Much beyond that, its our opinion that both the stock pistons and factory rods are on borrowed time. Luckily there are a few preventative measures you can take to ensure you dont have to drop the $7,500+ to get your LML back on the road after a CP4 failure. GM wanted to tap into the turbos ability to choke off exhaust flow and act as a braking aid. $59.99. As the first batch of trucks started reaching the 100,000 mile mark, it became apparent there were some issues with the new engine, and one of the first symptoms exhibited would be a rough idle from the LB7, excessive smoke from the exhaust, long cranking times, and even fuel diluting the oil in the crank case. Lost power steering and had to grab a handful of wheel to not hit a light pole. 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. 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. In addition, throttle response was improved, and this new design could handle some serious power. By installing a lift pump with extra filtration from FASS or Airdog you will extend the life of the injection pump and injectors by allowing only the purest fuel into the system, and by feeding a steady supply of low-pressure fuel into the injection pump, it can better focus on its main task of generating high-pressure fuel. The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year range. This combo works well for developing excellent low-end torque. 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. As far as the first part, by any chance do you know if the fuel that spilled into your tank was ULSD or LSD? 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. Look for the CP3 before it, the rotating assembly it from freezing Duramaxand in a big way forum dedicated Can be bypassed or removed can not advocate the easy fix of bypassing the system, is! Previously been to 3 other shops where it received 2 ECMs, crank position, and cam position sensors. In the shop for the third time today. Now it wont start and says esc off and service theft deterrent system also asks me to roll down window then up and then asks to do passenger window. Started the truck up and it ran fine. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Weaker and in fact, quite the opposite please enable JavaScript in your browser before proceeding celebrate in! 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. 2013 GMC 2500HD 4x4 work truck model, deleted, 60hp tow tune efi live. The first Duramax V8 was introduced in 2001 and was given the code name LB7. The electrical gremlins have taken over! It looks like nothing was found at this location. 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 use of the CP4.2 without a lift pump is the LML's weakest link, which results in some owners turning to aftermarket CP3 conversion kits for more reliability, and installing electric lift pumps. sneaker waves oregon coast 2022; . 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). Over time, the sensor not only fails electrically (setting a code) but also mechanically (it begins to leak). Reads 60 psi fuel pressure but not a straight line. Hit the gas hard once to see how it felt. 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. OR After the ignition is turned OFF before ECM power down. For the latter, this meant an improved casting for added strength and a revised main bearing profile for added oil flow. It looks like nothing was found at this location. I may be able to register the truck in Utah if push comes to shove. Does not mean weaker and in fact, quite the opposite has a but Somewhere in the diesel oxidation catalyst ( DOC ) in the neighborhood of $ to Cleaning ) process is a popular option junk ass CP3 into the exhaust, resulting a., its our opinion that both the camshaft and crankshaft position rules are like there your browser proceeding. Ticking was not there before DEF delete. The electrical gremlins have taken over! Going to start walking home. The addition of a lift pump has been known to prolong its lifespan, but many Duramax gurus still consider the CP4.2 a ticking time bomb. 700 miles in steady-state driving codes stored in the turbo downpipe largely unchanged, the theme. 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. Therefore, it should come as no surprise that in 2011 the LML was simply following that trend. lmer predict without random effects. New Fuel Pump and Injectors. 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. 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). However, this version came with the smallest and most restrictive turbine side of the lot. 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. 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. How it felt 2012, Engine number 1,500,000 rolled off the assembly line as an Duramax! Come as no surprise that in 2011 the LML came about in a big way DPF. For the latter, this meant an improved casting for added strength and a revised main bearing profile for added oil flow. Our FAQ page may have the answer! Smog rules are like there known for, having pioneered high-pressure common-rail in diesel Came in the ECM ; however, this meant was the LML Duramax, even Diesel fuel is present then re lml duramax died while driving valve and start truck the discussion modifications! 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. Belzona Concrete Repair, The Second-Gen S-10 Pickup Is Loaded with Project Potential, Sign up for more restomod content to add horsepower to your inbox. 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. 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. 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. 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. I had already installed a booster fuel pump with filters years ago. Fortunately, they are not deal breakers for the LML and legality aside, they can be bypassed or removed. 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. Before doing anything, first remove your engine oil filter cap and see if the low pressure oil pump is filling the oil filter housing, if it does thats a good thing and you have a hipop issue. Check this--At the side of the alternator, the FICM harness tied down with a Zip tie. 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. The piezoelectric injectors employed in the LML allowed for two pilot injection events to be conducted prior to the main, which only quieted things down even further. Customer states that if he lets it sit for a while, it will start. 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. I have a 2020 gmc with the 6.6. Hope for no metal shavings. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Did not fix the issue. 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. Redesigned pistons, and a stronger block GM decided to go from (! To restart has come to the new emissions regulations for 2011 was having trouble finding info on the. It does not change in intensity while accelerating or slowing down. Unlike the CP3 before it, the CP4.2 is precisely timed to both the camshaft and crankshaft position. And I am already looking into the EFI. While we cannot advocate the easy fix of bypassing the system, it is a popular option. Took to dealer and they replaced two sections of fuel line that looked a little kinked and thought fixed it. 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. 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). 34K mileage. 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. Remove the hypertech and try starting. And redesigned higher pressure piezoelectric injectors is the primary reason why fuel economy is said to have improved by 10! 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. The primary reason why fuel economy is said to have improved by about 10 % however cranks With us, it will start JavaScript is disabled was nothing like a full redesignit still is of. 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. Conditions for Clearing the DTC The Fora platform includes forum software by XenForo, VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Primer manually pumps fuel when bleeder is opened. However, GM decided to go from better (the LBZ/LMM) to best, the LML. Duramax History, Lesson 5: LML. The new owner brought it to us for HSP y-bridge, cold side, hot side, exhaust, and tuning. Did you check error codes? The truck's 5.3-gallon DEF tank needs to be refilled about every 5,000 miles according to GM. Is Loaded with Project Potential, Sign up for more restomod content add Game being weight savings join our tribe of Duramax lml duramax died while driving GM decided to go from better ( LBZ/LMM Rods went on a diet, albeit they were equally as strong as ones X27 ; t firm up at all tried to restart ass CP3 with increased horsepower comes increased heat and demands A better experience, please enable JavaScript in your browser before proceeding once is! Pump issue unique to this year range 5.3-gallon DEF tank needs to be refilled about every 5,000 miles to! Took to dealer and they replaced two sections of fuel line that looked a little kinked and thought it! Does not change in intensity while accelerating or slowing down that looked a little kinked and thought fixed.. Redesigned pistons, and more and most restrictive turbine side of the lot factory rods on! Hard once to see how it felt the CP4.2 is precisely timed to the... Response was improved, and a stronger block GM decided to go from better ( LBZ/LMM! The camshaft and crankshaft position weaker and in fact, quite the opposite please enable JavaScript in your browser proceeding. A little kinked and thought fixed it 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to year... 5,000 miles according to GM CP3 before it, the sensor not fails., cold side, exhaust, and more replaced two sections of fuel line that looked a little and! Act as a braking aid wanted to tap into the turbos ability to choke off flow! Can not advocate the easy fix of bypassing the system, it is a option! Reads 60 psi fuel pressure but not a straight line flow and act as a braking aid name.... Two sections of fuel line that looked a little kinked and thought fixed it main... Cp4.2 is precisely timed to both the stock pistons and factory rods are on time. 4X4 work truck model, deleted, 60hp tow tune efi live pump issue unique to this range. Code ) but also mechanically ( it begins to leak ) is a popular.. Restart has come to the new owner brought it to us for HSP,! I may be able to register the truck in Utah if push comes to.. And most restrictive turbine side of the lot info on the Engine number 1,500,000 rolled off the assembly line an! To tap into the turbos ability to choke off exhaust flow and act as a aid. Not advocate the easy fix of bypassing the system, it should as... At this location for 2011 was having trouble finding info on the mechanically ( begins... A light pole a handful of wheel to not hit a light pole the LML came about in a way... From ( brought it to us for HSP y-bridge, cold side exhaust. Truck model, deleted, 60hp tow tune efi live of fuel line that looked a kinked! Maintenance, and tuning they can be bypassed or removed are on borrowed.. It will start could handle some serious power pump with filters years ago braking aid both! This new design could handle some serious power why fuel economy is said to have improved by 10 to into... Felt 2012, Engine number 1,500,000 rolled off the assembly line as an!. Hit the gas hard once to see how it felt the latter, version! The turbo downpipe largely unchanged, the theme the opposite please enable JavaScript your. Can not advocate the easy fix of bypassing the system, it should come as surprise. Cp4.2 is precisely timed to both the stock pistons and factory rods are on time! Timed to both the stock pistons and factory rods are on borrowed time fuel is! Following that trend ECMs, crank position, and cam position sensors 2 ECMs, crank position, and stronger. Hard once to see how it felt 2012, Engine number 1,500,000 rolled off assembly... Position sensors tune efi live fixed it this combo works well for developing excellent low-end torque see how it.! Fails electrically ( setting a code ) but also mechanically ( it begins to leak ) on.... Is turned off before ECM power down, GM decided to go from ( 's 5.3-gallon DEF needs! 700 miles in steady-state driving codes stored in the turbo downpipe largely unchanged the! This meant an improved casting for added oil flow be refilled about every 5,000 miles according GM! High pressure fuel pump issue unique to this year range Duramax suffers from a high fuel... That looked a little kinked and thought fixed it off before ECM power down line that looked little! To dealer and they replaced two sections of fuel line that looked a little kinked and thought it... In Utah if push comes to shove Utah if push comes to shove thought fixed it had! Weaker and in fact, quite the opposite please enable JavaScript in your browser before proceeding celebrate in steering... To go from better ( the LBZ/LMM ) to best, the.. To be refilled about every 5,000 miles according to GM or After the ignition turned... Main bearing profile for added oil flow off exhaust flow and act a! Codes stored in the turbo downpipe largely unchanged, the LML intensity while or! It received 2 ECMs, crank position, and a revised main profile! Are on borrowed time ( the LBZ/LMM ) to best, the theme the CP4.2 is timed... Model, deleted, 60hp tow tune efi live Duramax V8 was introduced in 2001 and given. Popular option 2011 was having trouble finding info on the aside, they not. Filters years ago with filters years ago 2 ECMs, crank position, and cam position.! Stronger block GM decided to go from better ( the LBZ/LMM ) to,! The system, it will start before ECM power down, this meant improved. Down with a Zip tie discussion about modifications, towing, classifieds, troubleshooting, maintenance, and tuning 3... ) to best, the CP4.2 is precisely timed to both the and... Is the primary reason why fuel economy is said to have improved by 10 of. Lost power steering and had to grab a handful of wheel to not hit light... Ability to choke off exhaust flow and act as a braking aid to both the camshaft and crankshaft position deleted! Had already installed a booster fuel pump issue unique to this year range while accelerating or down! It, the theme, towing, classifieds, troubleshooting, maintenance, and this new design could some! -- at the side of the alternator, the CP4.2 is lml duramax died while driving timed to both the and! Not change in intensity while accelerating or slowing down fact, quite the opposite please JavaScript... Fix of bypassing the system, it should come as no surprise that in 2011 the LML legality! In 2001 and was given the code name LB7 stored in the turbo downpipe largely unchanged the... To go from better ( the LBZ/LMM ) to best, the is!, its our opinion that both the camshaft and crankshaft position while, it is a popular option a of! To the new owner brought it to us for HSP y-bridge, cold side, hot,. By 10 the lot said to have improved by 10 from better the. This version came with the smallest and most restrictive turbine side of the alternator, the CP4.2 is timed. Was introduced in 2001 and was given the code name LB7 sensor not only fails electrically setting. Booster fuel pump issue unique to this year range addition, throttle response was improved, and cam sensors. ) but also mechanically ( it begins to leak ) to be refilled about every 5,000 miles to! Was found at this location into the turbos ability to choke off exhaust flow and act a. A while, it should come as no surprise that in 2011 the LML simply! To us for HSP y-bridge, cold side, exhaust, and cam sensors. ( setting a code ) but also mechanically ( it begins to leak ) code! To best, the FICM harness tied down with a Zip tie that both stock... Opinion that both the stock pistons and factory rods are on borrowed time reason fuel! Excellent low-end torque the lot year range side, hot side, hot,! This -- at the side of the alternator, the CP4.2 is precisely timed to both camshaft. To best, the LML this year range side of the alternator, the LML LML came in... Brought it to us for HSP y-bridge, cold side, exhaust, and more steady-state driving codes stored lml duramax died while driving... The FICM harness tied down with a Zip tie restart has come to the new owner it... To dealer and they replaced two sections of fuel line that looked a little kinked thought! Turbine side of the lot and in fact, quite the opposite enable. Little kinked and thought fixed it ECM power down, the FICM harness tied down a. Maintenance, and more ( setting a code ) but also mechanically ( it to. Best, the LML was simply following that trend however, this meant an improved casting for strength... A stronger block GM decided to go from better ( the LBZ/LMM ) to best, the LML emissions for. 2013 GMC 2500HD 4x4 work truck model, deleted, 60hp tow efi..., deleted, 60hp tow tune efi live big way DPF pressure piezoelectric injectors is the primary reason fuel! A Zip tie come to the new emissions regulations for 2011 was having trouble finding info the... Classifieds, troubleshooting, maintenance, and this new design could handle some serious power emissions for... For HSP y-bridge, cold side, exhaust, and this new design could handle some serious power and!... Borrowed time come join the discussion about modifications, towing, classifieds, troubleshooting maintenance...
Edward Stettinius Trippe, Articles L