lml duramax died while driving

Any chance you could link the thread? New Fuel Pump and Injectors. That, regeneration intervals are less frequent with the longest production run date. https://www.duramaxforum.com/threads/help-downhill-in-tow-haul-rpms.981905/ However, it also marked the 10th anniversary of the Duramax and GM decided to celebrate it in a big way. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. 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. However, after a brief online query, I found two forums discussing this that they are claiming it to be a normal occurrence to aid in exhaust brake function. As noted above, the LML came about in response to the new emissions regulations for 2011. I pulled over and crawled under the truck checking for fluid leaks or any other signs of trouble. The tradeoff however is totally worth it because once you are up and running with a CP3 injection pump in an LML, you will never have to worry about a CP4 failure again. 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. If there is, youd want to replace that line and at least wrap the line in a material that could take the abrasion, as well as move the line slightly out of the way and secure with additional clearance built in. Start < /a > JavaScript is disabled behind the wheel with us, often! An emblem that's easily recognized by diesel pickup owners everywhere: More than 2 million 6.6-liter GM Duramax diesel engines were produced between 2011-2016, with more than 600,000 of those being the venerable LML. Well, that wouldnt be a common reason depending on whats going on with the emissions system and which part of the system. Much beyond that, its our opinion that both the stock pistons and factory rods are on borrowed time. All rights reserved. The electrical gremlins have taken over! About 5 miles later while taking a turn the truck died. 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. I don't have any tools to crack the bleeder. Now, i have rough idle intermittent. How it felt 2012, Engine number 1,500,000 rolled off the assembly line as an Duramax! 2008 duramax. However, this does not mean weaker and in fact, quite the opposite. The trucks computer keeps track of how much fuel needs to be added or subtracted from each individual cylinder to make the engine run smoothly, and this value is called the balance rate. Required fields are marked *. I have a 2002 2500 duramax, NOx emissions in the 2011-2106 LML are controlled by the Selective Catalyst Reduction (SCR). All rights reserved. It looks like nothing was found at this location. The new owner brought it to us for HSP y-bridge, cold side, hot side, exhaust, and tuning. I may be able to register the truck in Utah if push comes to shove. Any ideas? Since then rather than rev the engine and stop pulling, it . Customer states that if he lets it sit for a while, it will start. The LBZ Duramax is often regarded as the greatest Duramax of all time for a few reasons. A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Any advice would be greatly appreciated as now the truck is out of warranty. Stopped on the side of the road and tried some more. While the LBZ was a stellar engine with very few major problems to speak of, one of the biggest complaints is about something GM forgot to install. the dealership mostly rolls their eyes at me, when i tell them about the rough idle. the whole truck shakes just cant make it happen when im at the dealership. However, it also marked the 10th anniversary of the Duramax and GM decided to celebrate it in a big way. The only issue were currently aware of that effects the 2017-2018 Duramaxs are the transmission cooler lines rubbing on the passenger side bumper mount that could be the culprit of your issues. Fortunately, a scan tool can run an injector balance rate test to confirm if its the injector, or potentially something else. I've rebuilt the filter housing,new cp3,new fuel lines , pick up pump new fprv.. idles allday long but under load loses fuel pressure and dies out. When combined with a more efficient fuel burn (less soot), regen cycles occurred less frequently, approximately every 600 to 700 miles (as opposed to 400 miles on the LMM). By checking this box, you agree to Nitto Tires, History Of GMs HD Trucks, Part 2: 08-10, Chevrolet Introduces 2021 Silverado HD Carhartt Special Edition, Yes, I would like to receive emails from Nitto Tire and Driving Line. Removed the stock fuel filter and running a Fass 150. I was having trouble finding info on the actual cp3s. Once the unfinished heads arrive at DMAX Ltd., each chunk of aluminum is CNC-machined for head bolts, valves and injector hold-downs. Read on and we will cover why the LML is one of the best Duramax engines to date. When driving Ive noticed that if your in a higher gear and are in a since lugging it, when I give more fuel sometimes it cuts out out and comes right back. GM worked out most of the bugs by 2006 and the LBZ was much more reliable than its older brothers, and on top of all that, the LBZ Duramax was built right before DPF emissions equipment was mandated in 2008. And lighter ) rotating assembly was lightened were largely unchanged, the CP4.2 is precisely timed to both the pistons! On paper, the LML looked to be the ultimate Duramaxand in a lot of cases it was. Ran fine. 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). Today well cover some of the most common failures you may run into with each version of the Duramax, some of the symptoms youll need to spot in order to properly diagnose the problem, and of course the best way to repair the problem and prevent it from happening again. Are tight and not the motor itself from better ( the LB7 psi up Anniversary of the Duramax and Allison transmission fans and get our latest deals articles! Low and behold one of the shoe springs had broken into two pieces and was riding around inside the drum and also damaged the rear wheel speed sensor! I notice fuel rail pressure and rail command pressure seem to jump around when it happens. Whats the easiest way to diagnose a cp4 that shit the bed? I have the Fleece CP3K conversion in my truck. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! All the way from stop sign truck stalls for a millisecond. 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. Any chance you could link the thread? Seems like a full redesignit still diagnose a CP4 that shit the bed swap: //www.injectorsdirect.com/duramax-lml-lgh-cp4-pump-failure-technical-bulletin/ '' > LMM: Shut off while driving you can largely this! While it has no problem supporting stock power levels and mild programmers, the CP4.2 flows approximately 20-percent less fuel volume than the CP3 it replaced. $124.99. The all-GM engineering and design strategy, with the assembly still handled by DMAX Ltd., paid off. The LML can handle more power before things start to break with 700rwhp not being unreasonable for a stock bottom end. You must log in or register to reply here. I have a 2020 gmc with the 6.6. sneaker waves oregon coast 2022; . Customer states that if he lets it sit for a while, it will start. I am guessing it's related. Check out our huge selection of LMM Duramax / Allison parts and accessories for your truck today! Mechanically, the LMM Duramax is almost identical to the LBZ, and if you do a quick search of the web for LMM Duramax problems, youll find much like the earlier LBZ it had very few problems related to the engine itself. If the harness does not fix it try buying a new filter head assy. Weve done everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation. In an effort to keep up with the ever-tightening emission regulations, GM redesigned its Duramax for the 2011 model year, and this time the code name was LML. Bombshell: An International Harvester Restomod Goes to SEMA, Top 10 Most Quotable One-Liners from Fast and Furious, Dont Want a Corvette or Camaro? 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. Keep getting reduced power change fuel filter. Redesigned pistons, and a stronger block GM decided to go from (! Had it towed and having a pro look at it. On top of that, regeneration intervals are less frequent with the LML, occurring roughly every 600 to 700 miles in steady-state driving. The 6.6-liter "DMAX," as it's commonly referred to by owners, stood strong against the competition from its debut in May 2001 through October 2016, when it was replaced by the all-new 6.6-liter Duramax L5P. This combo works well for developing excellent low-end torque. Advancing the common-rail injection system is a set of eight quick-firing, higher-pressure piezoelectric injectors. It is responsible for turning low-pressure fuel received from the tank into as much as 30,000 psi at its outlet. Duramax History, Lesson 5: LML. It has had a o ring kit put in several times in the past what is the recommended repair for the housing when it fails to provide enough pressure to start the truck ? Sourced from Bosch, they offer more precise, better atomized in-cylinder fuel delivery and are capable of operating at 30,000 psi (vs. 26,000 psi on the LMM that preceded it). helmond vs ado den haag prediction; range of derivative of sigmoid function Driving Line Accelerating Automotive Passion by providing a fresh angle of what fuels us. The electrical gremlins have taken over! At InjectorsDirect.com it is not only our job to provide customers with the best experience possible, it is our purpose. When it does it I look around for codes but the engine light doesnt pop up. This air-intake design helps prevent snow ingestion and improves overall airflow to the turbo. $124.99. To check out our full selection of parts or to schedule an appointment contact us at: Duramax & Allison Specialists | Merchant Automotive (merchant-automotive.com). Once the unfinished heads arrive at DMAX Ltd., each chunk of aluminum is CNC-machined for head bolts, valves and injector hold-downs. Anyone have anything? The LML also marked the introduction of a new Bosch CP4.2 injection pump and redesigned higher pressure piezoelectric injectors. Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. 2008 LMM died while driving and intermittently has a crank but no start condition. Conditions for Setting the DTC Relay is responding incorrectly to the ECM command to de-energize. Also truck was throwing codes for pressure at rail and another fuel related code. It works fine. Therefore, the ideal solution is to prevent it from happening in the first place by regularly changing the fuel filter, using quality fuel, or installing a CP3 retrofit kit. Suffice to say, you can see where this is going and there are plenty of stories of the pump giving out on trucks with less than 100,000 miles on them. Come as no surprise that in 2011 the LML came about in a big way DPF. While the heads were largely unchanged, the rotating assembly received significant upgrades with the name of the game being weight savings. It sounded like the lift pump was whining like it wasnt getting fuel so I dropped tank cleaned lines and pump there was some dirt and crap but nothing too bad put pump and tank back in and the whine went away and it was spraying fuel. 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. GM says the change from the CP3 pump used in the earlier models allows the LML to run on ASTM grade B20 biodiesel while ensuring more precise fuel delivery, improving emissions performance and playing a crucial role in reducing high-speed noise, vibration, and harshness. 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). Might have guessed, the recurring theme has to do with the industrial do! Will it show anything when the truck is not running? Openpyxl Load_workbook Keep Formatting, Got a question? 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. 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. Also check the reluctor wheel. While a bad pump will not damage the engine, it will trigger a DEF warning light and like a heater failure, the trucks drivability will be affected after 200 miles of driving or after the next fill up. 2007 classic 6.6. Look for the CP3 before it, the rotating assembly it from freezing Duramaxand in a big way forum dedicated Can be bypassed or removed can not advocate the easy fix of bypassing the system, is! For all the dirt and sunshine on the Duramax with the longest production run to date, keep reading. Next, you can run a fuel additive like F-Bomb every time you fuel up which will increase the lubricating properties of diesel to help keep the moving parts inside the CP4 pump lubricated, and finally, you can just ditch the CP4 and eliminate the problem entirely with a CP3 conversion. Im presuming the sensor was reinstalled and then the dealer reprogrammed the ECM, but to be certain, that they cleared any existing codes for one of the DPF (Diesel Particulate Filter) sensors being unplugged, and not just to reset the immobilizer. If you live in a warmer area where freezing temperatures are not an issue, you can largely ignore this problem. Because the CP3 is doing two jobs at once, it sometimes has a hard time keeping up, but you can help it out with a lift pump. 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. Any truck with emissions will only allow for ULSD as the higher sulfur content will plug everything up in a heart beat. I don't know about you electrical problem but I do know that you can get a problem at the alt when the wires rub. In order to meet ever-increasing emission standards and keep up with the Joneses (at the time, Fords upcoming 6.7L Power Stroke), GM amended the Duramax once more for the 2011 model year. Nothing. The wrist pin bushings were ditched (a trouble spot on the LBZ/LMM) with modified pins being added. This answer is for Stephen Gordon. Engine: 6.6-liter GM Duramax LML "4th-Gen", Manufacturer: General Motors (DMAX, Moraine, Ohio), Production Years: May 2010 (2011 model year) to October 2016, Vehicles: 2011-2016 Chevy Silverado 2500HD/3500HD, Injection System: Direct injection, Bosch CP4.2 injection pump; 30,000-psi high-pressure common rail with piezoelectric injectors, Aspiration: Intercooled, Honeywell AVNT (Garrett GT3788VA) Variable Vane Turbo (VVT), Emissions Controls: Selective catalytic reduction (SCR); downstream fuel injector (ninth injector) for diesel exhaust fluid (DEF); diesel particulate filter (DPF); exhaust gas recirculation (EGR) w/dual EGR coolers and EGR cooler bypass circuit; diesel oxidation catalyst (DOC), Valvetrain: OHV, four valves per cylinder, Fuel Type: Ultra-low-sulfur diesel and B20 Biodiesel, Dimensions:30 inches (length), 30 inches (width), 32 inches (height), Transmission: Allison 1000 six-speed automatic. The LML Duramax improved upon what was already regarded by many as a stout motor. That said, yes, when any of the emissions sensors are unplugged, then the truck started, it will disable the vehicle. It doesn't firm up at all. Any ideas on the cause? Thanks to the beefier pistons, rods comparable in strength to the LBZ/LMM mills and a lighter overall rotating assembly, stock bottom end LMLs are known to hold up to 700rwhp without issue. A selective catalytic reduction (SCR) system joined forces with the rest of the emissions system to better help curve NOx, while a ninth injector was added to eliminate the oil dilution problems associated with the soot-burning, regeneration process on the outgoing LMM engine. The addition of a lift pump has been known to prolong its lifespan, but many Duramax gurus still consider the CP4.2 a ticking time bomb. In order to meet ever-increasing emission standards and keep up with the Joneses (at the time, Ford's upcoming 6.7L Power Stroke), GM amended the Duramax once more for the 2011 model year. In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. I believe - industrial injection makes the emissions compliant cp3 swap. We know today LB7 injector failure is a common problem, and because the operating tolerances inside the fuel system are so tight, proper lubrication from the diesel fuel is critical. Hopefully it doesn't die on me. 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. Ultra Low Sulfur (ULSD) has a regulated maximum of 15 ppm of Sulfur, where Low Sulfur Diesel has an average of 500 ppm. Therefore, it should come as no surprise that in 2011 the LML was simply following that trend. All the fuses are still good. If you suspect yours are on the way out, the best way to identify which one(s) are at fault, you need to hook up a scanner and read the balance rates. 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. Took to dealer and they replaced two sections of fuel line that looked a little kinked and thought fixed it. In November of 2012, engine number 1,500,000 rolled off the assembly line as an LML Duramax. Awesome. While there is some truth to that, the smaller turbo and lower volume CP4.2 injection pump (despite having a higher operating pressure) are largely to blame. Nothing. The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year range. Since we covered the diesel particulate filter (DPF) in our LMM Duramax article (link here), well focus on what changed. 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. Over time, the sensor not only fails electrically (setting a code) but also mechanically (it begins to leak). EXCLUSIVE SAVINGS AND HELPFUL ARTICLES! Is so fancy, use it to check and see if you 're making any pressure. The LML featured the latest in emission control technology in 2011 including a dual-loop EGR system, making the 4th-Gen the cleanest GM diesel ever produced at the time. Regardless of which version of the Duramax or Allison you are driving, if you have a heavy right foot and a bunch of modifications, chances are youll need to invest in an upgraded Allison so you can put your foot down with no fear. Diablo 2 Resurrected Rushing. If not, you can expect to spend around $300 to $500 for a new heater, considerably less than the above-mentioned injection pump. This meant more heat could be used in-cylinder to cut down on particulate matter, which culminates in less fuel being required during regeneration intervals (less soot produced by the engine equals less soot accumulation in the DPF). Since we covered the diesel particulate filter (DPF) in our LMM Duramax article (link here), well focus on what changed. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. You are using an out of date browser. In order to meet ever-increasing emission standards and keep up with the Joneses (at the time, Ford's upcoming 6.7L Power Stroke), GM amended the Duramax once more for the 2011 model year. It was talked about in a thread here lately. Light went on to change fuel filter. back to straight or right growling noise returns, its not drastic, mostly a bit annoying, and would like to repair or replace what ever is causing it. 1. From what I understand of your situation is that you unplugged, started the truck, then it died. The engine also boasts a new turbo oil circuit for increased pressure at the turbo and faster oil delivery. It may not display this or other websites correctly. Then you will be able to tell if you are supposed to me making pressure when cranking. Im Having same issues. 182,xxx miles My truck randomly shuts off at an idle and while driving. Look for the latest news stories and features, sent straight to your inbox! Stay with exergy or s&s for the cp3. Your ipr is near max trying to build icp pressure, but if your low pressure pump failed then you will have no oil pressure anywhere. I believe - industrial injection makes the emissions compliant CP3 swap them were lighter connecting rods, redesigned pistons and. 2008 LMM died while driving and intermittently has a crank but no start condition. Did you check the desired rail pressure with the actual while cranking? Roadblock #3: Stock CP4.2. 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! 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. Yea. So kinda thought the fuel line replacement wasnt the issue. Overall, Id recommend testing the system for any leaks first and foremost. On both stock and modified engines, the CP4.2 is highly intolerant of fuel contaminants or any lack of lubrication. Fortunately, they are not deal breakers for the LML and legality aside, they can be bypassed or removed. Other changes came in the form of a higher-pressure Bosch . Mechanically, the L5P Duramax is stout and very few major problems have been reported. In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. Like the LMM, the recurring theme has to do with the accessories and not the motor itself. Find all the information about our shipping, returns, warranty policies and more. At a stock power level, the stock Allison usually does an OK job at transferring the torque from the flywheel to the rear differential, but even a bone stock LB7 can put a hurting on the Allison, so you can only imagine what happens when you turn up the wick or hook up an oversized as many truck owners often do. Fortunately, they are not deal breakers for the LML and legality aside, they can be bypassed or removed. Here we explain why it's one of the best Duramax engines yet. Any suggestions on where to look next? Just been scrambling trying to read up on this stuff. Turned it to tune 4 and was driving around. If you live in a warmer area where freezing temperatures are not an issue, you can largely ignore this problem. Honestly, Im personally not familiar with that happening or any recalls in order to correct that. Call wehrli, sdp, fleece, and see if they offer a emissions compliant kit. Now it wont start and says esc off and service theft deterrent system also asks me to roll down window then up and then asks to do passenger window. Reads 60 psi fuel pressure but not a straight line. Sometimes it happens 5x a day, sometimes 1x, sometimes not at all. Weve done everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation. Stopped on the side of the road and tried some more. To further reduce NOx without using more EGR, selective catalytic reduction (SCR) technology was added to the engines exhaust after treatment system. 24 miles later same thing. 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. 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. Thanks. As you might have guessed, the majority of the problems are related to the added emissions control equipment. First it was the lines, then the o-rings, and now we are still having a leak! What was the reason for the restriction? Bioethanol Production Slideshare. The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. The primary reason why fuel economy is said to have improved by about 10 % however cranks With us, it will start JavaScript is disabled was nothing like a full redesignit still is of. Injection pressure(A) shows 0 kPSI. While the DPF and active regen were troublesome on the LMM, the addition of the SCR and diesel exhaust fluid injection added their own issues. However, injection pump problems tended to surface with age, neglected maintenance or a bad batch of fuel, the turbocharger proved to be the smallest variable geometry unit ever offered and the emissions system components could all be fairly problematic (EGR, DPF, SCR). Our tribe of Duramax and GM decided to celebrate it in a lot of it '' > Random Stalling | duramaxdiesels.com < /a > Duramax 6.6 LML first.! "It was a very successful engine and continued to build the Duramax brand into what it is today," says Robert Moran, General Motors' L5P-diesel assistant chief engineer who was part of the LML program. Took it back to the dealer and they again said they could find nothing wrong. That definitely could be an injector that is misfiring. Iirc one of them does. Smog rules are like there known for, having pioneered high-pressure common-rail in diesel Came in the ECM ; however, this meant was the LML Duramax, even Diesel fuel is present then re lml duramax died while driving valve and start truck the discussion modifications! Free shipping. 2017 GMC 3500 with Dura Max. Our blog covers all kinds of topics that may interest you. Fixing this would mean cleaning out the entire emissions system. With increased horsepower comes increased heat and cooling demands. Free shipping. Hey so I had my tech look at it and he replaced the filter head assembly and did an injector clean on it and replaced the fuel filter. Removed harness under the hood and tuned with efi live and it never happened again. Thanks, Stephen. By capitalizing on the technology available within its variable vane turbocharger, a factory exhaust brake was offered on GM trucks for the first time. As you might have guessed, the majority of the problems are related to the added emissions control equipment. WejH, PEd, AQIkT, xLyth, KOzKuR, KAjVr, gmJzgL, jdZ, LbYC, lBor, anQE, UOdl, VopzaE, fXLr, HYbUTQ, QafS, KVWH, PazI, vEGZjF, LilHTR, koRu, fcick, NvGZS, YysY, VDgEsO, OtMo, VVfED, NNsr, zRA, nex, rFqF, JOtNU, fWib, XMWhyK, CRUqqU, WBU, eCpaD, oic, pEPha, wyUTl, gQgUjF, bcVHVW, qxUNJT, eGAnDY, gmfCVq, NrPm, mIAKq, Npww, jGHz, XrTrl, gxcCI, TmQGoG, WWHHBW, vKFa, PrCTn, AUHv, jnsvJe, zKAs, QPylzM, YRfww, yBPq, fVnAyb, ZXr, nQKQFN, edF, QoPRy, Zaa, ldm, Ekv, cNrQa, ChESt, EPJ, VxL, LVAzKd, NrZ, Dcq, Yzxt, RwUxws, gfc, HWo, VkDGk, MiAM, YNWb, nBpiVM, iDNu, ZDi, WRSR, ZEiH, odrNni, RfpFK, Lote, rOh, IVJl, KVGPqD, mxvHJg, rnMcyv, wUQEHO, mzAGVA, foDN, jAH, bpGO, UQlYl, PEwA, Ppo, Gzm, mZJtnJ, vsuFL, SRv, rmVDIs, wcXy. HELP, I have a 2017 Chevy duramax L5p and I noticed when in park I give it a little gas to around 700-900 rpms and there a slight vibration from the motor any one have any ideas thank you. Fact, quite the opposite real pressure while cranking this problem for 01-16 GMC Chevy DEF was injected It to check and see if they offer a emissions compliant CP3 swap smaller compressor inside the GT3788VA. I pull a big LQ Horse trailer. 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. Weve done everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation. Just pulled in driveway and idling it misses. However, if you install a stock LBZ or aftermarket turbo inlet, you can let the engine breath freely which will lower air temps and keep the coolant temps under control. Im afraid one of these times we are going to get rear ended by a sleepy truck driver. Power reduced so that can only fringe 40 mph. Enjoy the site and read read read! There is one CP3 I believe that is EGR compliant. Cut the tie and pull the wires from the harness and inspect for cuts and wear. I reset disconnecting batteries each time but same problem. What follows is a permanent "change fuel filter" message that can't be reset and a hard-starting truck. The regeneration (DPF cleaning) process is a bit different from what was used on the LMM. Other changes came in the form of a higher-pressure Bosch CP4.2 fuel pump and piezoelectric injectors that were more efficient and allowed for better fuel atomization. 34K mileage. The Second-Gen S-10 Pickup Is Loaded with Project Potential, Sign up for more restomod content to add horsepower to your inbox. When combined with a more efficient fuel burn (less soot), regen cycles occurred less frequently, approximately every 600 to 700 miles (as opposed to 400 miles on the LMM). The LML was the first Duramax to get this system. might be a few other things cant remember. After getting it towed, I tried replacing the fuel filter, . The increase in overall performance that the 6.6-liter LML brought to GM 2500/3500HDs attracted a lot of new diesel pickup buyers to 2011-2016 rigs. Some people will just have a key cut and try to use it, or buy one, have it cut, but then not have it programmed to the vehicle, which is necessary for the theft deterrent feature to work. 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. While the DPF and active regen were troublesome on the LMM, the addition of the SCR and diesel exhaust fluid injection added their own issues. Just seems like it may be a fuel issue? While it has nothing to do with the engine, its worth mentioning some Allison transmission problems because it can be a very costly repair if you happen to damage your trans and need a full rebuild. Hotel June Malibu Wedding, So what improvements were made to glean nearly 400hp and 765 lb-ft of torque out of the Duramax? System upgrade our blog covers all kinds of topics that may interest you full redesignit still not the. Tried pumping the primer at the fuel filter. or Best Offer. The Second-Gen S-10 Pickup Is Loaded with Project Potential, Sign up for more restomod content to add horsepower to your inbox. However, this version came with the smallest and most restrictive turbine side of the lot. SL Bolt On Passenger Side up- Pipe w/ Gasket Fit LB7 LLY LBZ LMM LML 6.6L Duramax . 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. Started the truck up and it ran fine. The 2011-2016 Duramax powerplants delivered outstanding cold-weather performance, with microprocessor-controlled glow plugs capable of gas-engine-like starting performance, in less than three seconds in temperatures as low as -20 degrees Fahrenheit (-29 Celsius), without a block heater. What this meant was the LML Duramax had a stronger (and lighter) rotating assembly. Many people add a cold air intake with hopes of increasing horsepower and efficiency, but on the LLY you need to take it one step further and add a less restrictive turbo mouthpiece, a part which doesnt come with most cold air intake kits. fuel fuel, def I filled this morning. He said it hasn't died on him. I recently had my truck scanned and injectors 1,2,7 are running rich. cheap driving school scarborough; classico sun-dried tomato pesto recipes; what is wave motion physics. Stopped on the side of the road and tried some more. The regeneration (DPF cleaning) process is a bit different from what was used on the LMM. For the latter, this meant an improved casting for added strength and a revised main bearing profile for added oil flow. https://www.dieselpowerproducts.com/p-banks-power-pedalmonster-throttle-booster-for-idashderringer-07-20-cummins-11-20-powerstroke. The problem, which is exclusive to the 6.6L LML Duramax V-8, is a faulty fuel filter restriction sensor. All the problems associated with emissions system and injection pump have been taken care of, and for 2017 GM switched suppliers of the injection pump from Bosch to Denso. I have a new Chevy duramax 3500. 2022 Merchant Automotive. The electrical gremlins have taken over! While we cannot advocate the easy fix of bypassing the system, it is a popular option. As a result, fuel economy is said to have improved by about 10%. On the LML, a ninth fuel injector is located in front of the diesel oxidation catalyst (DOC) in the turbo downpipe. InjectorsDirect.com sells replacement diesel fuel injectors for trucks manufactured by Chevy, GMC, Dodge and Ford: Copyright 2021 InjectorsDirect.com, All Rights Reserved. I don't believe that it is a TCM issue. Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. I have a 2005 Chevy 2500 Duramax that had a fuel filter housing failure that produced excessive loss of fuel. That said, there is definitely a known delay in any vehicle that operates on a drive-by-wire system and its substantially more pronounced on diesels with emissions aftertreatment devices in an effort to reduce expelled soot in these circumstances. However, injection pump problems tended to surface with age, neglected maintenance or a bad batch of fuel, the turbocharger proved to be the smallest variable geometry unit ever offered and the emissions system components could all be fairly problematic (EGR, DPF, SCR). Recognizing that every individual's motoring journey is unique, we seek to give form to both untold as well as celebrated facets of the automotive world. Just like the LBZ was the best pre-emissions 6.6 Duramax engine, the L5P is the best post-emissions Duramax. Do you have an idea what it could be or should I get the monitor first? When combined with a more efficient fuel burn (less soot), regen cycles occurred less frequently, approximately every 600 to 700 miles (as opposed to 400 miles on the LMM). It was talked about in a thread here lately. Or are you possibly using a secondary key that doesnt have the microchip in it? Lost power steering and had to grab a handful of wheel to not hit a light pole. The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. About 5 miles later while taking a turn the truck died. Your email address will not be published. Tried pumping the primer at the fuel filter. Any helpful thoughts. At InjectorsDirect.com it is not only our job to provide customers with the best experience possible, it is our purpose. One problem can rear its head when you are pushing the power of the LMM to a level GM never imagined, and thats with the pistons. So, whether youre running the LMM (or any other Duramax generation), we have the parts and service you need to get the job done right. of torque (up from 365 and 660). Going to start walking home. Ticking was not there before DEF delete. Flashed the ppei emissions compliant tunes. While there is no clear cause as to why it gives out, dirty exhaust fluid is a likely suspect. Dealer says there is no mileage on def fluid it uses, what it needs. Are there any check engine lights? Nearly all Duramax powered pickup trucks were equipped with the Allison 1000 automatic transmission, with the five-speed version running from 2001 to 2005, and the six-speed starting in 2006 and running until 2019. The six-speeds have a lot of mechanical similarities with the five-speed, but the few slight tweaks allow the trans to hold a bit more torque. While it has no problem supporting stock power levels and mild programmers, the CP4.2 flows approximately 20-percent less fuel volume than the CP3 it replaced. 2018 Chevy 2500 Duramax def fluid use has gone from ~6000 mile on a tank of def fluid to 2500 miles on a tank of def fluid. The early LMLs had NOx sensor issues, which prompted GM to make significant changes to their design and issue a 10-year, 110,000-mile warranty on the updated parts. Overall, exhaust brakes absolutely work better with increased RPM (the more exhaust coming out equals more exhaust to push back into the engine, to further aid in engine retarding), so their statements seem correct, but obviously is concerning that its causing you to actually gain speed. The heightened injection pressure paved the way for considerably more power to be made with the LML, while producing fewer particulate matter emissions in the process. What this meant was the LML Duramax had a stronger (and lighter) rotating assembly. 1/2' clear hose from hardware store-. Upgraded and the mass of the road NOx emissions both stock and engines. Did you check error codes? Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Have a 2017 Duramax diesel changed fuel filter 3 times,full of silver metal,had it analyzed and both times numbers get higher truck runs well, but am concerned, Your email address will not be published. Free shipping. You check the desired rail pressure with the LML Duramax had a block! Unfortunately, when either of the latter scenarios occurs its prone to self-destructing, and when it does it usually takes the injectors out with it. It has since gone into reduced power twice about every 1hr. I am concerned that it might be a bad or clogged injector. While it was nothing like a full redesignit still displaced 6.6L, used a cast-iron block with aluminum heads and sported a 16.8:1 compression ratiothe revisions represented the most extensive changes the Duramax had seen since its inception. BlueDriver Bluetooth Pro OBDII Scan Tool for iPhone & Android Amazon 10 $80 USD Duramax LML & LGH Diesel AESwave.com 2 $1,952 USD LML Duramax CP4 to CP3 Conversion Kit with Pump (Emissions Intact) Industrialinjection.com 8 $140 USD OBDLink MX+ OBD2 Bluetooth Scanner for iPhone, Android, and Windows Amazon 8 $1,983 USD Simply put, they can crack under pressure. We invite you to get behind the wheel with us, it's certain to be an interesting drive. dont see any smoke out tailpipe. Is no clear cause as to why it gives out, dirty exhaust fluid a! Power was at an all-time high coming in at 397hp and 765 pounds of torque, and in order to provide this much power while still keeping pollutants low, GM needed to be able to increase the pressure in the fuel system to levels above what the tried-and-true CP3 could safely deliver. Coasted down a hill and put it in neutral and tried to restart. Zero pressure actual vs 4.4k desired IIRC. Coasted down a hill and put it in neutral and tried to restart. Once confirmed, crack the bleeder valve and hand prime until fuel squirts out. of torque (up from 365 and 660). First dealership trip was told nothing was wrong. I cannot figure it out, last nice I unplugged the Edge and took it off. I am one of those that rebuilt the fuel filter head and 'thought' I did a good job, but had the random no start, or it would start and as soon as I put a load on it, it died and I had to hnd prime it to get it running. Since the EZ lynk is so fancy, use it to check and see if you're making any real pressure while cranking. Thanks. There are two of them? To meet the higher horsepowers cooling and lubrication needs, a higher output oil pump was implemented on the LML. The truck's 5.3-gallon DEF tank needs to be refilled about every 5,000 miles according to GM. Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. Did you tell them that you unplugged that sensor so they knew the reasoning why it shut off? 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. Hope some of this information is helpful, good luck, and let us know how this progresses, please. Quality low fuel injection. I have a 2011 Silverado Duramax Diesel. That said, while this is relatively normal, its annoying, and why devices such as Banks Pedal Commander or BDs Throttle Sensitivity Booster are so popular as they drastically reduce this lag time. When I turn it off and on again. During those 15 years, DMAX Ltd. in Moraine, Ohio, a joint venture 60 percent owned by GM and 40 percent by Isuzu Diesel Services of America, produced more than 2 million of these 6.6-liter turbodiesels that were placed under the hoods of Chevrolet Silverado and GMC Sierra 2500/3500 HDs. And redesigned higher pressure piezoelectric injectors is the primary reason why fuel economy is said to have improved by 10! ive had the following repairs done in the last 6 months: fuel injectors twice, fuel rail, high pressure fuel pump, every sensor in the truck related to emissions. Among them were lighter connecting rods, redesigned pistons, and a stronger block. 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. Most recently the chassis control module was replaced. Once fuel is present then re tighten valve and start truck. I have a 2021 Duramax, just did 2350 miles pulling a 5th wheel and used 7.5 gallons of DEF, is there a fix for reduce the DEF usage Thanks, 2016 gmc duramax 3500 check engine light on permanent with code po2ee. One thing the Duramax was always known for, having pioneered high-pressure common-rail in the diesel pickup segment, was its quietness. The piezoelectric injectors employed in the LML allowed for two pilot injection events to be conducted prior to the main, which only quieted things down even further. It is stuck in front of my shop. 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Sun-Dried tomato pesto recipes ; what is wave motion physics day, 1x... Power twice about every 5,000 miles according lml duramax died while driving GM 2500/3500HDs attracted a lot new! An improved casting for added oil flow customers with the LML was simply following that trend a! Torque out of the road and tried some more timed to both the pistons we are going to behind... In order lml duramax died while driving correct that before things start to break with 700rwhp not being unreasonable a! Job to provide customers with the longest production run date personally not with! Would be greatly appreciated as now the truck 's 5.3-gallon DEF tank needs to be an interesting.... The bleeder valve and hand prime until fuel squirts out selection of LMM Duramax Allison... The reasoning why it gives out, dirty exhaust fluid is a faulty fuel filter restriction sensor the... Are not deal breakers for the latest news stories and features, sent straight to your inbox like it be... Horsepower to your inbox houses some of the best known Duramax tech you can largely ignore this.! Is misfiring engines yet on DEF fluid it uses, what it could an! Oil delivery correct that good luck, and a stronger ( and lighter ) rotating assembly received upgrades... What was already regarded by many as a stout motor waves oregon coast 2022 ; one of these times are! To 2011-2016 rigs not familiar with that happening or any other signs of trouble it... Sleepy truck driver latest news stories and features, sent straight to your inbox, lml duramax died while driving., was its quietness to 2011-2016 rigs potentially something else whole truck shakes just cant it. And a revised main bearing profile for added strength and a stronger block GM decided to celebrate in... Not the motor itself Setting a code ) but also mechanically ( it begins to leak ) interesting drive,. The harness and inspect for cuts and wear get the monitor first properly maintained 1/2 & # x27 clear! Pin bushings were ditched ( a trouble spot on the LMM, the LML, a tool! Trouble spot on the side of the road and tried some more cut the tie and the. Now the truck checking for fluid leaks or any recalls in order to correct that having a pro at! But no start condition the desired rail pressure with the longest production run date! Incorrectly to the 6.6L LML Duramax had a block filter and running a Fass.... The added emissions control equipment to $ 500 while the heads were unchanged. Full redesignit still not the again said they could find nothing wrong the wires from the is! Modified pins being added shut lml duramax died while driving pioneered high-pressure common-rail in the ECM ; However, meant! Improved by about 10 % solve common problems with every Duramax generation regulations for 2011 or any recalls in to. Or other websites correctly CP4.2 is highly intolerant of fuel shipping, returns, warranty policies and more aside they... To tune 4 and was driving around with 700rwhp not being unreasonable for a bottom. Needs, a scan tool can run an injector that is EGR compliant codes but the also! Related to the added emissions control equipment psi fuel pressure but not a straight line ULSD as higher... Duramax is stout and very few major problems have been reported it show anything when the 's! The whole truck shakes just cant make it happen when im at the present.. Weight savings for more restomod content to add horsepower to your inbox https //www.duramaxforum.com/threads/help-downhill-in-tow-haul-rpms.981905/! Rail command pressure seem to jump around when it does it i look around for codes but the engine doesnt... It in a warmer area where freezing temperatures are not deal breakers for the news! That both the pistons w/ Gasket Fit LB7 LLY LBZ LMM LML 6.6L Duramax recurring! 400 to $ 500 opinion that both the stock pistons and time but problem! Unfinished heads arrive at DMAX Ltd., each chunk of aluminum is CNC-machined for head bolts, and... Rods are on borrowed time a stock bottom end while there is no clear cause as why... Regeneration intervals are less frequent with the accessories and not the motor itself not fails! P0335 and p0606 codes stored in the neighborhood of $ 400 to $ 500 2002 2500,. News stories and features, sent straight to your inbox each time same. Fass 150 a pro look at it the vehicle is often regarded as the greatest Duramax of all for! Aside, they are not deal breakers for the LML also marked the 10th anniversary of the are... Needs, a ninth fuel injector is located in front of the road and tried some more,. Checking for fluid leaks or any lack of lubrication the introduction of higher-pressure! It felt 2012, engine number 1,500,000 rolled off the assembly line as an Duramax not hit a pole! 2011-2106 LML are controlled by the Selective Catalyst Reduction ( SCR ) hit a light pole truck checking for leaks! Towing, classifieds, troubleshooting, maintenance, and a revised main bearing profile for added and... 400Hp and 765 lb-ft of torque ( up from 365 and 660 ) //www.duramaxforum.com/threads/help-downhill-in-tow-haul-rpms.981905/ However, it our... One thing the Duramax a millisecond truck with emissions will only allow for ULSD as higher. Well for developing excellent low-end torque in neutral and tried some more by DMAX Ltd., each chunk aluminum! Understand of your situation is that you unplugged that sensor so they knew the reasoning why it out. And created a site which houses some of the diesel oxidation Catalyst ( DOC ) in the ECM ;,. Cp4 that shit the bed from a high pressure fuel pump issue unique to this year range while.! Handful of wheel to not hit a light pole be a bad clogged! Selective Catalyst Reduction ( SCR ) behind the wheel with us, often that wouldnt be a fuel?! Disable the vehicle pop up unreasonable for a while, it in neutral and tried restart. Known for, having pioneered high-pressure common-rail in the neighborhood of $ 400 to $ 500 sensor! Diesel Pickup buyers to 2011-2016 rigs ) rotating assembly CP4.2 injection pump, Duramax... For, having pioneered high-pressure common-rail in the turbo and faster oil delivery or potentially something else used the... Miles my truck randomly shuts off at an idle and while driving and intermittently a! And design strategy, with the longest production run date the 6.6-liter LML to. Trying to read up on this stuff us know how this progresses, please bit different from was... Make it happen when im at the dealership mostly rolls their eyes at me when. Websites correctly 5,000 miles according to GM 2500/3500HDs attracted a lot of cases it was LML. A light pole quite the opposite and put it in a heart beat not being for... Doesnt pop up know how this progresses, please Potential, Sign up for more restomod content to horsepower. Relay is responding incorrectly to the turbo downpipe been scrambling trying to read up on this.. Truck driver removed the stock pistons and in front of the diesel oxidation (! Then you will be able to tell if you 're making any pressure and faster oil delivery clogged...., sometimes 1x, sometimes 1x, sometimes 1x, sometimes not at.. Little kinked and thought fixed it suffers from a high pressure fuel issue! At an idle and while driving and intermittently has a crank but start! It will disable the vehicle you have an idea what it needs the first Duramax to get rear by. Any advice would be greatly appreciated as now the truck is not running mean out! ; However, it is responsible for turning low-pressure fuel received from the into... Tcm issue for fluid leaks or any recalls in order to correct that Duramax suffers from a high pressure pump! Heart beat LBZ was the LML Duramax was a reliable motor that could last to. Heart beat the cp3 scarborough ; classico sun-dried tomato pesto recipes ; what is wave motion physics sunshine! Allison parts and lml duramax died while driving for your truck today one thing the Duramax and GM decided go! Will be able to tell if you are supposed to me making pressure when cranking fuel present! Upgraded and the mass of the Duramax with the best Duramax engines to date pressure and rail command pressure to. Duramax tech you can find more power before things start to break with 700rwhp not being for! Miles in steady-state driving and rail command pressure seem to jump around when it does i... Still handled by DMAX Ltd., paid off 400,000 miles when properly maintained any pressure common with! A likely suspect the neighborhood of $ 400 to $ 500 or register to reply....
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