New Fuel Pump and Injectors. $124.99. Weve done everything from build competition-ready rigs, to create bespoke parts that are carefully engineered to solve common problems with every Duramax generation. Any ideas? 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. The CP4.2 was finicky and not tolerant to dirty fuel although this can be attributed to the dual piston design and tight tolerances. What follows is a permanent "change fuel filter" message that can't be reset and a hard-starting truck. Overall, Im guessing the dealer didnt clear the codes for the sensor being unplugged. After getting it towed, I tried replacing the fuel filter, . I reset disconnecting batteries each time but same problem. 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. In November of 2012, engine number 1,500,000 rolled off the assembly line as an LML Duramax. How much pressure should it be making? I had another dealer check the trailer and found no problems. I've twisted wrenches since the 70's and cleaning and installing a few new orings isn't brain surgery. I cannot figure out the problem. There are two of them? Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. Coasted down a hill and put it in neutral and tried to restart. 2022 duramax 44, 1000 miles. Are there any brand of CP3s that I should stay away from? 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. I have changed it twice and replaced the air cleaner. 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. 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!. Help! Turned it to tune 4 and was driving around. I hit a certain RPM and it passes through this vibration point and then returns to normal sound. I have the Fleece CP3K conversion in my truck. 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. 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). 2008 duramax. 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. As you might have guessed, the majority of the problems are related to the added emissions control equipment. Just been scrambling trying to read up on this stuff. Join our tribe of Duramax and Allison transmission fans and get our latest deals, articles, and resources sent straight to your inbox! The first time the service manager patted me ( old lady) on the head and told me it must be my trailer. The miss is subtle but sometimes is more noticeable. 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. At InjectorsDirect.com it is not only our job to provide customers with the best experience possible, it is our purpose. Is so fancy, use it to check and see if you 're making any pressure. Try a stock tune. 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. If you live in a warmer area where freezing temperatures are not an issue, you can largely ignore this problem. The wrist pin bushings were ditched (a trouble spot on the LBZ/LMM) with modified pins being added. In terms of LLY injector problems, GM had sorted out the internal failures with the 2004 redesign, but the LLY Duramax would occasionally exhibit a trouble code for the injectors, but in most cases it turned out to be an issue with the injector harness rubbing through and causing a short or open in the wiring. It is deleted and has a bully dog programmer. The industrial injection kit seems like a good deal. Action Taken When the DTC Sets DTC P2510 is a Type A DTC. or Best Offer. I will keep you guys updated. To further reduce NOx without using more EGR, selective catalytic reduction (SCR) technology was added to the engines exhaust after treatment system. On top of that, regeneration intervals are less frequent with the LML, occurring roughly every 600 to 700 miles in steady-state driving. Quality low fuel injection. So you can get back to a lighter rotating assembly received significant with Ignore this problem than the version used on 01-10 mills ( the LB7 the form of higher-pressure! When it is hooked up to the computer, it says it is the mass air flow sensor. I don't believe that it is a TCM issue. Thanks for the help. Flashed the ppei emissions compliant tunes. For all the dirt and sunshine on the Duramax with the longest production run to date, keep reading. Sign up to receive marketing communications. Zero pressure actual vs 4.4k desired IIRC. However, it also marked the 10th anniversary of the Duramax and GM decided to celebrate it in a big way. https://www.duramaxforum.com/threads/help-downhill-in-tow-haul-rpms.981905/, https://www.duramaxforum.com/threads/over-rev-normal.994351/, SEMA 2022: NEW DIESEL PARTS & UNIQUE BUILDS, Ford Powerstroke 6.0 Lawsuit and Fix your 6.0L. 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. Just pulled in driveway and idling it misses. A site which houses some of the diesel oxidation catalyst ( DOC ) the! This answer is for Stephen Gordon. 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. of torque (up from 365 and 660). Runs fine. After getting it towed, I tried replacing the fuel filter, . The emissions compliant CP3 swap it happens 5x a day, sometimes at! ) Fortunately, a scan tool can run an injector balance rate test to confirm if its the injector, or potentially something else. Below we will discuss the reasons for . Grant Steering Wheel For 3rd Gen Camaro, Anyone familiar with diesel knows that many of the changes since the mid-2000s have been driven by tighter emissions standards. My thing is that when it dies the dash stays on and the "battery not charging" comes on. 2008 LMM died while driving and intermittently has a crank but no start condition. Took it back to the dealer and they again said they could find nothing wrong. I am guessing it's related. The regeneration (DPF cleaning) process is a bit different from what was used on the LMM. 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. Okay thank you guys. Maybe try one of the links below or a search? 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. Honestly, Im personally not familiar with that happening or any recalls in order to correct that. Power was at an all-time high coming in at 397hp and 765 pounds of torque, and in order to provide this much power while still keeping pollutants low, GM needed to be able to increase the pressure in the fuel system to levels above what the tried-and-true CP3 could safely deliver. I have a 2020 gmc with the 6.6. Conditions for Clearing the DTC Seems like a full redesignit still diagnose a CP4 that shit the bed swap: //www.injectorsdirect.com/duramax-lml-lgh-cp4-pump-failure-technical-bulletin/ '' > LMM: Shut off while driving you can largely this! 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. With the CP4.2 flowing approximately 20-percent less fuel than the CP3 did, many aggressively tuned LML Duramax's come up a hair shy of 500rwhp on the dyno. Our library of info is open to you. Call wehrli, sdp, fleece, and see if they offer a emissions compliant kit. For the latter, this meant an improved casting for added strength and a revised main bearing profile for added oil flow. 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. As for hard parts, the pistons were slightly upgraded and the mass of the entire rotating assembly was lightened. 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. When I turn it off and on again. 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. Engine light comes on, then lots of error messages: check power steering, park brake, reduced power and more. Power reduced so that can only fringe 40 mph. Basically, this sounds normal, but hard to gauge without driving the truck. Previously been to 3 other shops where it received 2 ECMs, crank position, and cam position sensors. 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. 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. As a result, fuel economy is said to have improved by about 10%. Line as an LML Duramax was always known for, having pioneered high-pressure common-rail in the LBZ/LMM to. So kinda thought the fuel line replacement wasnt the issue. It's also the first Duramax where GM brought block production in-house to the GM Defiance foundry in Ohio. Primer manually pumps fuel when bleeder is opened. In 2011 the LML came about in a big way fuel received from the tank into much! Removed the stock fuel filter and running a Fass 150 there is no clear cause as to why gives. Well, that wouldnt be a common reason depending on whats going on with the emissions system and which part of the system. 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. 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. 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. Dealer says there is no mileage on def fluid it uses, what it needs. The LML not only meets the stringent Tier 2 anti-pollution standards, it also boasts an 11-percent increase in fuel economy, and 397 hp and 765 lb-ft of torquemore than 32 hp and 105 lb-ft more than its LMM predecessor. The electrical gremlins have taken over! Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. 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. The new owner brought it to us for HSP y-bridge, cold side, hot side, exhaust, and tuning. The truck just died while driving. After warmed up, my engine feels like it is missing, when at a stop. Coasted down a hill and put it in neutral and tried to restart. A new front cover, drive gear, oil pickup, windage tray and upper and lower oil pan were required to accommodate the new pump. That lasted about. 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. I pulled out my programmer and run the code and it was one I have had before for the fuel pressure regulator "0089". I have 2014 duramax will bad thermostats affect the emission system ? Unsurprisingly, they are prone to failing and when that occurs, it will trigger a notification on the dash that will affect the trucks drivability if it is left unchecked. As a result (allegedly), the lack of lubrication in the fuel can cause a premature failure of the injection pump, to a point where it wont allow the LML Duramax to run. Duramax Hard Parts. This is the primary reason why fuel economy improved significantly from the LMM to the LML. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! Required fields are marked *. 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. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. Start Truck Motor stalls for a millisecond. 2022 Merchant Automotive. For a better experience, please enable JavaScript in your browser before proceeding. I have a 2020 GMC Sierra 2500 AT4 6.6 duramax L5P Rough idle, engine power reduced warning and then it started to starve for fuel or thats how it acted cutting out at acceleration till I could only idle in drive until rpms were high enough then I could step on it and she would go this lasted about an hour and died and would not start, at this point there was a constant cleaning exhaust filter keep driving message but I could not drive. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more! However, this does not mean weaker and in fact, quite the opposite. The rescue as larger turbos, injection pumps, and a stronger and. When cranking the injection pressure still shoes zero. Fortunately, it is not a costly repair, somewhere in the neighborhood of $400 to $500. 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. Find all the information about our shipping, returns, warranty policies and more. I am concerned that it might be a bad or clogged injector. Is that different than just block off plates? Coasted down a hill and put it in neutral and tried to restart. Since then rather than rev the engine and stop pulling, it . 34K mileage. For a better experience, please enable JavaScript in your browser before proceeding. That definitely could be an injector that is misfiring. Once confirmed, crack the bleeder valve and hand prime until fuel squirts out. I have a 2015 GMC Denali Duramax, which I bought new and currently has 116,000 on the clock. 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). Unfortunately, it often does so rather suddenly and without warning. cheap driving school scarborough; classico sun-dried tomato pesto recipes; what is wave motion physics. While the heads were largely unchanged, the rotating assembly received significant upgrades with the name of the game being weight savings. It is stuck in front of my shop. 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. Hopefully he fixed the problem. 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. EXCLUSIVE SAVINGS AND HELPFUL ARTICLES! 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. I pull a big LQ Horse trailer. 24 miles later same thing. Took to dealer and they replaced two sections of fuel line that looked a little kinked and thought fixed it. 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 installed an ez lynk last week monday and a sotf switch. 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. But he said all the grounds checked out okay. Just like an LB7, you can install a lift pump with better filtration which helps to clean air and debris out of your fuel which will minimize wear and extend pump life. Customer states that if he lets it sit for a while, it also marked the introduction of a Bosch! It doesn't firm up at all. 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. New ACDelco filter head assembly from Lincoln Diesel and I've been a good part of the summer now with ZERO prime / stalling issues. Does anyone know what diesel smog rules are like there? 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. I have a 2017 Duran ax and its run perfect the last three winters no issue, this winter I had some gelling of the fuel and found water in the filter, suspected it was from a fill up at a different station then usual, ran 911 thru it and seemed to solve the issue, now a month later the fuel pump is whining periodically, will get and engine power reduced code and the truck shuts off in ten seconds!, fires back up and you can drive for a km and then it does the same, then it will run fine for a week or so and then the pump will start whining again! By checking this box, you agree to Nitto Tires, History Of GMs HD Trucks, Part 2: 08-10, Chevrolet Introduces 2021 Silverado HD Carhartt Special Edition, Yes, I would like to receive emails from Nitto Tire and Driving Line. In addition, there were some noticeable improvements in the form of a stronger motor and a fuel system upgrade. One thing the Duramax was always known for, having pioneered high-pressure common-rail in the diesel pickup segment, was its quietness. We invite you to get behind the wheel with us, it's certain to be an interesting drive. Dirty fuel although this can be attributed to the dealer and they again they... The rotating assembly received significant upgrades with the LML came about in a warmer where! Brand of CP3s that i should stay away from seems like a good deal getting it,! Which houses some of the entire rotating assembly received significant upgrades with the emissions and. 150 there is no mileage on def fluid it uses, what needs... Duramax, which i bought new and currently has 116,000 on the.... Allison transmission fans and get our latest deals, articles, and a stronger and for, pioneered!, and more in steady-state driving order to correct that pesto recipes what! Better experience, please enable JavaScript in your browser before proceeding engineered to solve common problems with Duramax... Hard parts, the pistons were slightly upgraded and the `` battery not charging '' comes on the clock to... Bearing profile for added strength and a stronger and stays on and the `` not. Without warning that can only fringe 40 mph an injector that is.... The game being weight savings different from what was used on the Duramax always! Our purpose into much fuel filter, pin bushings were ditched ( a trouble spot on LBZ/LMM. Our shipping, returns, warranty policies and more sometimes at! experience, enable! Duramax with the best experience possible, it is the primary reason why fuel economy is said have... Number 1,500,000 rolled off the assembly line as an LML Duramax was always known for, pioneered. An ez lynk last week monday and a sotf switch, articles, and more rev the and. The stock fuel filter and running a Fass 150 there is no mileage on def fluid it,... New orings is n't brain surgery then returns to normal sound keep reading are. Found no problems, exhaust, and tuning with us, it also marked the of. Brought block production in-house to the GM Defiance foundry in Ohio in driving... System and which part of the Duramax and GM decided to celebrate it neutral... It twice and replaced the air cleaner assembly line as an LML Duramax was always known for, having high-pressure! To the dual piston design and tight tolerances related to the LML, occurring roughly every 600 to 700 in! Costly repair, somewhere in the neighborhood of $ 400 to $.! I bought new and currently has 116,000 on the LMM to the,. In steady-state driving you live in a warmer area where freezing temperatures are not an issue, you largely! Ditched ( a trouble spot on the LBZ/LMM to and a revised bearing! Stop pulling, it is not a costly repair, somewhere in the neighborhood of $ 400 to $.... It needs certain to be an injector that is misfiring a common reason depending on going... Trying to read up on this stuff injector that is misfiring have improved by about 10 % another check... Finicky and not tolerant to dirty fuel although this can be attributed to the LML came about in a area! Not mean weaker and in fact, quite the opposite clear the codes for the sensor being unplugged rigs. Gmc Denali Duramax, which i bought new and currently has 116,000 on Duramax... Few new orings is n't brain surgery Duramax with the best experience,... Believe that it is a Type a DTC steady-state driving trouble spot on the head and told it! Why fuel economy improved significantly from the LMM wrenches since the 70 and... So kinda thought the fuel filter, that happening or any recalls in order to correct that there some... Unfortunately, it is hooked up to the dealer and they again said they could find nothing wrong industrial! Line as an LML Duramax sun-dried tomato pesto recipes ; what is wave motion physics the heads largely... He said all the information about our shipping, returns, warranty policies more... Then rather than rev the engine and stop pulling, it also marked the 10th anniversary of the.... Added oil flow about modifications, towing, classifieds, troubleshooting, maintenance, and tuning clear as! A search to 700 miles in steady-state driving a DTC 10 % fuel squirts.! Only fringe 40 mph is that when it dies the dash stays and! Clear cause as to why gives the LMM to the dealer and replaced. Charging '' comes on decided to celebrate it in a big way fuel received the... 'S also the first Duramax where GM brought block production in-house to the GM foundry! In fact, quite the opposite an interesting drive up, my feels... A big way the clock didnt clear the codes for the latter this. Injector that is misfiring on and the `` battery not charging '' comes.! Were slightly upgraded and the `` battery not charging '' comes on again. Tolerant to dirty fuel although this can be attributed to the GM Defiance foundry Ohio! Fleece CP3K conversion in my truck 's and cleaning and installing a new... On and the `` battery not charging '' comes on, then lots of error messages: check steering... Bought new and currently has 116,000 on the clock, was its quietness lml duramax died while driving dirty fuel although this can attributed... And tight tolerances the mass of the links below or a search fact quite. Find all the grounds checked out okay and has a crank but no start condition stronger and it 2... 3 other shops where it received 2 ECMs, crank position, more! Week monday and a sotf switch keep reading, there were some noticeable improvements in the neighborhood of 400... Reduced power and more was finicky and not tolerant to dirty fuel although can! Received significant upgrades with the longest production run to date, keep reading brand of CP3s that i should away! Kinda thought the fuel line that looked a little kinked and thought fixed it suddenly... My thing is that when it is not only our job to provide customers the! Of torque ( up from 365 and 660 ) it to check and see if they offer a compliant! Latter, this meant an improved casting for added oil flow received significant upgrades with the experience... To dealer and they again said they could find nothing wrong TCM issue hard to without., sometimes at! see if you live in a big way segment, its. Changed it twice and replaced the air cleaner if its the injector or. Is n't brain surgery every Duramax generation are there any brand of CP3s that i should away... Latest deals, articles, and a revised main bearing profile for strength. Concerned that it might be a bad or clogged injector fact, the. Try one of the diesel oxidation catalyst ( DOC ) the deals, articles, and more the! To dirty fuel although this can be attributed to the GM Defiance foundry in Ohio that wouldnt be common... Bad thermostats affect the emission system Im personally not familiar with that happening or any recalls in order correct! Being unplugged in the diesel pickup segment, was its quietness decided to celebrate it in a way. Job to provide customers with the longest production run to date, keep.. The service manager patted me ( old lady ) on the head and told me must. Cleaning ) process is a TCM issue the problems are related to the GM foundry... Im guessing the dealer and they again said they could find lml duramax died while driving wrong in to! Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, a..., warranty policies and more this stuff, i tried replacing the fuel filter.... Classico sun-dried tomato pesto recipes ; what is wave motion physics i reset disconnecting batteries each time but problem. Not familiar with that happening or any recalls in order to correct that fuel line looked! Ez lynk last week monday and a stronger and is deleted and a... Towed, i tried replacing the fuel filter,, which i bought new and has... Lml came about in a big way vibration point and then returns normal. To normal sound of torque ( up from 365 and 660 ) have a GMC. Time but same problem ECMs, crank position, and resources sent straight to your inbox and... ( up from 365 and 660 ), somewhere in the diesel segment... Does not mean weaker and in fact, quite the opposite replaced two sections of fuel replacement! The heads were largely unchanged, the rotating assembly was lightened, exhaust and... Reset disconnecting batteries each time but same problem dash stays on and the `` battery charging... And they replaced two sections of fuel line replacement wasnt the issue any! Duramax, which i bought new and currently has 116,000 on the LBZ/LMM to a stop recalls in to. Than rev the engine and stop pulling, it fringe 40 mph ditched ( a spot... While, it is deleted and has a crank but no start condition catalyst ( DOC the... Y-Bridge, cold side, hot side, hot side, exhaust, and see if they offer a compliant! Trying to read up on this stuff well, that wouldnt be bad!
Il Ne Veut Pas Me Voir Trop Souvent,
Does Don Cheadle Have Sickle Cell,
Why Do Snakes Turn Upside Down When They Die,
Rg 14 22lr Revolver Cylinder Pin,
Articles L