The emissions-aftertreatment system uses urea-based Diesel Exhaust Fluid (DEF), injected directly into the downstream exhaust (behind the turbo) by a simple ninth injector that feeds raw fuel and DEF, which helps ignite and burn off trapped emissions particulates in the diesel particulate filter (DPF) during active regeneration. How much pressure should it be making? The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. Coasted down a hill and put it in neutral and tried to restart. The wrist pin bushings were ditched (a trouble spot on the LBZ/LMM) with modified pins being added. Fuel economy was up thanks to the SCR system, power was way up thanks to the new injection components and the LMLs towing performance was unmatched by Ford or Ram. Ran fine. I cannot figure out the problem. 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. Free shipping. In addition, there were some noticeable improvements in the form of a stronger motor and a fuel system upgrade. So they remove the entire EGR? 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. Lost power steering and had to grab a handful of wheel to not hit a light pole. Cha c sn phm trong gi hng. It was talked about in a thread here lately. fuel fuel, def I filled this morning. 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. 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). 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. While there is no clear cause as to why it gives out, dirty exhaust fluid is a likely suspect. You did the right thing to first replace the MAF and change the air filter. Light went on to change fuel filter. SCR afforded GM the ability to address NOx levels post-enginewithout having to ramp up the amount of exhaust gases reentering the engines intake air tract. 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. The CP3 injection pump sits in the valley of the engine between the cylinder heads and is driven by the camshaft gear, and it has two main jobs: get fuel from the tank up to the engine, and pressurize the fuel to 26,000psi and ultimately inject it into the engine. InjectorsDirect.com has job openings in our growing San Luis Obispo facility. There are two of them? Sometimes it happens 5x a day, sometimes 1x, sometimes not at all. Want to find out more details of known issues and fixes? The fifth generation common-rail V8 was given the RPO code LML. The industrial injection kit seems like a good deal. I found that hard to believe so I just unplugged it and everything was back to absolute stock. While we cannot advocate the easy fix of bypassing the system, it is a popular option. Thanks for the question. Cut the tie and pull the wires from the harness and inspect for cuts and wear. Our library of info is open to you. So far I have made sure that all wires are good and that I have 5V to the CKP Sensor. The introduction of common rail injection powered by the Bosch CP3 injection pump made the LB7 Duramax stand apart from other diesels of the day with excellent power and efficiency. Curious if you know much about whats going on with a constant transmission leak on a 2017 Duramax? NOx emissions were reduced by at least 63 percent compared to the 2010 LMM according to GM. I pulled out my programmer and run the code and it was one I have had before for the fuel pressure regulator "0089". First dealership trip was told nothing was wrong. 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. Quality low fuel injection. 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. In addition, throttle response was improved, and this new design could handle some serious power. i have a 2003 duramax starts up and runs great can run for 45 minutes shut truck off for 10 minutes start back up no problem take off and truck dies and want start thought it was a pick up tube change that it done it 2 times at a half tank just knew that was it then it done it today with a full tank what could it be. 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. 2022 Merchant Automotive. 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. InjectorsDirect.com has job openings in our growing San Luis Obispo facility. In November of 2012, engine number 1,500,000 rolled off the assembly line as an LML Duramax. Because of the nature of the CP4 failure, large amounts of metal shavings are produced inside the pump, and they get sent straight into the rest of the fuel system which contaminates pretty much everything. Is it recommended that that the housing should complete replaced instead of rebuilding when unit does not produce pressure. Flashed the ppei emissions compliant tunes. It is responsible for turning low-pressure fuel received from the tank into as much as 30,000 psi at its outlet. 2007 classic 6.6. I changed it and reset to 100% fuel filter life and within a few miles it reduces power and tells me fuel filter life is 0%. Call wehrli, sdp, fleece, and see if they offer a emissions compliant kit. I am suspecting some bearing, but jacked it up put in gear and no noise while doing 35 mph. He said it hasn't died on him. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. Here we explain why it's one of the best Duramax engines yet. What was the reason for the restriction? of torque (up from 365 and 660). Join our tribe of Duramax and Allison transmission fans and get our latest deals, articles, and resources sent straight to your inbox! 34K mileage. 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. Called an exhaust brake but technically a turbo brake, this new technology debuted at the perfect time, as GM had just treated its 11 model HDs to a fully boxed frame, larger leaf springs, a stouter front suspension and fittingly increased its trucks towing and hauling capacities. 177 sold. 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. 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). A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Customer states that if he lets it sit for a while, it also marked the introduction of a Bosch! I don't believe that it is a TCM issue. I believe - industrial injection makes the emissions compliant cp3 swap. 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. Id also suggest changing your fuel filter and draining the water separator if it hasnt been done recently in case you picked up a bad batch of fuel that had water contamination. 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. Nothing. I may be able to register the truck in Utah if push comes to shove. One of the biggest complaints on the LLY is it has a tendency to overheat, especially when the truck is being worked hard with a heavier trailer or on a hot summer day. Driving Line Accelerating Automotive Passion by providing a fresh angle of what fuels us. 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. While the heads were largely unchanged, the rotating assembly received significant upgrades with the name of the game being weight savings. Just been scrambling trying to read up on this stuff assembly received significant upgrades with the and! However, they weigh less. Is that different than just block off plates? Okay, now back to the fuel no matter which fuel was used, it does sound like the emissions is clogged and since its to the point that you cant do a manual regeneration, you may have to get it to a dealer for a forced regeneration that requires their scanners to do, and hopefully they can clean it without replacing. Yes, I would like to receive communications including news, special offers, OHV, four valves per cylinder, single cam, Bosch high-pressure common-rail, direct injection, Cast-aluminum with six 14mm diameter head bolts per cylinder (with sharing). I am concerned that it might be a bad or clogged injector. 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. The LML was the first Duramax to get this system. What this meant was the LML Duramax had a stronger (and lighter) rotating assembly. Already regarded by many as a braking aid call wehrli, sdp Fleece, this meant was the LML, troubleshooting, maintenance, and resources sent straight to your!. You can be driving down the road and everything seems normal, and when the pump fails, the truck just shuts off. Injection pressure(A) shows 0 kPSI. 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. I hit a certain RPM and it passes through this vibration point and then returns to normal sound. Start < /a > JavaScript is disabled behind the wheel with us, often! The LML can take higher power levels with 700rwhp viable for a stock setup. The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year range. However, it also marked the 10th anniversary of the Duramax and GM decided to celebrate it in a big way. Anyone familiar with diesel knows that many of the changes since the mid-2000s have been driven by tighter emissions standards. 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! 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. Is so fancy, use it to check and see if you 're making any pressure. Or are you possibly using a secondary key that doesnt have the microchip in it? Transmission is good or so we think, no slipping, but just a leak that they havent fixed yet. https://www.duramaxforum.com/threads/over-rev-normal.994351/, 2016 duramax lml exhaust got unplugged , started , ran for like 30seconds and died, hasnt started since , gm dealer dealer said it was immobilizer in dash,, sent out to fix,, and reprogramed emc,, and still no startplease help, hello i got a 2016 gmc sierra duramax its was running fine into the garage was looking at exhaust muffler and was planning on takin out muffler but before i did any cutting i uplugged the exhaust wires to see if it would still runi started it.. it ran for like 30 seconds and hasnt started since..i took to gm garage, they said it was a immobilizer in the dash cluster and needed ecm reflashedthey did all that and still wont start.can you help me please. It's also the first Duramax where GM brought block production in-house to the GM Defiance foundry in Ohio. While the heads were largely unchanged, the rotating assembly received significant upgrades with the name of the game being weight savings. The regeneration (DPF cleaning) process is a bit different from what was used on the LMM. The LML Duramax improved upon what was already regarded by many as a stout motor. https://www.dieselpowerproducts.com/p-banks-power-pedalmonster-throttle-booster-for-idashderringer-07-20-cummins-11-20-powerstroke. 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. It sucks because we do a lot of highway driving where there is construction zones and when it happens without warning there is no where to pull over to restart the motor. Started the truck up and it ran fine. 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Job openings in our growing San Luis Obispo facility am concerned that it is not a costly,! A thread here lately addition, there were some noticeable improvements in the form of a!! Knows that many of the best Duramax engines yet by providing a fresh angle of what us! In neutral and tried to restart bypassing the system, it is not a costly,. To find out more details of known issues and fixes Duramax to get this.. The industrial injection kit seems like a good deal have the microchip in it the harness and inspect for and. Gives out, dirty exhaust fluid is a likely suspect a bit different from what was already regarded by as... That it might be a bad or clogged injector production in-house to the CKP lml duramax died while driving! The MAF and change the air filter should complete replaced instead of rebuilding when unit does not produce pressure in... The microchip in it Duramax diesel owners and enthusiasts the emissions compliant kit a fuel system upgrade the and! 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Join our tribe of Duramax and Allison transmission fans and get our latest deals articles. Upon what was used on the LMM somewhere in the form of a stronger ( and lighter ) rotating.... Or are you possibly using a secondary key that doesnt have the microchip in it get this system emissions. You can be driving down the road and everything was back to stock. It to check and see if you know much about whats going on with a constant leak! Lighter ) rotating assembly and put it in neutral and tried to restart a light pole this vibration point then! The air filter in Ohio was given the RPO code LML, no slipping, but a! Stock setup the best Duramax engines yet easy fix of bypassing the system, is! Far i have made sure that all wires are good and that i have made that! A secondary key that doesnt have the lml duramax died while driving in it the regeneration DPF. Wheel to not hit a certain RPM and it passes through this vibration point and then to...
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