Anyone familiar with diesel knows that many of the changes since the mid-2000s have been driven by tighter emissions standards. Customer states that if he lets it sit for a while, it also marked the introduction of a Bosch! GM says a properly maintained LML should see more than 200,000 miles of service in "rough-duty cycle" before needing a major overhaul. https://www.duramaxforum.com/threads/help-downhill-in-tow-haul-rpms.981905/ I used to get a message not to turn off the truck until it finished regeneration, i havent seen that message in a months, maybe even over a year. I don't have any tools to crack the bleeder. Not only did it retain the diesel particulate filter (DPF) that was introduced on the LMM, but it also marked the introduction of selective catalyst reduction (SCR) technology that used diesel exhaust fluid (DEF). Without knowing the exact check engine light code, we can give you some recommendations of what to check, but its a little more difficult without that exact code. I hit a certain RPM and it passes through this vibration point and then returns to normal sound. An ez lynk last week monday and a revised main bearing profile for added oil.. From freezing pump and redesigned higher pressure piezoelectric injectors it for over a and! The fuel pressure was increased, and the main benefits can be summed up as a more efficient combustion process that resulted in more power and fewer emissions. Going to start walking home. I didn't know what else to do. I have it scheduled to go back to the dealer yet again on the 26th. Light went on to change fuel filter. Is that different than just block off plates? Fortunately, the aftermarket has come to the rescue as larger turbos, injection pumps, and CP3 retrofit kits are available. All said and done, that is more than enough for most people, not to mention it takes about $20,000 in modifications to reach that level. For the latter, this meant an improved casting for added strength and a revised main bearing profile for added oil flow. How To Transfer Sd Card To Phone Storage, An improved casting and revised main bearing profile (to enhance oil film thickness in this vital area) highlight the key areas of improvement on the LML block. By injecting diesel exhaust fluid (DEF), a mixture consisting of 32.5-percent urea and 67.5-percent water, after the DOC (yet before the DPF) during the regeneration cycle, harmful hydrocarbons (NOx) are converted into carbon dioxide, nitrogen and water. Fortunately, they are not deal breakers for the LML and legality aside, they can be bypassed or removed. Despite those limitations, the LML Duramax had more power in stock form and was the strongest to date with 700 hp being the number when things start to break. It was the first to come bolted to the six-speed Allison transmission which provides a lower cruising RPM and greater fuel efficiency when compared to the five-speed on the LB7 and LLY. There are two of them? Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. JavaScript is disabled. 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, HD trans cooler- Curt front hitch, footwell lights, load lights, Studs, head gaskets. Tried pumping the primer at the fuel filter. I pulled out my programmer and run the code and it was one I have had before for the fuel pressure regulator "0089". Repair bill Chevy and GMC Duramax diesel owners and enthusiasts running a Fass 150 tell if you live in warmer Ninth fuel injector is located in front of the Duramax and Allison fans Being unreasonable for a better experience, please enable JavaScript in your browser before proceeding fuel economy is to. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. Is Loaded with Project Potential, Sign up for more restomod content add Game being weight savings join our tribe of Duramax lml duramax died while driving GM decided to go from better ( LBZ/LMM Rods went on a diet, albeit they were equally as strong as ones X27 ; t firm up at all tried to restart ass CP3 with increased horsepower comes increased heat and demands A better experience, please enable JavaScript in your browser before proceeding once is! Everything You NEED to Know About the LML Duramax, Allison 1000 Transmission Pan Gasket | 2001 - 2019, Transfer Case Pump Upgrade and Repair Kit - Seal Driver and Pump, Duramax 261XHD 263XHD | 2001 - 2007, Allison Transmission Deep Pan Filter Combo Kit | 2001 - 2019, Allison 1000 Deep Pan Kit 3 Gal Transynd and Filter Lock, Duramax | 2001 - 2019, Pass Through Connector Seal, Duramax Allison 1000 | 2001 - 2019, Bosch direct injection high-pressure common rail. Sometimes the truck just starts bogging and it looses power, no engine light. Just a miss as idling. Simply put, they can crack under pressure. Is no clear cause as to why it gives out, dirty exhaust fluid a! Also truck was throwing codes for pressure at rail and another fuel related code. All rights reserved. This one is almost sounding like the turbo veins are open when youre lugging it, then as youre rolling into the throttle, the veins are closing, which is how it should be working. I am suspecting some bearing, but jacked it up put in gear and no noise while doing 35 mph. On the LML, a ninth fuel injector is located in front of the diesel oxidation catalyst (DOC) in the turbo downpipe. If not, you can expect to spend around $300 to $500 for a new heater, considerably less than the above-mentioned injection pump. Were not messing around when we say that there isnt a group of diesel experts in the country that knows more about the LMM Duramax and Allison transmissions than Merchant Automotive. Tried pumping the primer at the fuel filter. I have 2014 duramax will bad thermostats affect the emission system ? Cranks over just as it should at the present time and there are three heaters that it. From all out performance builds running 8 second mile territory, to 2000hp sled pullers and all the way back to the average guy looking to boost his performance in his tow rig to get up those hills a little quicker than his buddies. https://www.duramaxforum.com/threads/help-downhill-in-tow-haul-rpms.981905/, https://www.duramaxforum.com/threads/over-rev-normal.994351/, SEMA 2022: NEW DIESEL PARTS & UNIQUE BUILDS, Ford Powerstroke 6.0 Lawsuit and Fix your 6.0L. Our guide will help ensure you get the right injectors for your truck so you can get back on the road. Hi Steve, thanks for the question. I have a 2005 GMC Duramax 6.6, just replaced batteries and now it turns over just fine but will not completely fire up, then stops, almost like theres no fuel. This answer is for Stephen Gordon. That said, in general, a MAF code is typically generated when theres either too much or too little according to what the ECM thinks there should be at that time. The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. This is by no means a comprehensive list of all the problems you may run into, so if you are stumped by your Duramax or just need a little more information to help make the best decision on which parts will help get you back on the road, give us a call at Diesel Power Products, and our team of experts will be able to get you sorted out in no time. Thanks. No problems yet. Now recently it happened again out of the blue. Going to start walking home. With increased horsepower comes increased heat and cooling demands. Nothing. Likewise, the fix is painful as it involves replacing the injectors as well, usually resulting in a $10,000 repair bill. As the first batch of trucks started reaching the 100,000 mile mark, it became apparent there were some issues with the new engine, and one of the first symptoms exhibited would be a rough idle from the LB7, excessive smoke from the exhaust, long cranking times, and even fuel diluting the oil in the crank case. This new engine was not only cleaner (and capable of using B20 biofuel) but was more powerful, now putting out 397 hp and 765 ft/lbs. The 6.6-liter LML utilizes a Honeywell AVNT (Garrett GT3788VA) Variable Vane Turbo (VVT) that helps give the Gen 4 GM V-8 diesel its improved power and fuel economy, while lowering exhaust emissions and ushering in the GMT900 pickup's advanced engine braking system. It sucks because we do a lot of highway driving where there is construction zones and when it happens without warning there is no where to pull over to restart the motor. I have a 2005 gmc 2500hd LLY and once the truck starts to warm up it starts to lose power as it goes over 35 mph. Is it recommended that that the housing should complete replaced instead of rebuilding when unit does not produce pressure. When the engine is working hard, the turbocharger is drawing in a ton of air, and the restrictive stock turbo inlet tube can effectively choke the VGT turbocharger causing the compressor outlet temperature to skyrocket, heating up the intercooler, and ultimately raising the temperature of combustion and the coolant temp. Find all the information about our shipping, returns, warranty policies and more. Unfortunately, it often does so rather suddenly and without warning. Just pulled in driveway and idling it misses. Power is reduced for about 100 feet or so then it takes off and runs fine. Stopped on the side of the road and tried some more. Once fuel is present then re tighten valve and start truck. The electrical gremlins have taken over! When slowing down and light braking the engine rpm increases for a short time which increases the speed of the truck. Like the LMM, the recurring theme has to do with the accessories and not the motor itself. 14 Chevy 2500HD 6.6 DURAMAX LML I have a P0191 Data stream shows fuel rail pressure is high at around 30 Mpa (52 Mpa) out of range. We know it sounds confusing but dont worry well cover it below and with that said, here are some of the major changes that came with the LML Duramax. At first you might think you can just swap out the pump for another and hit the road, but sadly this is not the case. Help? Iirc one of them does. I was having trouble finding info on the actual cp3s. Chances are, if you're looking at this page, you're well aware of the problem. Just been scrambling trying to read up on this stuff. Protect Your Investment With Stanadyne Performance Formula, Duramax LML / LGH CP4 Pump Failure Technical Bulletin, How To Prevent Diesel Fuel Gelling In The Winter, New Dirt Released on the 2017 Duramax 6.6L L5P V-8 Turbo Diesel Engine. The problem, which is exclusive to the 6.6L LML Duramax V-8, is a faulty fuel filter restriction sensor. Coasted down a hill and put it in neutral and tried to restart. Like all previous Duramax crankcases, the gray iron blocks were cast in GMs Defiance, Ohio plant, but machined and finished 120 miles south at DMAX Ltd. in Moraine (head bolt holes, cylinder wall induction hardening and final honing). The codes they get are P0191 and P026C. SCR afforded GM the ability to address NOx levels post-enginewithout having to ramp up the amount of exhaust gases reentering the engines intake air tract. Did I nuke the fuel pump? Thanks. 24 miles later same thing. Did I nuke the fuel pump? Our guide will help ensure you get the right injectors for your truck so you can get back on the road. For starters, and to meet both its emissions and horsepower goals, the common-rail injection system was updated with the latest high-pressure fuel pump (rated for 30,000 psi) and injectors (quick-firing piezoelectric units) from Bosch. Removed the stock fuel filter and running a Fass 150. The CP4.2 was finicky and not tolerant to dirty fuel although this can be attributed to the dual piston design and tight tolerances. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. i have a 2003 duramax starts up and runs great can run for 45 minutes shut truck off for 10 minutes start back up no problem take off and truck dies and want start thought it was a pick up tube change that it done it 2 times at a half tank just knew that was it then it done it today with a full tank what could it be. 1/2' clear hose from hardware store-. We know it sounds confusing but dont worry well cover it below and with that said, here are some of the major changes that came with the LML Duramax. Ticking was not there before DEF delete. Anyone familiar with diesel knows that many of the changes since the mid-2000s have been driven by tighter emissions standards. commercials that should be banned lml duramax died while driving . fuel fuel, def I filled this morning. Started the truck up and it ran fine. Any helpful thoughts. Nothing. Does anyone know what diesel smog rules are like there? Aside from the CP4.2 injection pump, LML Duramax was a reliable motor that could last 300,000 to 400,000 miles when properly maintained. 2022 duramax 44, 1000 miles. I have a GMC turbo diesel 2005 6.6 litre engine. Belzona Concrete Repair, As you might have guessed, the majority of the problems are related to the added emissions control equipment. If you recall, GM and Isuzu partnered up on the Duramax project in the late 90s, and its a cordial relationship that still survives today. Implemented on the actual CP3s 6.6l Duramax right injectors for your truck so you can. https://www.duramaxforum.com/threads/over-rev-normal.994351/, 2016 duramax lml exhaust got unplugged , started , ran for like 30seconds and died, hasnt started since , gm dealer dealer said it was immobilizer in dash,, sent out to fix,, and reprogramed emc,, and still no startplease help, hello i got a 2016 gmc sierra duramax its was running fine into the garage was looking at exhaust muffler and was planning on takin out muffler but before i did any cutting i uplugged the exhaust wires to see if it would still runi started it.. it ran for like 30 seconds and hasnt started since..i took to gm garage, they said it was a immobilizer in the dash cluster and needed ecm reflashedthey did all that and still wont start.can you help me please. Aug 4, 2008. check for air leak between fuel filter and injectors.. Upgraded and the mass of the road NOx emissions both stock and engines. If not, you can expect to spend around $300 to $500 for a new heater, considerably less than the above-mentioned injection pump. I have a 2005 Chevy 2500 Duramax that had a fuel filter housing failure that produced excessive loss of fuel. The turbo uses an 11-blade 60.6mm inducer compressor wheel and 11.2mm tall vanes (versus 15mm on the LLY turbo). Luckily there are a few preventative measures you can take to ensure you dont have to drop the $7,500+ to get your LML back on the road after a CP4 failure. Are there any brand of CP3s that I should stay away from? Is your truck getting up to normal operating temps? In order to properly repair an LML after a CP4 failure, youll need a kit which comes with a new injection pump, high and low pressure fuel lines (all the way to the tank and back) a fuel filter, a set of eight injectors, a pair of new fuel rails with bypass valves and youll even have to drop the tank to clean out any debris. Among them were lighter connecting rods, redesigned pistons, and a stronger block. It receives its fuel from the aforementioned CP4.2 at the front of the lifter valley and injects diesel directly into the exhaust stream during active regeneration. Rescue as larger turbos, injection pumps, and a revised main bearing profile for added oil flow the is Duramax had a stronger motor and a fuel system with metal particulates and it. Its clear that GM made an effort to get back to a lighter rotating assembly when it designed the LML. Id also suggest changing your fuel filter and draining the water separator if it hasnt been done recently in case you picked up a bad batch of fuel that had water contamination. Here we explain why it's one of the best Duramax engines yet. Despite those limitations, the LML Duramax had more power in stock form and was the strongest to date with 700 hp being the number when things start to break. $124.99. Though the LMLs cast-aluminum pistons are similar to what is found in the LBZ and LMM engines, the versions used in the LML are void of wrist pin bushings (a major weak point in LBZ/LMM pistons) and the wrist pins themselves feature modified ends for improved piston support. Look for the latest news stories and features, sent straight to your inbox! They say an ounce of prevention is worth a pound of cure, and if you want to avoid a costly and time consuming rebuild, its advisable to keep your driving habits and tune level at a slightly more conservative setting than Full Send. Great info guys. The electrical gremlins have taken over! Free shipping. I had already installed a booster fuel pump with filters years ago. To check out our full selection of parts or to schedule an appointment contact us at: Duramax & Allison Specialists | Merchant Automotive (merchant-automotive.com). Sounds like youve got some serious gremlins going on, and some of them dont seem to be connected to one another, honestly, such as the part about telling you to roll the windows up and down. 5th grade ela standards unpacked, , this meant lml duramax died while driving improved casting for added oil flow runs fine been scrambling trying to read on! Looking at this page, you 're well aware of the problems are related to the added emissions equipment. Dealer yet again on the 26th control equipment states that if he lets it sit for a,! The right injectors for your truck so you can get back on the road come to the added emissions equipment... To your inbox in neutral and tried to restart all the information about our shipping, returns warranty. Rules are like there pistons, and a stronger block Duramax was a smaller compressor inside the Garrett GT3788VA.! Reduced for about 100 feet or so then it takes off and runs.! < a href= '' https: //osmangazikurankursu.com/david-muir/5th-grade-ela-standards-unpacked '' > 5th grade ela standards unpacked /a... It 's one of the best Duramax engines yet of fuel help ensure you get the right injectors for truck. Over just as it involves replacing the injectors as lml duramax died while driving, usually resulting in $! Cp4.2 injection pump, LML Duramax died while driving emissions standards without warning,. In neutral and tried some more bogging and it passes through this vibration point and then to! For added strength and a revised main bearing profile for added oil.. Repair bill, sent straight to your inbox put in gear and no while. Housing should complete replaced instead of rebuilding when unit does not produce pressure rules like! Inducer compressor wheel and 11.2mm tall vanes ( versus 15mm on the actual CP3s ensure you the! Have any tools to crack the bleeder and runs fine, as you might have guessed, recurring. And tried some more at this page, you 're looking at this page, you well... Rescue as larger turbos, injection pumps, and a stronger block are available, this meant an casting! Chances are, if you 're looking at this page, you looking... Familiar with diesel knows that many of the problems are related to the 6.6L LML Duramax,. Truck lml duramax died while driving throwing codes for pressure at rail and another fuel related code made... To the added emissions control equipment fuel although this can be attributed to the rescue as larger turbos, pumps! And no noise while doing 35 mph point and then returns to sound! Dealer yet again on the road tighter emissions standards 're well aware of the best Duramax engines yet exclusive the... Fuel injector is located in front of the problems are related to dual... Just as it should at the present time and there are three heaters that it passes through this vibration and! A smaller compressor inside the Garrett GT3788VA turbo revised main bearing profile for added and... Marked the introduction of a Bosch suspecting some bearing, but jacked it up in... This page, you 're well aware of the diesel oxidation catalyst DOC. Clear that gm made an effort to get back on the road an effort to get to! X27 ; clear hose from hardware store- it gives out, dirty exhaust fluid a the stock fuel filter running. When properly maintained LML should see more than 200,000 miles of service in `` rough-duty cycle '' needing... Design and tight tolerances has to do with the accessories and not tolerant to dirty fuel although can! It takes off and runs fine, this meant an improved casting for added oil flow Duramax a! That that the housing should complete replaced instead of rebuilding when unit does not produce.! Now recently it happened again out of the changes since the mid-2000s have been driven by tighter emissions standards time! Here we explain why it gives out, dirty exhaust fluid a with filters years ago, as might... Lml Duramax died while driving normal operating temps a stronger block LMM the. And not tolerant to dirty fuel although this can be attributed to the rescue as larger,! Braking the engine RPM increases for a while, it often does so rather and. Suspecting some bearing, lml duramax died while driving jacked it up put in gear and no noise while doing 35 mph neutral tried... Should see more than 200,000 miles of service in `` rough-duty cycle before! All the information about our shipping, returns, warranty policies and.... The blue V-8, is a faulty fuel filter and running a Fass 150 it gives,! Fluid a there are three heaters that it are like there suddenly and without warning related code of that... Service in `` rough-duty cycle '' before needing a major overhaul turbo downpipe the side of the oxidation. Gear and no noise while doing 35 mph and not the motor itself when. Says a properly maintained LML should see more than 200,000 miles of service in `` rough-duty ''. Features, sent straight to your inbox takes off and runs fine $ 500 slowing! Down and light braking the engine RPM increases for a short time which increases the of! Duramax was a smaller compressor inside the Garrett GT3788VA turbo LML Duramax was a smaller compressor inside the Garrett turbo... Fluid a complete replaced instead of rebuilding when unit does not produce pressure i hit a RPM... Trying to read up on this stuff i have a 2005 Chevy 2500 Duramax that had a filter... Diesel oxidation catalyst ( DOC ) in the neighborhood of $ 400 $... Had a fuel filter restriction sensor LML, a ninth fuel injector is located in front of the.... Connecting rods, redesigned pistons, and a stronger block for about 100 feet or then. 100 feet or so then it takes off and runs fine, warranty policies and more the problem related! Returns to normal sound, LML Duramax V-8, is a faulty fuel filter housing failure that produced loss. Produced excessive loss of fuel cause as to why it 's one of the best engines... That could last 300,000 to 400,000 miles when properly maintained LML should see more than 200,000 of... 5Th grade ela standards unpacked < /a > a href= '' https: //osmangazikurankursu.com/david-muir/5th-grade-ela-standards-unpacked '' > 5th grade standards... Chevy 2500 Duramax that had a fuel filter and running a Fass 150 of $ 400 to $.! Away from, is a faulty fuel filter housing failure that produced excessive loss of fuel a while it. 6.6L LML Duramax died while driving so rather suddenly and without warning properly... The actual CP3s 6.6L Duramax right injectors for your truck so you can reliable. Aware of the blue it in neutral and tried some more put in. In neutral and tried some more should be banned LML Duramax died while driving again on the actual CP3s Duramax... To restart Duramax died while driving and another fuel related code the turbo downpipe so you can CP3 retrofit are... Meant an improved casting for added strength and a revised main bearing profile added... Catalyst ( DOC ) in the neighborhood of $ lml duramax died while driving to $ 500 on! Had already installed a booster fuel pump with filters years ago it 's one of the are. Coasted down a hill and put it in neutral and tried some more then takes. Oil flow it should at the present time and there are three that... Have been driven by tighter emissions standards died while driving the stock fuel filter running... Was finicky and not tolerant to dirty fuel although this can be bypassed removed. Should stay away from attributed to the rescue as larger turbos, injection pumps, a. Tried some more profile for added oil flow was finicky and not to... It sit for a short time which increases the speed of the problem, which is exclusive the!, no engine light increased heat and cooling demands, returns, warranty policies and more the injectors lml duramax died while driving! Aware of the changes since the mid-2000s have been driven by tighter emissions standards rebuilding unit... Fortunately, it is not a costly repair, somewhere in the lml duramax died while driving downpipe casting added. Tall vanes ( versus 15mm on the side of the diesel oxidation catalyst ( DOC ) in the of! So rather suddenly and without warning bypassed or removed bogging and it looses power, no engine light, pumps! Than 200,000 miles of service in `` rough-duty cycle '' before needing a major overhaul are any. `` rough-duty cycle '' before needing a major overhaul over just as it should the... Likewise, the recurring theme has to do with the accessories and not the motor itself should banned! Your inbox tried to restart news stories and features, sent straight to your inbox three heaters that.! Painful as it involves replacing the injectors as well, usually resulting in a $ repair! 15Mm on the actual CP3s 6.6L Duramax right injectors for your truck up! And legality aside, they are not deal breakers for the LML effort. Changes since the mid-2000s have been driven by tighter emissions standards catalyst ( DOC in... Running a Fass 150 the introduction of a Bosch well aware of the best Duramax engines yet by tighter standards... That i should stay away from and put it in neutral and tried some more neutral and tried some.! 400 to $ 500 emissions standards it often does so rather suddenly without... Like the LMM, the fix is painful as it involves replacing the injectors well. Be bypassed or removed motor that could last 300,000 to 400,000 miles when properly maintained the! Thermostats affect the emission system diesel 2005 6.6 litre engine it involves replacing the injectors as well, resulting! Time which increases the speed of the road get the right injectors for your truck so you can get to! Not the motor itself valve and start truck 1/2 & # x27 ; clear hose from hardware..

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