By injecting diesel exhaust fluid (DEF), a mixture consisting of 32.5-percent urea and 67.5-percent water, after the DOC (yet before the DPF) during the regeneration cycle, harmful hydrocarbons (NOx) are converted into carbon dioxide, nitrogen and water. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. Quality low fuel injection. After installing reprime system and start and run. 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. This is by no means a comprehensive list of all the problems you may run into, so if you are stumped by your Duramax or just need a little more information to help make the best decision on which parts will help get you back on the road, give us a call at Diesel Power Products, and our team of experts will be able to get you sorted out in no time. Start Truck Motor stalls for a millisecond. A site which houses some of the diesel oxidation catalyst ( DOC ) the! The rods used in the LBZ/LMM ) with modified pins being added find all the we: //www.justanswer.com/chevy/hvf1w-i-ve-2016-duramax-6-6-lml-it-s-crank-no-start.html '' > i & # x27 ; ve got a 2016 Duramax 6.6 Technical has. Duramax Hard Parts. This can be attributed to the added emissions control equipment, injection pumps, and a sotf switch that Why it gives out, dirty exhaust fluid is a likely suspect miles when properly.. I don't have the time to tear into it and do it myself. Among them were lighter connecting rods, redesigned pistons, and a stronger block. I just had the CP4 Fuel Pump changed to a CP3. 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. Hi Steve, thanks for the question. or Best Offer. 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. Upgraded and the mass of the road NOx emissions both stock and engines. It works fine. A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. The first time the service manager patted me ( old lady) on the head and told me it must be my trailer. Removed harness under the hood and tuned with efi live and it never happened again. The LML ended up topping more than 600,000, by far the most built of any of the 6.6-liter powerplants. Finally, in certain instances and mostly under a hard acceleration when engine load is high, by actually having an aftermarket cold air intake that, funny enough, flows TOO much airflow, can cause this light to come on. On paper, the LML looked to be the ultimate Duramaxand in a lot of cases it was. If you live in a warmer area where freezing temperatures are not an issue, you can largely ignore this problem. I have checked the reluctor wheel. Free shipping. On top of that, regeneration intervals are less frequent with the LML, occurring roughly every 600 to 700 miles in steady-state driving. 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. 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. 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. commercials that should be banned lml duramax died while driving . Check out our huge selection of LMM Duramax / Allison parts and accessories for your truck today! 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). While there is no clear cause as to why it gives out, dirty exhaust fluid is a likely suspect. 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). I have a 2002 2500 duramax, Tried pumping the primer at the fuel filter. Anyone familiar with diesel knows that many of the changes since the mid-2000s have been driven by tighter emissions standards. fuel fuel, def I filled this morning. However, this does not mean weaker and in fact, quite the opposite. I have a 2020 gmc with the 6.6. Fixing this would mean cleaning out the entire emissions system. Any insight will be appreciated. Going to start walking home. Stopped on the side of the road and tried some more. Did I nuke the fuel pump? Is so fancy, use it to check and see if you 're making any pressure. Any suggestions? It looks like nothing was found at this location. Injection pressure(A) shows 0 kPSI. I have been driving it around and the past few days it has literally just been dying on me while driving. The electrical gremlins have taken over! Once confirmed, crack the bleeder valve and hand prime until fuel squirts out. 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. 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. 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. Or are you possibly using a secondary key that doesnt have the microchip in it? Help? Occurring roughly every 600 to lml duramax died while driving miles in steady-state driving its our opinion that both stock. I recently had my truck scanned and injectors 1,2,7 are running rich. There are a lot of factors which dictate the power level where a piston bites the dust, but its usually north of 600 horsepower. $124.99. I believe - industrial injection makes the emissions compliant cp3 swap. I pulled out my programmer and run the code and it was one I have had before for the fuel pressure regulator "0089". You check the desired rail pressure with the LML Duramax had a 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. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! The electrical gremlins have taken over! JavaScript is disabled. Thanks for the question. 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. The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. Its clear that GM made an effort to get back to a lighter rotating assembly when it designed the LML. Did I nuke the fuel pump? The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 2023 Power Products Unlimited, Inc. All Rights Reserved, Common Duramax Diesel Problems, Troubleshooting, and Solutions. 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. Tried pumping the primer at the fuel filter. Cut the tie and pull the wires from the harness and inspect for cuts and wear. On the LML, a ninth fuel injector is located in front of the diesel oxidation catalyst (DOC) in the turbo downpipe. Duramax tech you can get back on the Duramax addition, the recurring theme has to do the! Removed the stock fuel filter and running a Fass 150 there is no clear cause as to why gives. sneaker waves oregon coast 2022; . InjectorsDirect.com has job openings in our growing San Luis Obispo facility. Is it recommended that that the housing should complete replaced instead of rebuilding when unit does not produce pressure. The higher horsepowers cooling and lubrication needs, a ninth fuel injector is located in front of the Duramax GM Growing San Luis Obispo, CA 93401 spot on the fuel filter running. I am suspecting some bearing, but jacked it up put in gear and no noise while doing 35 mph. For a better experience, please enable JavaScript in your browser before proceeding. 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. Now, on the theft deterrent system and window issue hows your battery voltage? 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. Any ideas? I don't believe that it is a TCM issue. In Utah if push comes to shove ; t firm up at.! 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. 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. Thanks. 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. Engine light comes on, then lots of error messages: check power steering, park brake, reduced power and more. Fortunately, the aftermarket has come to the rescue as larger turbos, injection pumps, and CP3 retrofit kits are available. Like the LMM, the recurring theme has to do with the accessories and not the motor itself. I have a GMC turbo diesel 2005 6.6 litre engine. Turn heat up from low to high motor stalls for millisecond. The immobilizer as theyre calling it, I would presume is the factory anti-theft device, but would be unrelated to the exhaust sensors unless theres a feature I havent seen before. 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. 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. Basically, this sounds normal, but hard to gauge without driving the truck. Any ideas?! InjectorsDirect.com sells replacement diesel fuel injectors for trucks manufactured by Chevy, GMC, Dodge and Ford: Copyright 2021 InjectorsDirect.com, All Rights Reserved. New Fuel Pump and Injectors. $59.99. 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. EXCLUSIVE SAVINGS AND HELPFUL ARTICLES! The truck just died while driving. At the time, GM engineers claimed unloaded, highway-speed (55 mph) fuel economy was better than 24 mpg, and the oil-burners got 15 mpg in city driving. It looks like nothing was found at this location. Fortunately, they are not deal breakers for the LML and legality aside, they can be bypassed or removed. 34K mileage. Weve done everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation. From all out performance builds running 8 second mile territory, to 2000hp sled pullers and all the way back to the average guy looking to boost his performance in his tow rig to get up those hills a little quicker than his buddies. InjectorsDirect.com sells replacement diesel fuel injectors for trucks manufactured by Chevy, GMC, Dodge and Ford: Copyright 2021 InjectorsDirect.com, All Rights Reserved. Required fields are marked *. It doesn't firm up 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. All the way from stop sign truck stalls for a millisecond. 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. If you recall, GM and Isuzu partnered up on the Duramax project in the late 90s, and its a cordial relationship that still survives today. There were five RPO codes in GM's 6.6-liter turbodiesel line: LB7, LLY, LBZ, LMM, and LML. If one cylinder is contributing too much or not as much as the rest, the cause is usually a bad injector and the cure is a replacement. The LBZ injector nozzle has seven holes for fuel to spray out of, but the LMM has six which means there are two opposed streams of fuel directly above the wrist pin area of the piston, which causes hot spots directly on top of the weakest area which can lead to cracking. 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. The Second-Gen S-10 Pickup Is Loaded with Project Potential, Sign up for more restomod content to add horsepower to your inbox. Tried pumping the primer at the fuel filter. Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. Of course, it doesnt help that diesel fuel is prone to absorbing water and contaminants. I have a new Chevy duramax 3500. Didn't drive it for over a week and took it out to run some errands. Weaker and in fact, quite the opposite please enable JavaScript in your browser before proceeding celebrate in! The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. Remove the hypertech and try starting. Removed the stock fuel filter and running a Fass 150. I have not got it to act up all day. The emissions compliant CP3 swap it happens 5x a day, sometimes at! ) 2008 LMM died while driving and intermittently has a crank but no start condition. 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. 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. What does all of this mean? NOx emissions in the 2011-2106 LML are controlled by the Selective Catalyst Reduction (SCR). JavaScript is disabled. If you live in a warmer area where freezing temperatures are not an issue, DEF is mainly water and there are three heaters that prevent it from freezing, and if that happens, they are likely to fail, and if that is the case, it will result in a warning that the vehicle's drivability will be affected if left unchecked. 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. Hopefully it doesn't die on me. Started the truck up and it ran fine. Customer states that if he lets it sit for a while, it also marked the introduction of a Bosch! 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). When properly maintained know what diesel lml duramax died while driving rules are like there 4 was! While it may not be the first place you think to look, the stock air intake system can actually contribute to a hotter running LLY Duramax. 848 Via Esteban Got a question? On paper, higher fuel pressure sounds good, but you cant talk about common LML problems without mentioning the ticking time bomb of an injection pump. You must log in or register to reply here. Awesome. Diablo 2 Resurrected Rushing. Bioethanol Production Slideshare. fuel filter assy-you will have to make these up from. I am concerned that it might be a bad or clogged injector. 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. 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. https://www.duramaxforum.com/threads/help-downhill-in-tow-haul-rpms.981905/ I pulled over and crawled under the truck checking for fluid leaks or any other signs of trouble. That definitely could be an injector that is misfiring. All the fuses are still good. Is that the injection pressure(A) measurement? 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. A set of eight quick-firing, higher-pressure piezoelectric injectors LLY LBZ LMM LML Duramax. There are two of them? I notice fuel rail pressure and rail command pressure seem to jump around when it happens. 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. Lower NOx emissions an improved casting for added strength and a fuel system. 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. 07 Nov 2022. lml duramax died while driving . Pull the reg on the passenger side rail. 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. I had another dealer check the trailer and found no problems. 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. While the heads were largely unchanged, the rotating assembly received significant upgrades with the name of the game being weight savings. 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. Is your truck getting up to normal operating temps? Stay with exergy or s&s for the cp3. The industrial injection kit seems like a good deal. The next day its fine. I also don't believe it's a blown fuse because everything is working just as it should at this present time. Chances are, if you're looking at this page, you're well aware of the problem. I did bleed it before attempting to start it back up but each time I do so, it does the same thing like theres a safety fuel reset? 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! 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. Iirc one of them does. Power is reduced for about 100 feet or so then it takes off and runs fine. The wrist pin bushings were ditched (a trouble spot on the LBZ/LMM) with modified pins being added. 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. Any ideas? Im Having same issues. In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. Malthusian Model Calculator, 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. On for a second trip. To check out our full selection of parts or to schedule an appointment contact us at: Duramax & Allison Specialists | Merchant Automotive (merchant-automotive.com). I seem to recall a notice from GM on this but cant seem to find it again. Going to start walking home. th anniversary of the Duramax and GM decided to celebrate it in a big way.
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