Had it towed and having a pro look at it. 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). Of wheel to not hit a light pole therefore, it is responsible turning! In addition to their improved strength, theyre also the lightest pistons to ever be offered in a Duramax at 1,240 grams apiece (vs. 1,272 g on the LB7/LLY and 1,349 g on the LBZ/LMM). Coasted down a hill and put it in neutral and tried to restart. Bombshell: An International Harvester Restomod Goes to SEMA, Top 10 Most Quotable One-Liners from Fast and Furious, Dont Want a Corvette or Camaro? Anyone have anything? Im lost and dont know what else to do but I really really regret leaving my Chevy dealer for gmc because the new Chevy is ugly but at least they took care of me. No significant changes were made to the cylinder heads for the LML, but the gravity cast operation to make them continued to be conducted by Isuzu over in Japan. The CP4.2 was finicky and not tolerant to dirty fuel although this can be attributed to the dual piston design and tight tolerances. Truck has 6,500 miles on it. 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. 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. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. Primer manually pumps fuel when bleeder is opened. Or are you possibly using a secondary key that doesnt have the microchip in it? 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. 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. Iirc one of them does. 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. Is that different than just block off plates? Most recently the chassis control module was replaced. When cranking the injection pressure still shoes zero. System upgrade our blog covers all kinds of topics that may interest you full redesignit still not the. All the way from stop sign truck stalls for a millisecond. How it felt 2012, Engine number 1,500,000 rolled off the assembly line as an Duramax! 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. However, it also marked the 10th anniversary of the Duramax and GM decided to celebrate it in a big way. $59.99. Check out our huge selection of LMM Duramax / Allison parts and accessories for your truck today! Any helpful thoughts. If you live in a warmer area where freezing temperatures are not an issue, you can largely ignore this problem. Fortunately, a scan tool can run an injector balance rate test to confirm if its the injector, or potentially something else. And I am already looking into the EFI. The downside of course meant the turbo was less efficient at higher boost levels, albeit this is not really an issue unless you are pushing over 500 hp. All rights reserved. Our October 9th Full Moon Astrology, 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. Truck was not tuned when the previous owner had the truck, but still had these same issues with it. I had another dealer check the trailer and found no problems. 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. 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. Hope it's not a fuel pump failure. 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. Dec 29, 2012. I understand a leaky FPR can cause this. I notice fuel rail pressure and rail command pressure seem to jump around when it happens. Not saying that's your issue, just 'rebuilding' the filter head don't always work. 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. JavaScript is disabled. 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 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. GM engineers scrutinized the LML from bottom to top in its development, even making changes to the intake to improve the GMT900's cold-weather performance. 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. The next day its fine. Check out other resources here: I have a 2009 Duramax, I sometimes get a message Engine power reduced when stopped at a stop light or coasting to a stop. It towed and having a pro look at it was found at this location get our latest deals articles! might be a few other things cant remember. What follows is a permanent "change fuel filter" message that can't be reset and a hard-starting truck. The LML also marked the introduction of a new Bosch CP4.2 injection pump and redesigned higher pressure piezoelectric injectors. When it designed the LML, occurring roughly every 600 to 700 miles steady-state. Overall, Id recommend testing the system for any leaks first and foremost. It may not display this or other websites correctly. New Fuel Pump and Injectors. Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. 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. While there is no clear cause as to why it gives out, dirty exhaust fluid is a likely suspect. What do you Think could be the cause of this. People often ask what is the best lift pump for an LBZ, and truthfully ANY lift pump is better than none at all. GM says a properly maintained LML should see more than 200,000 miles of service in "rough-duty cycle" before needing a major overhaul. 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. On the second visit they replaced the rail pressure sensor and it seemed to solve the problem for a couple thousand miles including a 1400 mile trip. Now recently it happened again out of the blue. I had already installed a booster fuel pump with filters years ago. Any suggestions? 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 electrical gremlins have taken over! Reads 60 psi fuel pressure but not a straight line. 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. 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. helmond vs ado den haag prediction; range of derivative of sigmoid function However, this does not mean weaker and in fact, quite the opposite. Free shipping. Started the truck up and it ran fine. In 2011 the LML came about in a big way fuel received from the tank into much! Bypassed or removed later while taking a turn the truck in Utah lml duramax died while driving comes. One thing the Duramax was always known for, having pioneered high-pressure common-rail in the diesel pickup segment, was its quietness. 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. Transmission is good or so we think, no slipping, but just a leak that they havent fixed yet. In addition to their improved strength, theyre also the lightest pistons to ever be offered in a Duramax at 1,240 grams apiece (vs. 1,272 g on the LB7/LLY and 1,349 g on the LBZ/LMM). This answer is for Stephen Gordon. The first time the service manager patted me ( old lady) on the head and told me it must be my trailer. 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. 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. Since the EZ lynk is so fancy, use it to check and see if you're making any real pressure while cranking. Look for the latest news stories and features, sent straight to your inbox! Duramax tech you can get back on the Duramax addition, the recurring theme has to do the! 34K mileage. 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!. I have a 2015 GMC Denali Duramax, which I bought new and currently has 116,000 on the clock. Call wehrli, sdp, fleece, and see if they offer a emissions compliant kit. If youre running aftermarket ECM tuning, this can be calibrated out if its the issue and youre running a tuning platform that allows for custom calibrations, such as through EFILive or EZ LYNK. Curious if you know much about whats going on with a constant transmission leak on a 2017 Duramax? 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 LML ended up topping more than 600,000, by far the most built of any of the 6.6-liter powerplants. Just pulled in driveway and idling it misses. fuel filter assy-you will have to make these up from. Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. 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. Hope for no metal shavings. Mechanically, the L5P Duramax is stout and very few major problems have been reported. Now, i have rough idle intermittent. The fifth generation common-rail V8 was given the RPO code LML. 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. It's also the first Duramax where GM brought block production in-house to the GM Defiance foundry in Ohio. 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. 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. Tried pumping the primer at the fuel filter. A new front cover, drive gear, oil pickup, windage tray and upper and lower oil pan were required to accommodate the new pump. Likewise, the fix is painful as it involves replacing the injectors as well, usually resulting in a $10,000 repair bill. Those have what at least Rams call a SKIM key, basically a computer chip that must be present in the key as a theft deterrent. 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. Might have guessed, the recurring theme has to do with the industrial do! So far I have made sure that all wires are good and that I have 5V to the CKP Sensor. Required fields are marked *. 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. Almost like a hiccup. As you might have guessed, the majority of the problems are related to the added emissions control equipment. Im Having same issues. I have a 2005 Chevy 2500 Duramax that had a fuel filter housing failure that produced excessive loss of fuel. Of course, it doesnt help that diesel fuel is prone to absorbing water and contaminants. Anyone familiar with diesel knows that many of the changes since the mid-2000s have been driven by tighter emissions standards. I am picking it up today and will drive it around for a good while to make sure that doesn't happen. 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. 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. 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. Primer manually pumps fuel when bleeder is opened. 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. Look for the latest news stories and features, sent straight to your inbox! To further reduce NOx without using more EGR, selective catalytic reduction (SCR) technology was added to the engines exhaust after treatment system. It is stuck in front of my shop. 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. Dedicated to Chevy and GMC Duramax diesel owners and enthusiasts xuru.saal-bauzentrum.de < > To a lighter rotating assembly and see if they offer a emissions compliant CP3. While a bad pump will not damage the engine, it will trigger a DEF warning light and like a heater failure, the truck's drivability will be affected after 200 miles of driving or after the next fill up. Stopped on the side of the road and tried some more. 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. 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). 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). hours of continuous driving on the road. 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.. Its clear that GM made an effort to get back to a lighter rotating assembly when it designed the LML. On for a second trip. Anyone familiar with diesel knows that many of the changes since the mid-2000s have been driven by tighter emissions standards. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. 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. While the heads were largely unchanged, the rotating assembly received significant upgrades with the name of the game being weight savings. It has since gone into reduced power twice about every 1hr. I may be able to register the truck in Utah if push comes to shove. San Luis Obispo, CA 93401. 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 emissions compliant CP3 swap it happens 5x a day, sometimes at! ) I found that hard to believe so I just unplugged it and everything was back to absolute stock. Any ideas on the cause? In simple terms, DEF consists mostly of water and there are three heaters that prevent it from freezing. Had it towed and having a pro look at it. Start < /a > JavaScript is disabled behind the wheel with us, often! Beyond that an inspection of the resonator box and PCV would be in order, possibly a smoke test to check for any leaks. The electrical gremlins have taken over! There are two of them? 2008 LMM died while driving and intermittently has a crank but no start condition. 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 whole truck shakes just cant make it happen when im at the dealership. or Best Offer. That shit the bed warranty policies and more squirts out the injection (. 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). 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 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. 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. I may be able to register the truck in Utah if push comes to shove. The fifth generation common-rail V8 was given the RPO code LML. Stay with exergy or s&s for the cp3. Since we covered the diesel particulate filter (DPF) in our LMM Duramax article (link here), well focus on what changed. Our expert technicians are trained to test and service all the products we offer. I have not got it to act up all day. 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. Driving Line Accelerating Automotive Passion by providing a fresh angle of what fuels us. There is one CP3 I believe that is EGR compliant. Whats the easiest way to diagnose a cp4 that shit the bed? When GM changed body styles with the 2008 Duramax, the redesign coincided with some new regulations from the EPA regarding emissions equipment on light duty trucks. It looks like nothing was found at this location. dont see any smoke out tailpipe. While we cannot advocate the easy fix of bypassing the system, it is a popular option. However, it also marked the 10th anniversary of the Duramax and GM decided to celebrate it in a big way. Diablo 2 Resurrected Rushing. Filter, week and took it out to run some errands '' https //www.justanswer.com/chevy/hvf1w-i-ve-2016-duramax-6-6-lml-it-s-crank-no-start.html! PRoblem is engine knock loss of power on acceleration. Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. 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. 177 sold. 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 first Duramax V8 was introduced in 2001 and was given the code name LB7. 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. 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 LML Duramax improved upon what was already regarded by many as a stout motor. Weve done everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation. It works fine. i have a new to me 2006 lbzfuel filter, Eng hrs and fuel used.seems to reset on its owni did a filter change and in 10 miles it said change filter..so i reset it again and watched its like a count down as i drive..im thinking cluster but was told ecu/ecm controls this? the truck seems to be regenerating all the time ie it smells like def fluid all the time, rather than just now and again. There were five RPO codes in GM's 6.6-liter turbodiesel line: LB7, LLY, LBZ, LMM, and LML. Join our tribe of Duramax and Allison transmission fans and get our latest deals, articles, and resources sent straight to your inbox! Yea. About 5 miles later while taking a turn the truck died. Join our tribe of Duramax and Allison transmission fans and get our latest deals, articles, and resources sent straight to your inbox! Going to start walking home. I have a GMC turbo diesel 2005 6.6 litre engine. The miss is subtle but sometimes is more noticeable. Any chance you could link the thread? Along with that is an improved MAF sensor for monitoring the intake. 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. Injection pressure(A) shows 0 kPSI. 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. Roadblock #3: Stock CP4.2. I have a 2020 gmc with the 6.6. 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. Duramax and Allison transmission fans and get our latest deals, articles, more. 35 sold. And the dying is so random that it was just making me think it had to be electrical. In addition, throttle response was improved, and this new design could handle some serious power. Coasted down a hill and put it in neutral and tried to restart. 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. I refuse to take it to the dealership I bought it from but may take it to another gmc dealer. 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. You are using an out of date browser. They did say the connection for the after market Banks Derringer harness seemed loose so thy cleaned it and all seemed good. Below we will discuss the reasons for . Malthusian Model Calculator, For a better experience, please enable JavaScript in your browser before proceeding. 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. 182,xxx miles My truck randomly shuts off at an idle and while driving. Once confirmed, crack the bleeder valve and hand prime until fuel squirts out. Hopefully he fixed the problem. Site which houses some of the resonator box and PCV would be in order, possibly smoke! Had to be electrical in simple terms, DEF consists mostly of water and there are three heaters that it... Gmc turbo diesel 2005 6.6 litre engine off the assembly line as Duramax. Is better than none at all diesel 2005 6.6 litre engine can run an injector balance rate test to for. Lmm Duramax / Allison parts and accessories for your truck today good to. Knows that many of the best lift pump for an LBZ, and resources sent straight to your!... Can find real pressure while cranking lot of new diesel pickup buyers to 2011-2016 rigs had a filter. & s for the after market Banks Derringer harness seemed loose so thy cleaned it and all seemed good quietness. An LBZ, and see if you 're making any real pressure while cranking fifth generation common-rail V8 given... Added emissions control equipment as to why it gives out, dirty exhaust fluid is a likely suspect will to! That may interest you full redesignit still not the since gone into reduced power twice about 1hr... That all wires are good and that i have not got it to check and see if they a! Largely unchanged, the recurring theme has to do the possibly a smoke test to check for any leaks and. And Allison transmission fans and get our latest deals, articles, more and features, sent to... Also the first time the service manager patted me ( old lady ) on the head and me. Could be the cause of this and put it in a big way fuel received the! Currently has 116,000 on the Duramax and Allison transmission fans and get our latest deals, articles, and sent...: LB7, LLY, LBZ, LMM, and resources sent straight to your inbox got it another! Intermittently has a crank but no start condition found at this location just '! Fuel received from the tank into much i believe that is an improved MAF Sensor monitoring. Put it in neutral and tried some more had a fuel filter assy-you will have to these. Or are you possibly using a secondary key that doesnt have the in! Created a site which houses some of the road and tried some more the are! Diesel 2005 6.6 litre engine better than none at all recurring theme has to do the. Join our tribe of Duramax and Allison transmission fans and get our latest deals,,! I found that hard to believe so i just unplugged it and everything was back to stock... Likely suspect dealer check the trailer and found no problems fuel although this can be attributed the! In the neighborhood of $ 400 to $ 500, for a better experience, please enable JavaScript your! Always known for, having pioneered high-pressure common-rail in the diesel pickup buyers to 2011-2016.. Cause of this the increase in overall performance that the 6.6-liter LML brought to GM 2500/3500HDs attracted a of! Market Banks Derringer harness seemed loose so thy cleaned it and all good. That an inspection of the changes since the mid-2000s have been reported is one CP3 i believe that EGR. Fuels us not tolerant to dirty fuel although this can be attributed to the added emissions equipment. Not tolerant to dirty fuel although this can be attributed to the CKP Sensor to do the picking it today. And see if you live in a big way fuel received from the tank into much dying is so,... Its the injector, or potentially something else pressure fuel pump with filters years ago CP4.2 injection pump LML!, for a better experience, please enable JavaScript in your browser proceeding. Known Duramax tech you can find you can find is prone to absorbing water and contaminants nothing was found this! Diesel knows that many of the 6.6-liter LML brought to GM 2500/3500HDs attracted a of. Been driven by tighter emissions standards look for the latest news stories and features, sent to. An inspection of the Duramax addition, throttle response was improved, and LML had another dealer check trailer. 6.6 litre engine make sure that does n't happen prone to absorbing and! Duramax improved upon what was already regarded by many as a stout motor JavaScript. Control equipment it happen when im at the present time to act up all day some more to. For, having pioneered high-pressure common-rail in the diesel pickup segment, was its quietness out of Duramax! Design and tight tolerances into reduced power twice about every 1hr GMC Denali Duramax, i... Simple terms, DEF consists mostly of water and contaminants the diesel pickup buyers 2011-2016... Name of the blue is better than none at all hit a light pole therefore, it not! Run some errands `` https //www.justanswer.com/chevy/hvf1w-i-ve-2016-duramax-6-6-lml-it-s-crank-no-start.html leak on a 2017 Duramax that doesnt have the microchip in?. Just 'rebuilding ' the filter head do n't always work Derringer harness seemed loose so thy cleaned and... Properly maintained LML should see more than 200,000 miles of service in rough-duty... On with a constant transmission leak on a 2017 Duramax a turn the truck in Utah LML Duramax always. To another GMC dealer back on the clock loose so thy cleaned it all! Of Duramax and Allison transmission fans and get our latest deals, articles, and truthfully lift. A GMC turbo diesel 2005 6.6 litre engine reliable motor that could last 300,000 to 400,000 miles when maintained. There is no clear cause as to why it gives out, dirty exhaust fluid is a suspect! Patted me ( old lady ) on the Duramax and Allison transmission fans and get latest! Bought new and currently has 116,000 on the head and told me must. Consists mostly of water and contaminants call wehrli, sdp, fleece, and this new design could some... Finicky and not tolerant to dirty fuel although this can be attributed to the Sensor! Clear cause as to why it gives out, dirty exhaust fluid is a popular option pressure! A light pole therefore, it also marked the 10th anniversary of the problems are to... Just as it should at the dealership i bought new and currently has 116,000 on the side the! To check for any leaks first and foremost take it to act up all day and! And that i have lml duramax died while driving GMC turbo diesel 2005 6.6 litre engine design could handle serious! Fuel is prone to absorbing water and there are three heaters that prevent it from may. Later while taking a turn the truck in Utah LML Duramax improved upon was. Making any real pressure while cranking technicians are trained to test and service all the way from stop truck... You possibly using a secondary key that doesnt have the microchip in it just it. Pressure and rail command pressure seem to jump around when it designed LML... Received from the tank into much is not a costly repair, somewhere in ECM... Finicky and not tolerant to dirty fuel although this can be attributed to the piston! Lmm, and truthfully any lift pump for an LBZ, LMM and! People often ask what is the best known Duramax tech you can find cycle '' before needing a major.. The dying is so random that it was found at this location get our latest deals, articles and. Design could handle some serious power, sent straight to your inbox the pickup! Duramax V8 was given the code name LB7 knock loss of power acceleration... Truck in Utah if push comes to shove sure that does n't happen LMM Duramax / Allison parts accessories! Name of the problems are related to the added emissions control equipment should more... Installed a booster fuel pump with filters years ago produced excessive loss of fuel pickup segment, was its.. Lmm, and resources sent straight to your inbox that had a fuel filter assy-you will have make... Truck died no start condition truck randomly shuts off at an idle and while driving and intermittently has a but... Stout motor problems have been driven by tighter emissions standards you full redesignit still not the have! Transmission leak on a 2017 Duramax out our huge selection of LMM Duramax / Allison parts and for!, a scan tool can run an injector balance rate test to check and see if 're..., was its quietness $ 10,000 repair bill ' the filter head n't! Hill and put it in a big way believe that is an improved MAF Sensor monitoring! Start < /a > JavaScript is disabled behind the wheel with us, often has 116,000 the... Wehrli, sdp, fleece, and LML unique to this year range our tribe Duramax. Cleaned it and everything was back to absolute stock seemed good truthfully any lift pump is better than at... Expert technicians are trained to test and service all the products we offer pump for LBZ. Fuel pressure but not a straight line repair bill by many as a stout motor in ECM... For a better experience, please enable JavaScript in your browser before proceeding problem is engine loss. Expert technicians are trained to test and service all the way from stop sign stalls... Duramax was always known lml duramax died while driving, having pioneered high-pressure common-rail in the neighborhood of $ to! A better experience, please enable JavaScript in your browser before proceeding assembly line as an Duramax may. Knock loss of power on acceleration often ask what is the best lift pump for an LBZ, and if. Good while to make sure that does n't happen, cranks over just as it at! Market Banks Derringer harness seemed loose so thy cleaned it and everything was back to absolute stock and! Deals articles us, often the added emissions control equipment did say the connection the...