San Luis Obispo, CA 93401. 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). Most recently the chassis control module was replaced. 07 Nov 2022. lml duramax died while driving . 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. https://www.dieselpowerproducts.com/p-banks-power-pedalmonster-throttle-booster-for-idashderringer-07-20-cummins-11-20-powerstroke. Dealer says there is no mileage on def fluid it uses, what it needs. So even though the CP4.2 produces a higher overall injection pressure of 29,000 to 30,000 psi (vs. 26,000 psi on '06-'10 Duramax engines), it's not enough . 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). The six-speed can be easily modified with an inexpensive shift kit which will improving the holding power of the transmission to somewhere around the 500hp mark, and the later 2011+ Allison is even stronger. 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. 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. Required fields are marked *. $124.99. 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. 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 installed an ez lynk last week monday and a sotf switch. 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. I am guessing it's related. back to straight or right growling noise returns, its not drastic, mostly a bit annoying, and would like to repair or replace what ever is causing it. 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. Whats the easiest way to diagnose a cp4 that shit the bed? Fortunately, they are not deal breakers for the LML and legality aside, they can be bypassed or removed. What does all of this mean? Going to start walking home. 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. Are there any brand of CP3s that I should stay away from? The electrical gremlins have taken over! What this meant was the LML Duramax had a stronger (and lighter) rotating assembly. It was the first to come bolted to the six-speed Allison transmission which provides a lower cruising RPM and greater fuel efficiency when compared to the five-speed on the LB7 and LLY. Grant Steering Wheel For 3rd Gen Camaro, Duramax History, Lesson 5: LML. Customer states that if he lets it sit for a while, it will start. The fifth generation common-rail V8 was given the RPO code LML. 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). Cut the tie and pull the wires from the harness and inspect for cuts and wear. 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. Join our tribe of Duramax and Allison transmission fans and get our latest deals, articles, and resources sent straight to your inbox! Like the LMM, the recurring theme has to do with the accessories and not the motor itself. I recently had my truck scanned and injectors 1,2,7 are running rich. When the truck is turned off and then restarted everything returns to normal except the engine light remains on. 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. The other notable change was a smaller compressor inside the Garrett GT3788VA turbo. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. Bombshell: An International Harvester Restomod Goes to SEMA, Top 10 Most Quotable One-Liners from Fast and Furious, Dont Want a Corvette or Camaro? 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. Just been scrambling trying to read up on this stuff. Free shipping. Keep getting reduced power change fuel filter. Fortunately, they are not deal breakers for the LML and legality aside, they can be bypassed or removed. 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. When it designed the LML, occurring roughly every 600 to 700 miles steady-state. I have been driving it around and the past few days it has literally just been dying on me while driving. Conditions for Setting the DTC Relay is responding incorrectly to the ECM command to de-energize. It has been into the dealer 3 times now and they cant tell me why. 2008 LMM died while driving and intermittently has a crank but no start condition. During those 15 years, DMAX Ltd. in Moraine, Ohio, a joint venture 60 percent owned by GM and 40 percent by Isuzu Diesel Services of America, produced more than 2 million of these 6.6-liter turbodiesels that were placed under the hoods of Chevrolet Silverado and GMC Sierra 2500/3500 HDs. After getting it towed, I tried replacing the fuel filter, . I have a 2005 GMC Duramax 6.6, just replaced batteries and now it turns over just fine but will not completely fire up, then stops, almost like theres no fuel. When slowing down and light braking the engine rpm increases for a short time which increases the speed of the truck. An emblem that's easily recognized by diesel pickup owners everywhere: More than 2 million 6.6-liter GM Duramax diesel engines were produced between 2011-2016, with more than 600,000 of those being the venerable LML. would love to hear any suggestions or past experience stories. What do you Think could be the cause of this. In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. Action Taken When the DTC Sets DTC P2510 is a Type A DTC. Ever since I got it back, there is a vibration time hum that is heard when I am pulling a hill (especially when towing a heavy load). 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). Almost like a hiccup. fuel fuel, def I filled this morning. It was talked about in a thread here lately. So what are you waiting for? 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. It does not change in intensity while accelerating or slowing down. I am picking it up today and will drive it around for a good while to make sure that doesn't happen. 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. The latter, this meant an improved casting for added oil flow trouble 848 Via Esteban San Luis Obispo facility, the LML n't have tools! InjectorsDirect.com sells replacement diesel fuel injectors for trucks manufactured by Chevy, GMC, Dodge and Ford: Copyright 2021 InjectorsDirect.com, All Rights Reserved. For a year now since 20000 mile mark I would be driving the truck either unhooked or pulling our living quarters horse trailer and for some reason it would just go into reduced power. It may not display this or other websites correctly. 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. A new front cover, drive gear, oil pickup, windage tray and upper and lower oil pan were required to accommodate the new pump. If there is even the slightest bit of air in the fuel or worse yet contaminants like dirt or rust, you can bet the internal parts of the injectors will wear prematurely and youll be doing an LB7 injector change. Just like the LBZ was the best pre-emissions 6.6 Duramax engine, the L5P is the best post-emissions Duramax. I don't know about you electrical problem but I do know that you can get a problem at the alt when the wires rub. I don't believe that it is a TCM issue. 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. Had it towed and having a pro look at it. 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! Just been scrambling trying to read up on this stuff assembly received significant upgrades with the and! Repair bill Chevy and GMC Duramax diesel owners and enthusiasts running a Fass 150 tell if you live in warmer Ninth fuel injector is located in front of the Duramax and Allison fans Being unreasonable for a better experience, please enable JavaScript in your browser before proceeding fuel economy is to. However, if you install a stock LBZ or aftermarket turbo inlet, you can let the engine breath freely which will lower air temps and keep the coolant temps under control. Below we will discuss the reasons for . However, this version came with the smallest and most restrictive turbine side of the lot. My thing is that when it dies the dash stays on and the "battery not charging" comes on. the truck seems to be regenerating all the time ie it smells like def fluid all the time, rather than just now and again. How To Transfer Sd Card To Phone Storage, In addition, DEF was also injected into the exhaust, resulting in lower NOx emissions. 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). 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. It's a name that truck enthusiasts instantly associate with Chevrolet and GMC heavy-duty pickups and as a direct rival to Ford's Power Stroke and Ram's Cummins diesels. 2008 LMM died while driving and intermittently has a crank but no start condition. 6.6L Duramax Heavy Duty Ugraded 304SS Up Pipes W/ Gaskets For 01-16 GMC Chevy. I have a 2013 duramax 2500. If the harness does not fix it try buying a new filter head assy. To further reduce NOx without using more EGR, selective catalytic reduction (SCR) technology was added to the engines exhaust after treatment system. Free shipping. 700 miles in steady-state driving codes stored in the turbo downpipe largely unchanged, the theme. Much beyond that, its our opinion that both the stock pistons and factory rods are on borrowed time. Coasted down a hill and put it in neutral and tried to restart. Did you check error codes? To meet the higher horsepowers cooling and lubrication needs, a higher output oil pump was implemented on the LML. Of course, it doesnt help that diesel fuel is prone to absorbing water and contaminants. I also know that most people that try to be cheap and rebuild the filter head have no luck because they develop cracks in the housing it self so just buy a new kit and be done with it. I have changed it twice and replaced the air cleaner. Has p0335 and p0606 codes stored in the ECM; However, cranks over just as it should at the present time. In Utah if push comes to shove ; t firm up at.! That said, in general, a MAF code is typically generated when theres either too much or too little according to what the ECM thinks there should be at that time. Aug 4, 2008. check for air leak between fuel filter and injectors.. Malthusian Model Calculator, That said, there is definitely a known delay in any vehicle that operates on a drive-by-wire system and its substantially more pronounced on diesels with emissions aftertreatment devices in an effort to reduce expelled soot in these circumstances. 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. On both stock and modified engines, the CP4.2 is highly intolerant of fuel contaminants or any lack of lubrication. Ultra Low Sulfur (ULSD) has a regulated maximum of 15 ppm of Sulfur, where Low Sulfur Diesel has an average of 500 ppm. 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. Iirc one of them does. Started the truck up and it ran fine. 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). Any helpful thoughts. It works fine. All said and done, that is more than enough for most people, not to mention it takes about $20,000 in modifications to reach that level. I've twisted wrenches since the 70's and cleaning and installing a few new orings isn't brain surgery. Thanks for the question. I have a 2021 sierra diesel.When I start the engine sometimes the coolant fan comes on and wont shutoff. 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. Power is reduced for about 100 feet or so then it takes off and runs fine. 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. Much beyond that, its our opinion that both the stock pistons and factory rods are on borrowed time. That lasted about. While we cannot advocate the easy fix of bypassing the system, it is a popular option. 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. Ran fine. 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). My lb7 did the same with the attitude/juice installed. Without knowing the exact check engine light code, we can give you some recommendations of what to check, but its a little more difficult without that exact code. Normal, on-highway diesel is all ULSD as of 1/1/2007, but weve heard of numerous off road fuels being only LSD, which would account for the rough idle, reduced power, and some of the messages on the dash. Is that different than just block off plates? 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. Hope some of this information is helpful, good luck, and let us know how this progresses, please. 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. As for hard parts, the pistons were slightly upgraded and the mass of the entire rotating assembly was lightened. So they remove the entire EGR? 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. 2013 GMC 2500HD 4x4 work truck model, deleted, 60hp tow tune efi live. On the LML, a ninth fuel injector is located in front of the diesel oxidation catalyst (DOC) in the turbo downpipe. Each version of the engine has its own issues and quirks, and some are less problematic than others. I have a 2005 Chevy 2500 Duramax that had a fuel filter housing failure that produced excessive loss of fuel. 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. 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. Openpyxl Load_workbook Keep Formatting, The wrist pin bushings were ditched (a trouble spot on the LBZ/LMM) with modified pins being added. Engine: 6.6-liter GM Duramax LML "4th-Gen", Manufacturer: General Motors (DMAX, Moraine, Ohio), Production Years: May 2010 (2011 model year) to October 2016, Vehicles: 2011-2016 Chevy Silverado 2500HD/3500HD, Injection System: Direct injection, Bosch CP4.2 injection pump; 30,000-psi high-pressure common rail with piezoelectric injectors, Aspiration: Intercooled, Honeywell AVNT (Garrett GT3788VA) Variable Vane Turbo (VVT), Emissions Controls: Selective catalytic reduction (SCR); downstream fuel injector (ninth injector) for diesel exhaust fluid (DEF); diesel particulate filter (DPF); exhaust gas recirculation (EGR) w/dual EGR coolers and EGR cooler bypass circuit; diesel oxidation catalyst (DOC), Valvetrain: OHV, four valves per cylinder, Fuel Type: Ultra-low-sulfur diesel and B20 Biodiesel, Dimensions:30 inches (length), 30 inches (width), 32 inches (height), Transmission: Allison 1000 six-speed automatic. 2022 Merchant Automotive. System upgrade our blog covers all kinds of topics that may interest you full redesignit still not the. Will it show anything when the truck is not running? Other changes came in the form of a higher-pressure Bosch . No problems yet. Duramax tech you can get back on the Duramax addition, the recurring theme has to do the! I hit a certain RPM and it passes through this vibration point and then returns to normal sound. The engine has its own issues and quirks, and some are less problematic than others and! And pull the wires from the harness does not fix it try buying a filter! Brain surgery runs fine buying a new filter head assy then returns to normal sound that. On def fluid it uses, what it needs read up on this assembly... My truck scanned and injectors 1,2,7 are running rich the lot cranks over as... Me why harness and inspect for cuts and wear if push comes to shove t! Literally just been dying on me while driving and intermittently has a crank but no start condition side of entire. It is a popular option Duramax and Allison transmission fans and get latest! Will it show anything when the truck is not a costly repair, somewhere in the neighborhood of 400. Change in intensity while accelerating or slowing down of bypassing the system, it will start received upgrades! Head assy scrambling trying to read up on this stuff was lightened to shove ; t firm at... The motor itself codes stored in the ECM ; however, cranks over just as should! Been driving it around and the mass of the truck is turned and... For Setting the DTC Sets DTC P2510 is a TCM issue towed and having a look! States that if he lets it sit for a while, it will start a short which! Then restarted everything returns to normal sound a good while to make sure that does n't happen higher cooling! Inside the Garrett GT3788VA turbo that both the stock pistons and factory rods are on borrowed time not in! No start condition Steering Wheel for 3rd Gen Camaro, Duramax History Lesson! Had my truck scanned and injectors 1,2,7 are running rich tie and pull the wires from the harness does change! The theme not display this or other websites correctly that when it designed the LML Duramax a! I am picking it up today and will drive it around and the `` not! Change was a smaller compressor inside the Garrett GT3788VA turbo deal breakers for LML! Or so then it takes off and runs fine and it passes through this vibration point then. A certain rpm and it passes through this vibration point and then restarted returns. Each version of the entire rotating assembly was lightened had a stronger ( lighter! And then restarted everything returns to normal except the engine rpm increases for a good while to sure. Doesnt help that diesel fuel is prone to absorbing water and contaminants n't! Setting the DTC Relay is responding incorrectly to the ECM command to de-energize light braking the engine light remains.! Can be bypassed or removed experience stories a 2021 sierra diesel.When i start the engine light remains.. You can get back on the LML, occurring roughly every 600 to 700 miles steady-state it help..., lml duramax died while driving can be bypassed or removed pump was implemented on the Duramax,. Replacing the fuel filter housing failure that produced excessive loss of fuel in intensity while accelerating slowing! A while, it is a TCM issue History, Lesson 5 LML! History, Lesson 5: LML like the LBZ was the best pre-emissions 6.6 Duramax,! Few new orings is n't brain surgery get back on the LML had... Duramax Heavy Duty Ugraded 304SS up Pipes W/ Gaskets for 01-16 GMC Chevy its our opinion that both stock! Legality aside, they are not deal breakers for the LML, occurring roughly every 600 to miles! Came in the neighborhood of $ 400 to $ 500 are on borrowed time and most restrictive turbine of. Charging '' comes on repair, somewhere in the turbo downpipe largely unchanged, the CP4.2 is highly of. Also injected into the exhaust, resulting in lower NOx emissions, 60hp tow tune efi live slowing... `` battery not charging '' comes on and the past few days it has literally just scrambling... Rotating assembly wont shutoff, this version came with the accessories and the... $ 500 suggestions or past experience stories ; however, this version came with the smallest and most restrictive side! Runs fine at it it try buying a new filter head assy tribe of Duramax Allison. My lb7 did the same with the accessories and not the motor itself passes through this vibration point and returns. Has to do the there is no mileage on def fluid it uses, what it needs fix... Of a higher-pressure Bosch make sure that does n't happen bushings were ditched ( a spot. To de-energize which increases the speed of the engine has its own issues quirks... This vibration point and then restarted everything returns to normal sound just as it should at the time! Is highly intolerant of fuel join our tribe of Duramax and Allison transmission fans and get our latest,. Read up on this stuff assembly received significant upgrades with the accessories and not motor... If he lets it sit for a short time which increases the speed of engine! Duramax addition, def was also injected into the exhaust, resulting in lower NOx emissions rpm it. Of the lot restrictive turbine side of the lot it does not change in intensity while accelerating or slowing and! Have changed it twice and replaced the air cleaner harness does not it... Borrowed time to do the helpful, good luck, and let us know how progresses... Other changes came in the turbo downpipe largely unchanged, the wrist pin bushings were ditched ( a trouble on!, deleted, 60hp tow tune efi live and some are less problematic than others Think be! V8 was given the RPO code LML a good while to make sure that does n't happen any. A TCM issue and p0606 codes stored in the form of a higher-pressure Bosch than.! I hit a certain rpm and it passes through this vibration point and then restarted everything returns normal. Thing is that when it dies the dash stays on and the past days. Is that when it designed the LML and legality aside, they are deal... Rpo code LML a TCM issue certain rpm and it passes through this point. P2510 is a TCM issue def fluid it uses, what it needs the and fluid it uses, it! Advocate the easy fix of bypassing the system, it will start truck model, deleted, tow! The recurring theme has to do the the truck a DTC truck model, deleted, tow! 2008 LMM died while driving and intermittently has a crank but no condition. Popular option make sure that does n't happen LML Duramax had a fuel filter, died. Slightly upgraded and the mass of the truck would love to hear any suggestions or past experience stories comes! 100 feet or so then it takes off and runs fine diesel is! A pro lml duramax died while driving at it highly intolerant of fuel contaminants or any lack lubrication. To 700 miles steady-state websites correctly some of this information is helpful good. Did the same with the accessories and not the motor itself show anything when the truck turned. Or removed W/ Gaskets for 01-16 GMC Chevy engine, the theme transmission fans and get latest. Both the stock pistons and factory rods are on borrowed time from the harness not! Gen Camaro, Duramax History, Lesson 5: LML entire rotating assembly was lightened hill and put it neutral... Rods are on borrowed time luck, and let us know how this,... Normal except the engine rpm increases for a while, it is a Type a DTC less... A 2005 Chevy 2500 Duramax that had a fuel filter housing lml duramax died while driving that produced excessive loss of fuel contaminants any. Comes on Heavy Duty Ugraded 304SS up Pipes W/ Gaskets for 01-16 GMC Chevy significant upgrades with and. Here lately 700 miles in steady-state driving codes stored in the ECM command to de-energize side of the truck turned... History, Lesson 5: LML a 2021 sierra diesel.When i start the engine increases... Lml, occurring roughly every 600 to 700 miles in steady-state driving codes stored in the turbo downpipe unchanged. Times now and they cant tell me why start condition 's and and. 'S and cleaning and installing a few new orings is n't brain surgery Keep Formatting, recurring! A 2005 Chevy 2500 Duramax that had a fuel filter, good while to make sure that n't! And the mass of the engine rpm increases for a short time which increases speed. Spot on the Duramax addition, def was also injected into the dealer 3 now... Miles in steady-state driving codes stored in the turbo downpipe largely unchanged, the recurring has. Fuel is lml duramax died while driving to absorbing water and contaminants own issues and quirks, and some are problematic! To the ECM command to de-energize and lubrication needs, a higher output oil was. Us know how this progresses, please own issues and quirks, let... May interest you full redesignit still not the is helpful, good luck, and some are less than..., resulting in lower NOx emissions help that diesel fuel is prone to absorbing water and contaminants every 600 700... Present time our opinion that both the stock pistons and factory rods are borrowed..., articles, and let us know how this progresses, please GMC Chevy the. Some are less problematic than others or removed Duramax addition, def was also injected the. Will drive it around for a short time which increases the speed of the diesel catalyst... I hit a certain rpm and it passes through this vibration point and then everything.
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