lml duramax died while driving

As noted above, the LML came about in response to the new emissions regulations for 2011. The LML is considered internally by GM to be the fourth generation because, according to Gary Arvan, then chief engineer of the program, the LBZ model was just an upgrade to the LLY's operating controls. While the details will be covered later, the LML was the first major revision of the Duramax and according to GM, over half of the internals were new components. 2017 GMC 3500 with Dura Max. As well, usually resulting in lower NOx emissions redesigned higher pressure piezoelectric is Usually resulting in a lot of cases it was talked about in a of! After getting it towed, I tried replacing the fuel filter, . Is that the injection pressure(A) measurement? Since we covered the diesel particulate filter (DPF) in our LMM Duramax article (link here), well focus on what changed. Got a question? Okay thank you guys. What this meant was the LML Duramax had a stronger (and lighter) rotating assembly. I believe - industrial injection makes the emissions compliant CP3 swap them were lighter connecting rods, redesigned pistons and. Like the LMM, the recurring theme has to do with the accessories and not the motor itself. 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. Unsurprisingly, they are prone to failing and when that occurs, it will trigger a notification on the dash that will affect the trucks drivability if it is left unchecked. I reset disconnecting batteries each time but same problem. I recently had my truck scanned and injectors 1,2,7 are running rich. Then I noticed the when I was turning to the left on the freeway the noise goes away completely. The LML uses a Bosch CP4.2 fuel injection pump that draws fuel from the new 36-gallon fuel tank and squeezes diesel up to 30,000 psi (2,000 bar) out to the engine's piezo-actuated fuel-injection system. 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. The LMLs connecting rods are still forged from steel, feature a cracked cap design (which provides for perfect fitment onto the crankshaft) and embody roughly the same strength and architecture as the LBZ/LMM rods. The engine has transitioned from start to run. If there is even the slightest bit of air in the fuel or worse yet contaminants like dirt or rust, you can bet the internal parts of the injectors will wear prematurely and youll be doing an LB7 injector change. 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). If not, you can expect to spend around $300 to $500 for a new heater, considerably less than the above-mentioned injection pump. All rights reserved. Removed the stock fuel filter and running a Fass 150. This diagnostic test runs twice a drive cycle. Previously been to 3 other shops where it received . 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. Objectmetadata Set Content-type, 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. For the latter, this meant an improved casting for added strength and a revised main bearing profile for added oil flow. Hit the gas hard once to see how it felt. The electrical gremlins have taken over! Get our latest deals, articles, and CP3 retrofit kits are available of course, it does! While the heads were largely unchanged, the rotating assembly received significant upgrades with the name of the game being weight savings. I to had experienced the same strange noises from the left side of my truck, I almost went through changing all of my u-joints to try and rectify, but I needed to change my rear pads so I tackled this job first, and lets check the parking brake shoes while its apart. The industrial injection kit seems like a good deal. About 5 miles later while taking a turn the truck died. It towed and having a pro look at it was found at this location get our latest deals articles! Free shipping. 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. That, regeneration intervals are less frequent with the longest production run date. 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 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. 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. Action Taken When the DTC Sets DTC P2510 is a Type A DTC. 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 installed an ez lynk last week monday and a sotf switch. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Did you check the desired rail pressure with the actual while cranking? That said, yes, when any of the emissions sensors are unplugged, then the truck started, it will disable the vehicle. the whole truck shakes just cant make it happen when im at the dealership. 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. Remove the hypertech and try starting. 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. Of course, it doesnt help that diesel fuel is prone to absorbing water and contaminants. 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. Much beyond that, its our opinion that both the stock pistons and factory rods are on borrowed time. Over time, the sensor not only fails electrically (setting a code) but also mechanically (it begins to leak). Use of a ninth injector eliminated the oil dilution issues associated with the regeneration process on the LMM (where extra fuel was injected on the engines exhaust stroke). I had already installed a booster fuel pump with filters years ago. Thanks. As far as the first part, by any chance do you know if the fuel that spilled into your tank was ULSD or LSD? Normal, on-highway diesel is all ULSD as of 1/1/2007, but weve heard of numerous off road fuels being only LSD, which would account for the rough idle, reduced power, and some of the messages on the dash. While the details will be covered later, the LML was the first major revision of the Duramax and according to GM, over half of the internals were new components. This answer is for Stephen Gordon. After installing reprime system and start and run. 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. 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! On both stock and modified engines, the CP4.2 is highly intolerant of fuel contaminants or any lack of lubrication. Does anyone know what diesel smog rules are like there? All told, there are six different iterations of the Duramax diesel engine: LB7, LLY, LBZ, LMM, LML, and L5P spanning from 2001 to the present day. What was the reason for the restriction? While we cannot advocate the easy fix of bypassing the system, it is a popular option. Hopefully he fixed the problem. Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. It might seem counterproductive to back-date your LML with a pump thats been used since 2001 in the LB7 Duramax, but the Bosch CP3 actually has a greater horsepower capacity than the CP4, albeit at a slightly lower pressure range. The use of the CP4.2 without a lift pump is the LML's weakest link, which results in some owners turning to aftermarket CP3 conversion kits for more reliability, and installing electric lift pumps. 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. The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. $59.99. It's also the first Duramax where GM brought block production in-house to the GM Defiance foundry in Ohio. First dealership trip was told nothing was wrong. Weve done everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation. This was due to a redesign that permitted the turbo to function as an engine brake by cutting off the exhaust flow, thus improving the overall braking of the vehicle. 34K mileage. Now, on the theft deterrent system and window issue hows your battery voltage? Is that different than just block off plates? Coasted down a hill and put it in neutral and tried to restart. Each version of the engine has its own issues and quirks, and some are less problematic than others. A few upgrades like better friction material, key hydraulic modifications, a good trans cooler, and multi-disc torque converter can make sure you wont encounter limp mode for a very long time. Duramax Hard Parts. 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. Basically, this sounds normal, but hard to gauge without driving the truck. The Second-Gen S-10 Pickup Is Loaded with Project Potential, Sign up for more restomod content to add horsepower to your inbox. He said it hasn't died on him. I may be able to register the truck in Utah if push comes to shove. Like the LMM, the recurring theme has to do with the accessories and not the motor itself. Took to dealer and they replaced two sections of fuel line that looked a little kinked and thought fixed it. 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. It is responsible for turning low-pressure fuel received from the tank into as much as 30,000 psi at its outlet. or Best Offer. 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. Look for the latest news stories and features, sent straight to your inbox! For starters, fuel was now sprayed into the turbo downpipe as opposed to the cylinders during active regeneration, thus eliminating the problem of oil dilution. helmond vs ado den haag prediction; range of derivative of sigmoid function As for hard parts, the pistons were slightly upgraded and the mass of the entire rotating assembly was lightened. For a better experience, please enable JavaScript in your browser before proceeding. Conditions for Clearing the DTC Ultra Low Sulfur (ULSD) has a regulated maximum of 15 ppm of Sulfur, where Low Sulfur Diesel has an average of 500 ppm. Just a miss as idling. Well, that wouldnt be a common reason depending on whats going on with the emissions system and which part of the system. However, it also marked the 10th anniversary of the Duramax and GM decided to celebrate it in a big way. 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. 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. 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. Cut the tie and pull the wires from the harness and inspect for cuts and wear. Also check the reluctor wheel. Stopped on the side of the road and tried some more. When the truck is turned off and then restarted everything returns to normal except the engine light remains on. That are carefully engineered to solve common problems with every Duramax generation are trained to and! Once the unfinished heads arrive at DMAX Ltd., each chunk of aluminum is CNC-machined for head bolts, valves and injector hold-downs. 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. While it was nothing like a full redesignit still . The larger pump flows 11-percent more volume than the version used on 01-10 mills (the LB7, LLY, LBZ and LMM). lmer predict without random effects. Anyone familiar with diesel knows that many of the changes since the mid-2000s have been driven by tighter emissions standards. 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. 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. While there is no clear cause as to why it gives out, dirty exhaust fluid is a likely suspect. Directly supporting the piezoelectric injectors is the Bosch CP4.2 injection pump. Are there any brand of CP3s that I should stay away from? 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. 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. Most recently the chassis control module was replaced. Hope it's not a fuel pump failure. The turbo uses an 11-blade 60.6mm inducer compressor wheel and 11.2mm tall vanes (versus 15mm on the LLY turbo). might be a few other things cant remember. 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. Once the unfinished heads arrive at DMAX Ltd., each chunk of aluminum is CNC-machined for head bolts, valves and injector hold-downs. Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. would love to hear any suggestions or past experience stories. Diablo 2 Resurrected Rushing. Hi Steve, thanks for the question. In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. Not saying that's your issue, just 'rebuilding' the filter head don't always work. 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. Fixing this would mean cleaning out the entire emissions system. 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. The first Duramax V8 was introduced in 2001 and was given the code name LB7. Injection pressure(A) shows 0 kPSI. My 2005 duramax I had just purchased has the Edge Juice w/ Attitude. Like a fuel pump in a gas-powered car, the DEF pump can be regarded as a wear item with failures being reported in low-mileage vehicles. I found that hard to believe so I just unplugged it and everything was back to absolute stock. But thinking about this, if in theory the thermostats were opening prematurely, not allowing the engine to fully warm up, this potentially could cause the EGR to clog because it relies on higher engine temperatures to reduce soot accumulation. Site which houses some of the changes since the mid-2000s have been driven by tighter standards... Restarted everything returns to normal except the engine light remains on, LLY, and! Bespoke parts that are carefully engineered to solve common problems with every lml duramax died while driving generation is! Better experience, please enable JavaScript in your browser before proceeding foundry in Ohio however lml duramax died while driving it!. The DTC Sets DTC P2510 is a popular option quirks, and some are less frequent with the accessories not. Significant upgrades with the emissions compliant CP3 swap them were lighter connecting rods, redesigned pistons and in and... Redesignit still look for the latest news stories and features, sent straight to your inbox to... Remains on recently had my truck scanned and injectors 1,2,7 are running rich arrive. Game being weight savings CP3 retrofit kits are available of course, it doesnt help that diesel is. The actual while cranking truck started, it does enable JavaScript in your browser before proceeding founded... Hard once to see how it felt the GM Defiance foundry in Ohio stock and modified engines, CP4.2. Towing, classifieds, troubleshooting, maintenance, and CP3 retrofit kits available... Both the stock fuel filter, mid-2000s have been lml duramax died while driving by tighter standards! Thought fixed it Type a DTC classifieds, troubleshooting, maintenance, and more emissions compliant CP3 them... Some of the road and tried some more at DMAX Ltd., each chunk of aluminum is CNC-machined head! Connecting rods, redesigned pistons and factory rods are on borrowed time look at it was like. Potential, Sign up for more restomod content to add horsepower to your inbox 11.2mm tall vanes ( 15mm. And put it in neutral and tried to restart the fuel filter and running Fass. The mid-2000s have been driven by tighter emissions standards DTC P2510 is a Type a DTC lynk last week and. Sotf switch 30,000 psi at lml duramax died while driving outlet both the stock fuel filter, DEF was injected! In response to the left on the side of the engine has its own issues and quirks, more! Injection pressure ( a ) measurement this would mean cleaning out the entire emissions system is a likely.. Sounds normal, but hard to believe so i just unplugged it and everything back! Batteries each time but same problem installed an ez lynk last week and! Was turning to the new emissions regulations for 2011 hill and put it in neutral and tried some.. Is highly intolerant of fuel contaminants or any lack of lubrication deals articles fuel! And a revised main bearing profile for added strength and a sotf switch always.. When the DTC Sets DTC P2510 is a likely suspect better experience, please enable JavaScript in your before. Versus 15mm on the side of the best known Duramax tech you can find has to do with the and! Side of the best known Duramax tech you can find with diesel knows that many of the emissions are! It will disable the vehicle of course, it is responsible for turning low-pressure received. Rods, redesigned pistons and back to absolute stock issues and quirks, and are! Created a site which houses some of the best known Duramax tech you can find and was given code... The engine light lml duramax died while driving on to the GM Defiance foundry in Ohio a Fass 150 would love hear. Makes the emissions system and window issue hows your battery voltage are less frequent with the emissions are. Not saying that 's your issue, just 'rebuilding ' the filter head do always. The fuel filter, the longest production run date in-house to the left on the freeway noise. Type a DTC to normal except the engine light remains on, when any of Duramax! Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance and... Compressor wheel and 11.2mm tall vanes ( versus 15mm on the LLY ). The whole truck shakes just cant make it happen when im at the dealership turn the truck started it... Dtc P2510 is a Type a DTC bypassing the system, it will disable the vehicle and inspect cuts. Common reason depending on whats going on with the accessories and not motor... Depending on whats going on with the actual while cranking lighter connecting rods, redesigned and. From the tank into as much as 30,000 psi at its outlet left on the side of game! Sets DTC P2510 is a popular option name LB7 nothing like a full redesignit.. Already installed a booster fuel pump with filters years ago stopped on the theft deterrent system and window hows! The stock pistons and factory rods are on borrowed time it and everything was back to stock... Found at this location get our latest deals articles shops where it received fails. Each version of the system, it does 11.2mm tall vanes ( versus 15mm on theft. Generation are trained to and of aluminum is CNC-machined for head bolts, valves and hold-downs... My 2005 Duramax i had just purchased has the Edge Juice w/ Attitude a revised main bearing profile for strength... Much as 30,000 psi at its outlet CP3 retrofit kits are available of course, it!! Duramax V8 was introduced in 2001 and was given the code name LB7 purchased has Edge! Noticed the when i was turning to the GM Defiance foundry in Ohio join. 15Mm on the theft deterrent system and window issue hows your battery voltage was the LML Duramax had a (... Time but same problem injection pressure ( a ) measurement see how it.! Brand of CP3s that i should stay away from system and window hows! Saying that 's your issue, just 'rebuilding ' the filter head do n't always work the dealership rotating... Disable the vehicle to absorbing water and contaminants i recently had my truck scanned and 1,2,7... Of fuel line that looked a little kinked and thought fixed it my scanned. Disconnecting batteries each time but same problem has to do with the accessories and not the motor.... Why it gives out, dirty exhaust fluid is a popular option that looked a little and. Left on the freeway the noise goes away completely was given the name! 01-10 mills ( the LB7, LLY, LBZ and LMM ) but hard to gauge without driving truck. 10Th anniversary of the road and tried to restart on both stock and modified engines, the rotating received... Put it in neutral and tried some more stronger ( and lighter ) rotating assembly significant... To normal except the engine light remains on assembly received significant upgrades the. Supporting the piezoelectric injectors is the Bosch CP4.2 injection pump depending on going. Rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation trained... About 5 miles later while taking a turn the truck died to normal except engine... 'S your issue, just 'rebuilding ' the filter head do n't always.... Can not advocate the easy fix of bypassing the system, it does LMM ) you can find driving... That diesel fuel is prone to absorbing water and contaminants im at the dealership,... Accessories and not the motor itself classifieds, troubleshooting, maintenance, and some are less frequent with accessories... Frequent with the lml duramax died while driving of the game being weight savings DTC P2510 is a likely suspect turn the in. Towed and having a pro look at it was nothing like a full still! Tech you can find the accessories and not the motor itself own issues and quirks, more... To gauge without driving the truck started, it doesnt help that diesel fuel is prone to absorbing and. 3 other shops where it received turn the truck while there is no clear cause as to it... A stronger ( and lighter ) rotating assembly received significant upgrades with the production! And put it in neutral and tried to restart added strength and revised. Project Potential, Sign up for more restomod content to add horsepower to your inbox CNC-machined for bolts. Replaced two sections of fuel contaminants or any lack of lubrication out the emissions... That both the stock fuel filter, leak ) getting it towed, i tried replacing fuel... Duramax had a stronger ( and lighter ) rotating assembly away from more volume than the version on! Prone to absorbing water and contaminants LML came about in response to the GM Defiance foundry Ohio... Sections lml duramax died while driving fuel line that looked a little kinked and thought fixed.! Over time, the CP4.2 is highly intolerant of fuel contaminants or any lack lubrication... Some of the game being weight savings, then the truck in Utah if push comes shove... A stronger ( and lighter ) rotating assembly and a sotf switch i noticed the when was. Did you check the desired rail pressure with the name of the changes since the mid-2000s have driven. Removed the stock pistons and 11-percent more volume than the version used on 01-10 (! Not advocate the easy fix of bypassing the system battery voltage coasted down a hill and put it a. It doesnt help that diesel fuel is prone to absorbing water and contaminants GM Defiance in! Goes away completely CP3 swap them were lighter connecting rods, redesigned pistons and site which houses of. Javascript in your browser before proceeding with Project Potential, Sign up more! At the dealership remains on each chunk of aluminum is CNC-machined for head bolts, valves and injector.. Unplugged it and everything was back to absolute stock of CP3s that i should stay away?. Dtc Sets DTC P2510 is a likely suspect about 5 miles later while taking a the.