lower with my tech 2 to no avail. ... Anyways the problem was the FPR… with the FPR pulled out I noticed when plugged in with ...Are you having trouble with your Fitbit? Whether it’s not syncing, not tracking your steps, or just not working properly, we’ve got you covered. This guide will walk you through th...Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Duramax Powertrain. Transmission/Transfer Case Problems/Diagnosis. Jump to Latest Follow ... and no problem. Two weeks ago loaded up 8K# Horse Trailer (half the height but twice the weight) and the fun began. On the flats of Illinois, noticed my Fuel Pressure would not get above 10K PSI.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 ...step by step of my LLY problem. Jump to Latest Follow 9K views 23 replies 8 participants last post by battlegraduate09 Apr 28, 2012. battlegraduate09 Discussion starter 7344 posts · Joined 2010 Add to quote; Only show this user #1 · Apr 17, 2012. ok last july i had an electrical problem come up. ...New person here and I have a 2004.5 lly and started having limp mode problems while towing my RV then took to a shop after that happening twice had 5th gear solenoid and internal harness replaced then truck seemed to be fine till 2days ago when it went back into limp mode for 3rd time and 4th time today. After the parts where installed any help ...Overheating, Headgaskets, Limp Mode, Injectors, Air intake, EGR, Thermostats, Cluster, Hydroboost. 2004.5-2005 LLY duramax diesel16. Jan 8, 2011. #1. Hey guys and gals, Working on an 05' lly...The balance rate on Cyl. #3 was 15. Replaced the injector and this is the result. No change, however the truck does run better. No smoke, just a slight "lope" at idle. When I say cylinder 3, that is passenger side, second in looking from the front.2006 2500HD LLY - Replaced Hydro Boost - Brake Light Switch - P0504 Issues. 2006 2500HD Duramax LLY 184,000 Miles - I was having a problem with a bad steering fluid leak and initially changed all 4 hoses which helped but did not completely fix the issue. Inspected and found that the Hydro Boost was leaking between it and the Brake master ...The Duramax LLY engine suffers from problems with bent rods, blown head gaskets, EGR valve failure, glow plug failure, overheating, and fuel pressure relief valve failure. Duramax LLY Reliability Ultimately, despite the common problems we are going to discuss in-depth below, the LLY is still a very reliable engine and has proven capable of ...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 ...LLY Cold Start Issues. I am having issues with my 2004 LLY duramax. Only mods are 5" exhaust, intake, EGR delete, FASS, ARP studs and gaskets. (took the chip out to cross that off my list of possible issues) I recently replaced 2 glow plugs and the glow plug controller due to a couple codes. There is no longer any codes in the truck.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.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 ...Novo Nordisk's Ozempic slowed the worsening of kidney dysfunction in patients with type 2 diabetes and lowered the risk of kidney failure, heart problems, stroke and death, according to detailed ...Hey guys im hoping you guys can help me out with my problem, I have an 04.5 lly that for some reason is building excessive pressure in the cooling system. from a cold start to less then 60 seconds of running will build ... Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep pan, de-badged, 65 ...16. Jan 8, 2011. #1. Hey guys and gals, Working on an 05' lly...The balance rate on Cyl. #3 was 15. Replaced the injector and this is the result. No change, however the truck does run better. No smoke, just a slight "lope" at idle. When I say cylinder 3, that is passenger side, second in looking from the front.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 ...Ron Nielson. 10775 posts · Joined 2009. #4 · Jan 24, 2023. Please share your document showing the EDU being powered by the TCM. Ron Nielson - Most of the information I provide relates directly to my 2008 LMM - Your truck may be a little (or a lot) different. 2008 Silverado LT, Crew Cab, 2WD,LB.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.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.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.Sep 12, 2023. #1. Put in a new HO alternator in the Sierra about a year ago, not long after I upgraded to dual e-fans. Since then, I replaced the fan harness (the 'new' new one is fine), and up until today, my charging system was fine. Today, I started the truck, had the (bus) issue where the radio doesn't output sound, and shut it off.ChevyTech77. 6889 posts · Joined 2015. #6 · Aug 12, 2021. I agree, stock LBZ, doesn't get much better. An LMM is basically an LBZ with a DPF in the exhaust. Other than injector issues, an LB7 would be next on my list. Some people have good luck with LLYs but most seem to be problematic. 2006 Silverado 2500 4x4. LBZ.#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 …Step 6. Manufacturers often fix the EGR inlet with 6 bolts at 4 corners and two diagonal edges. If you want to work with EGR, you must first remove all the fixed points. After all 6 bolts have been removed, accessing the hose clamp on the turbocharger is extremely easy.Jun 23, 2020 · How often you should service your 6.6L LLY Duramax is going to depend on how much you use it, and what you use it for. Excessive idling, heavy towing, or off-roading will result in the need to perform service more regularly. You should follow the severe service schedule. If you tow mostly light loads or use the truck for mostly commuting, you ...I did use a felpro gasket on the black tube with two 12mm studs that runs under the driver side head. We thought it fixed the issue, and it did fix 95% of my leak. Yet now I have a small leak which seems to be coming from the area that black tube that runs under the driver side exaust manifold. I think my head gaskets are fine bc the upper rad ...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 P0046, P0700, and P2563. ... Including turbo problems. It was one simple fix, EFI LIVE! It is amazing. All my problems was bad tuning. 2005 Chevy Duramax LLY. 2500 LT. Save …May 24 (Reuters) - Eli Lilly (LLY.N) said on Friday it has invested another $5.3 billion in its new Lebanon, Indiana manufacturing plant, more than doubling its previous …The LML was the biggest overhaul Duramax had done to the 6.6L diesel, using 60% new parts. It received major changes to the block, rod, pistons, emissions equipment and fueling system.. The big engine changes to the block and internal components led to a stronger and more durable engine, but the new fueling system and emissions equipment plagued the LML with problems.Dec 28, 2011 · The 04.5 LLY and 05 LLY are known to have an extremely restrictive factory turbo inlet mouthpiece and most owners upgrade this piece. If you do an intake upgrade, don't leave the stock mouthpiece on the turbo. Clean your engine bay and keep an eye on your intercooler, boots, and clamps.step by step of my LLY problem. Jump to Latest Follow 9K views 23 replies 8 participants last post by battlegraduate09 Apr 28, 2012. battlegraduate09 Discussion starter 7344 posts · Joined 2010 Add to quote; Only show this user #1 · Apr 17, 2012. ok last july i had an electrical problem come up. ...The fuel pressure relief valve - also known as the fuel pressure regulator on a common rail diesel engine - can become a weak link on a performance-tuned Dur...Oct 2, 2017. #2. You should have your batteries load tested. The alternators will have a hard time holding a steady voltage with weak batteries. Mine did the same thing for more than a year. Always cranked up and started fine. Replaced the batteries and now it hold a steady voltage even with some good loads on it.Instrument cluster is Dead. The DIC sometimes comes on, but its all of the LED's that come on. Gauge do not sweep. The glow plug light, check engine light, and other lights come on, but nothing in the "logic" of the dash works. I have had the stepper motors replaced, but nothing is working so I don't think that is the issue.Sep 6, 2022 · Now, the LLY has a catalytic converter in most models. Upgrading the downpipe + getting a 4″ catback will run you around $600. If your truck doesn’t have, or doesn’t require, a catalytic converter, then the LB7 exhaust is a direct bolt-on and is turbo-back for only $399 which would be the best option and cheapest. Price: $419.99.05 lly cant figure out my problem! I was driving down the highway 65 70mph while towing my sxs and hit fuel limp mode nothing over 2000 rpm, I was about an hr and a half away from home so I just kept going. About 20 min from home truck completely shuts down as if someone just turned the key off, will not re restart, has no prime at fuel filter ...How often you should service your 6.6L LLY Duramax is going to depend on how much you use it, and what you use it for. Excessive idling, heavy towing, or off-roading will result in the need to perform service more regularly. You should follow the severe service schedule. If you tow mostly light loads or use the truck for mostly commuting, you ...cherokeechief. 441 posts · Joined 2010. #4 · Jan 18, 2013. the abs module is a 2 piece unit. the metal block is the valves and ports, and then you have the electronic section. it does separate. the solenoids are in the electronic section, and the valves are in the metal block. could be the electronic section. if it was a valve you could have ...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. Chevy 04.5 LLY, 2X, shell, XDR, MikeL Heavy duty up-grade, 6spd, TransGo, deep ...Pushing coolant thru overflow. Ok I'm new to this forum but I have a 07 Chevy duramax lbz classic body style. I can be just driving it and it's random sometimes it does it the day after I add coolant or week later. I can be driving it and stop somewhere and leave the truck running when I left the truck temp was 210, I get back in and it's ...The basic economic problem is scarcity, which is the idea that human beings want more things than are available to them. The economic problem, also known as the central economic pr...17 posts · Joined 2012. #17 · Jun 2, 2012. I thought only the lbz's and newer had pilot injection not the llys or lb7s. 2005 lly Dmax CC SB...egr delete, 4 in mbrp straight pipe, more mods soon to come. 1950 Oliver 77 Row Crop...m&w pistons, fully restored. Sold: 1986 Chevy K20 4x4 6.2 diesel.Jun 10, 2013 · 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, Redhead Power Steering Box w/ Amsoil PS fluid, Green Torsion Keys, Allison Deep Pan w/ Suncoast Filterlock and Transynd ATF, Bilstein ...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, ... The other problem is the FICM harness-- It is secured at the side of the alternator with a Zip tie. Cut the tie and pull the wires out. inspect carefully.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.Jun 27, 2012 · Remove the turbo 'mouthpiece'. Remove the intake downpipe that has the two O-Rings. Pull the fuel line, that is in the way, up and wire tire it out of the way - no disconnection needed for it. Plug turbo inlet and intake inlet. Clean the FPR with any good cleaner - brake clean or electronics cleaner and blow dry.In this video, Zach covers the background, specs, common problems, and reli, May 31, 2012 · 17 posts · Joined 2012. #17 · Jun 2, 2012. I thought only, The sharp corner of the FICM bracket cuts into the wire loom and the wires. Cut the zip tie an, Jun 4, 2009 · 05silverado Discussion starter. 97 posts · Joined 2009. #1 · Jun 4, 2009. It, 16. Reaction score. 1. May 16, 2008. #13. The LLY has an injector, 2. CP4 Failure. This one is specific to the LML code Duramax produced between ’11, If you think a loved one has a drinking problem, you may, The AC compressor will kick in for approximately 3 seconds , 2. Press the accelerator pedal to the floor and hold while quickly p, To sum up, "LLY" is an acronym that stands fo, Realistic-Sands. • 4 mo. ago. If you search the Subred, rick33 Discussion starter. 25 posts · Joined 2012. #1 · Nov 13, Check Chevy GM Duramax Diesel LLY Fuel Injection Control, DEDMAX6904 Discussion starter. 152 posts · Joined 2009. #1 · , The injectors are a notorious problem on the LLY, espe, Dec 5, 2018 · Of the first five generations of the D, Duramax LLY Cold Air Intake Benefits. +5-15 horsepower. +10-2, Chevy / GMC Duramax 04.5-05 LLY Forum. 04.5-05 LLY Dur.