For those in the aftermarket, this means the LML is much less prone to cracking pistons at higher horsepower levels than the LBZ and LMM. Another upgrade the LML received in addition to the piezoelectric fuel-injection system was a set of rapid-heating glow plugs. Nothing. Our guide will help ensure you get the right injectors for your truck so you can get back on the road. However, it also marked the 10th anniversary of the Duramax and GM decided to celebrate it in a big way. I seem to recall a notice from GM on this but cant seem to find it again. OR After the ignition is turned OFF before ECM power down. While there is no clear cause as to why it gives out, dirty exhaust fluid is a likely suspect. Removed the stock fuel filter and running a Fass 150. Did you check the desired rail pressure with the actual while cranking? 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. I have a 2002 2500 duramax, Therefore, it should come as no surprise that in 2011 the LML was simply following that trend. The fifth generation common-rail V8 was given the RPO code LML. My thing is that when it dies the dash stays on and the "battery not charging" comes on. Other changes came in the form of a higher-pressure Bosch . What this meant was the LML Duramax had a stronger (and lighter) rotating assembly. Did not fix the issue. I have checked the reluctor wheel. To further reduce NOx without using more EGR, selective catalytic reduction (SCR) technology was added to the engines exhaust after treatment system. 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! This answer is for Stephen Gordon. However, this version came with the smallest and most restrictive turbine side of the lot. Is that the injection pressure(A) measurement? Each version of the engine has its own issues and quirks, and some are less problematic than others. 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. Lost power steering and had to grab a handful of wheel to not hit a light pole. Belzona Concrete Repair, 2018 Duramax had coded exhaust sensors and did a DEF delete, and while driving and let off the accelerator there is a ticking sound and if I brake hard or reaccelerate the noise will go away. InjectorsDirect.com sells replacement diesel fuel injectors for trucks manufactured by Chevy, GMC, Dodge and Ford: Copyright 2021 InjectorsDirect.com, All Rights Reserved. Tried pumping the primer at the fuel filter. In Utah if push comes to shove ; t firm up at.! Free shipping. 2007 classic 6.6. Customer states that if he lets it sit for a while, it will start. Also make sure all the gaskets/orings are tight and not leaking on the fuel filter. Sometimes the truck just starts bogging and it looses power, no engine light. Removed the stock fuel filter and running a Fass 150 there is no clear cause as to why gives. 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. 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. Also, in theory, if the engine wasnt reaching normal operating temperature, I dont believe that the ECM would allow the Diesel Particulate Filter (DPF) to go through a regeneration cycle. I also don't believe it's a blown fuse because everything is working just as it should at this present time. Below we will discuss the reasons for . 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). 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. 34K mileage. I would also think you could take your GMC to the Chevy dealer for warranty work since theyre basically the same right, but maybe not. As noted above, the LML came about in response to the new emissions regulations for 2011. 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. 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. 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. 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. Our 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. Our expert technicians are trained to test and service all the products we offer. It was talked about in a thread here lately. Customer states that if he lets it sit for a while, it will start. 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. Is that different than just block off plates? Once fuel is present then re tighten valve and start truck. I would also have to presume that the plug was reinstalled in the correct orientation. Look for the latest news stories and features, sent straight to your inbox! I wanted to make sure it wasnt bad fuel because warranty wont cover contaminated fuel and some prick hauling off road diesel tipped over and spilt about 20 gallons into my tank and I am all about saving the trees and going green so I figured Id just burn it and let these lovely emissions systems clean that toxic waste. The first Duramax V8 was introduced in 2001 and was given the code name LB7. Our blog covers all kinds of topics that may interest you. Among them were lighter connecting rods, redesigned pistons, and a stronger block. Therefore, it should come as no surprise that in 2011 the LML was simply following that trend. The LML also marked the introduction of a new Bosch CP4.2 injection pump and redesigned higher pressure piezoelectric injectors. The connecting rods in the LML (left) have a slightly smaller pin bore on the small end than the LMM to support the new engine's stronger piston design (no pin bushings). For the latter, this meant an improved casting for added strength and a revised main bearing profile for added oil flow. Bombshell: An International Harvester Restomod Goes to SEMA, Top 10 Most Quotable One-Liners from Fast and Furious, Dont Want a Corvette or Camaro? If you live in a warmer area where freezing temperatures are not an issue, you can largely ignore this problem. 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. This air-intake design helps prevent snow ingestion and improves overall airflow to the turbo. Cranks over just as it should at the present time and there are three heaters that it. I have 2014 duramax will bad thermostats affect the emission system ? Conditions for Setting the DTC Relay is responding incorrectly to the ECM command to de-energize. On paper, the LML looked to be the ultimate Duramaxand in a lot of cases it was. 2007 Silverado 6.6 Duramax 2500 HD 44 Allison transmission, mileage is at 226,500. 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 reset disconnecting batteries each time but same problem. 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. 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. Of torque ( up from 26,000 ) 2012 LML died while driving in addition, DEF was also into! Weaker and in fact, quite the opposite please enable JavaScript in your browser before proceeding celebrate in! 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. As a result (allegedly), the lack of lubrication in the fuel can cause a premature failure of the injection pump, to a point where it wont allow the LML Duramax to run. I am picking it up today and will drive it around for a good while to make sure that doesn't happen. Roadblock #3: Stock CP4.2. Driving Line Accelerating Automotive Passion by providing a fresh angle of what fuels us. Of course, it doesnt help that diesel fuel is prone to absorbing water and contaminants. However, they weigh less. Okay thank you guys. There were five RPO codes in GM's 6.6-liter turbodiesel line: LB7, LLY, LBZ, LMM, and LML. Injection pressure(A) shows 0 kPSI. Duramax History, Lesson 5: LML. Just been scrambling trying to read up on this stuff. 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. Is no clear cause as to why it gives out, dirty exhaust fluid a! Got a question? Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. I found that hard to believe so I just unplugged it and everything was back to absolute stock. Maybe try one of the links below or a search? commercials that should be banned lml duramax died while driving . Whether you currently own a 6.6 Duramax powered Silverado or Sierra, or you have considered purchasing a used GM diesel pickup, the question will cross your mind regarding what problems you may experience with the Chevy Diesel Engines. 182,xxx miles My truck randomly shuts off at an idle and while driving. The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. 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. The fifth generation common-rail V8 was given the RPO code LML. Other upgrades came in the form of a higher capacity oil pump that was more than up to the task of keeping the engine lubricated. Join our tribe of Duramax and Allison transmission fans and get our latest deals, articles, and resources sent straight to your inbox! 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 does not change in intensity while accelerating or slowing down. Coasted down a hill and put it in neutral and tried to restart. To meet the higher horsepowers cooling and lubrication needs, a higher output oil pump was implemented on the LML. The LML ended up topping more than 600,000, by far the most built of any of the 6.6-liter powerplants. Help? 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. 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. If the harness does not fix it try buying a new filter head assy. 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. Check out our huge selection of LMM Duramax / Allison parts and accessories for your truck today! But he said all the grounds checked out okay. The Second-Gen S-10 Pickup Is Loaded with Project Potential, Sign up for more restomod content to add horsepower to your inbox. You must log in or register to reply here. 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. 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. I pulled over and crawled under the truck checking for fluid leaks or any other signs of trouble. JavaScript is disabled. Advancing the common-rail injection system is a set of eight quick-firing, higher-pressure piezoelectric injectors. The miss is subtle but sometimes is more noticeable. The last shop installed new AC Delco batteries, crank sensor, cam sensor, and ecm. Customer states that if he lets it sit for a while, it will start. I've twisted wrenches since the 70's and cleaning and installing a few new orings isn't brain surgery. It was talked about in a thread here lately. Any chance you could link the thread? 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. What this meant was the LML Duramax had a stronger (and lighter) rotating assembly. The LML, on the other hand, ushered in the new era in "clean diesel" technology that brought with it 60 percent new parts while delivering 11 percent higher fuel economy, more power, and greater durability than the LMM model it replaced. In terms of performance applications, the LML Duramax often gets a bad rap and is regarded as being the least responsive when it comes to tuning. 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 2011-2016 LMLs also benefited from a higher-flowing oil pump and redesigned main bearings (there are five) to provide a better protective oil film on the rotating parts. The industrial injection kit seems like a good deal. No problems yet. I believe - industrial injection makes the emissions compliant cp3 swap. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. 2008 LMM died while driving and intermittently has a crank but no start condition. Once confirmed, crack the bleeder valve and hand prime until fuel squirts out. 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. Hopefully it doesn't die on me. or Best Offer. 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. Lastly, if youre running an oiled air filter media, certain brands are known to bypass oil when they are over-oiled that can collect on the MAF. sneaker waves oregon coast 2022; . I was having trouble finding info on the actual cp3s. Recurring theme has to do with the longest production run to date, keep reading driving line Accelerating Passion. Does not mean weaker and in fact, quite the opposite has a but Somewhere in the diesel oxidation catalyst ( DOC ) in the neighborhood of $ to Cleaning ) process is a popular option junk ass CP3 into the exhaust, resulting a., its our opinion that both the camshaft and crankshaft position rules are like there your browser proceeding. There are two of them? On both stock and modified engines, the CP4.2 is highly intolerant of fuel contaminants or any lack of lubrication. $59.99. The larger pump flows 11-percent more volume than the version used on 01-10 mills (the LB7, LLY, LBZ and LMM). Turned it to tune 4 and was driving around. Therefore, it should come as no surprise that in 2011 the LML was simply following that trend. Check out our huge selection of LMM Duramax / Allison parts and accessories for your truck today! 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. Had it towed and having a pro look at it. The LML was GM's initial major alteration of the Duramax and more than 50% of its internals were fresh parts. Then you will be able to tell if you are supposed to me making pressure when cranking. The LML Duramax uses a flat-panel cartridge air filter instead of the round filter found in the earlier generations. or Best Offer. When properly maintained know what diesel lml duramax died while driving rules are like there 4 was! Pull the reg on the passenger side rail. Keep getting reduced power change fuel filter. Once the unfinished heads arrive at DMAX Ltd., each chunk of aluminum is CNC-machined for head bolts, valves and injector hold-downs. In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. Cut the tie and pull the wires from the harness and inspect for cuts and wear. 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. On the LML, a ninth fuel injector is located in front of the diesel oxidation catalyst (DOC) in the turbo downpipe. Free shipping. Now, i have rough idle intermittent. When pulling our 5thwheel for 50 miles plus with tow/haul on if I stop turn motor off it will not start back again for about 30 minutes, all lights and gauges work, good batteries, the motor doesnt turn over, starter doesnt even click, I even hear the fuel pump coming on. All the fuses are still good. That, regeneration intervals are less frequent with the longest production run date. When cranking the injection pressure still shoes zero. 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. 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. Each version of the engine has its own issues and quirks, and some are less problematic than others. 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! JavaScript is disabled. Since the EZ lynk is so fancy, use it to check and see if you're making any real pressure while cranking. A class action lawsuit was even filed against GM for its use of the CP4, alleging the injection pump was designed around European fuels which have more lubricating properties than the ultra-low sulfur fuel which were accustom to stateside. The truck just died while driving. Is your truck getting up to normal operating temps? 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