L5p duramax regen problems When the DIC DOES display that message in the L5P, it means you have gone too long without a completed regen and the truck is going to need some more time to get one to complete properly. This year I went to Denver, CO for a 4 month IT course. This engine is capable of starting in -20°F. I removed the 2nd one and have a 3rd and final replacement sent to me by edge. At 42 grams of soot, it would then go into regen. 6L Turbo-Diesel V8 engine. It appears to in this thread in this sub-forum in the entire site. 1 6 of the ECM will perform a regeneration as soon as all the correct conditions are met. Tags Truck is a 2018 GMC 3500 6. Tim 2019 Chevy Silverado 2500 High Country L5P CC/SB S&B CAI, Banks Derringer & Pedal Monster w/iDash, Banks A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. If we had n Oct 30, 2019 · Chevy / GMC Duramax 2017+ L5P Forums. Jump to Latest 101 - 120 of 190 Posts. Aug 12, 2022 · Postings of Tech Service info for any New L5P engine issues. Jump to Latest 61 - 80 of 190 Posts. 2018 Duramax Regen Problems. Dec 8, 2021 · Welcome, I created this sub for all of us L5P owners out there. Dealer Aug 1, 2014 · I am currently having an issue with my truck where the regen process doesn't seem to be doing it's job. •67 k20 duramax thingy •72 k5 bondo bucket garbage •16 boring duramax Mar 30, 2020 · They are separate issues. It will increase at a faster rate in stop and go, Sep 30, 2021 · I noticed that my truck was regenerating quite often, in fact my engine light came on several times with an Excessive Regeneration Code. Love the trucks but was wondering if anyone had experience with any problems with this engine. Many Chevy and GMC truck owners face this situation, and I’m Aug 17, 2020 · Over on the duramax forum there isn't a ton of issues being reported. It's an absolute joy to drive, and the engine is fantastic. The L5P is the result of a streamlined "clean sheet" design process that minimizes the need for complex parts and ensures a cleaner burn. I picked up my 2018 GMC DMAX (L5P) a couple weeks ago and love it. The DPF gets plugged and causes issues down the road with frequent interrupted regens. But I also am not mechanically inclined at all so I may be way off base. Is that normal? I just test drove a new 2018 Denali that had 118 miles on the clock and the truck goes into regen during the test drive! Feb 20, 2021 · If you’re experiencing issues with your Duramax L5P’s DPF and need to force a regeneration, you’re not alone. 6L Duramax diesel engine & associated components. It has 82K on it. 1 2 of 5 Can't wait till they get update to be able to initiate a regen with it on the 2024 duramax like I could on my 2021. Jan 7, 2019 · I have a 2017 L5P with code P249D coming up. Thanks. My L5P would take roughly 20 minutes / 20 miles on rural 2 lane. Jump to Latest 221 - 237 of 237 Posts. Please keep in mind your situation may call Aug 30, 2018 · Like I'd drive for like 75-125 miles on the highway (That trip, not miles since last regen) and no regen while on the highway where it's not a big issue. I drive mainly highway and was getting on average, 20 mpg not pulling and 10. When I clear the code, it stays off until I shut the truck off and restart it. Jul 28, 2021 · 2021 L5P 3500HD SRW High Country CCSB 4wd I had a friend up in the mountains this weekend with the same issue but he was able to force a regen At the campground after limping his fifth wheel there 2016 Chevy Silverado High Country 3500 Duramax LML, Banks Idash, Airdog 4G with BD performance fuel heater, Oil Bypass Nov 25, 2024 · First GM regen trucks were introduced in 2007. 6L Engine Mar 12, 2021 · If it was, the DIC message for a regen would be there and it would tell you to keep driving. HighCountryDirtyMax · Registered. May 1, 2019 · So my truck decided to go into regen mode right when I got home, Chevy / GMC Duramax 2017+ L5P Forums. I have a 2019 Silverado 3500 Jul 10, 2023 · If the regen isn't working the soot load continues to increase and at a level gets well above what normally starts regen, then it will give a 'keep driving' notice. Jakers24; May 15, 2024; Replies 5 Views 680. (2011 was about 30, the 3. 8L Duramax diesel engine (RPO LWN) (Fig. Duramaxdiesels. First one just crapped out and almost left me stranded. You will know the regen is over when the MPG starts climbing back to normal. May 26, 2024. Sep 23, 2024 · I have a 24 L5P and see about 300ish mileage between regen-highway queen mostly hauling with the occasional pulling. Then I'd be on the last mile of my trip, like pulling into a parking lot and BAMM, into regen. 5-11mpg pulling my camper. If that doesn't work May 24, 2018 · My 2017 goes into Regen every 130 miles. Feb 20, 2021 · If you’re experiencing issues with your Duramax L5P’s DPF and need to force a regeneration, you’re not alone. The 2nd one started throwing out problem codes and the check engine light. I would guess 600 - 700 mi. If you stop, either parked or at a red light or something, the RPM at Apr 5, 2021 · Love my CTS3 on the 19 L5P. This is loosely from my memory, I don't recall all the failures. Feb 28, 2022 · L5P Silverado 2500/3500 2019 2021 Silverado 4500HD, 5500HD, 6500HD 2019 2021 L5D GMC Sierra 2017 2018 L5P be useful in diagnosing any issues. Fuel mileage is about 15 city and 18-20 highway depending how fast I need to get somewhere. Save Share my truck had issues completing a regen due to technical difficulties with some wiring that related to the ECM circuit. No problems easy to use can Apr 4, 2024 · Looking at a L5P Duramax. Distance between regen. L5P Coolant Loss / Issues. So thank you all for contributing. There is no way you could drive an Aug 16, 2017 · My 2017 Denali also has this issue during regen. Crew Cab, 6. Some info on L5p soot/Regen. Jump to Im shocked to hear an L5P with emissions issues it can help you keep tabs on a lot, including the ability to Regen when needed. 0L 2500hd rental for a week, just awful. I Sep 17, 2018 · Is anyone else having issues with the 2017 and 2018 l5p duramax? I work for a company that leased probably around 30 Silverado 3500s. I just ordered a 2018 and I didn't want to deal with this issues again. 1 3 of 7 Go to page. 0L) regens more frequently than the L5P (6. . Leak and question about my 2018 l5p duramax. Feb 14, 2017 · I watched a few GM engineering videos with Gary Arvan (Chief Duramax Engineer). May 8, 2019 · I'm having the same issue with my truck. 11 posts · Joined 2021 Add to quote; Only show this user #1 · Jul 20, 2022. This one left me temporarily stranded. Looking at May 3, 2021 · I should have added in my previous post that doing the same (mostly rural 2 lane) daily driver type duty the '21 LM2 (3. But the cab doesn't need to come off to do anything to these motors. Has anyone had this issue and if so what the solution. 🤷 May 13, 2021 · I have installed 2 Edge pulsar V3 tuners in my L5P Duramax due to failures and issues. The LML I currently own regens at 42-44 soot grams. The individual doing the video had asked Chevy directly about some minor issues he's seen with that engine. in this forum in the entire site. Sold. Regen issues, thumping sound from the motor, and a few other smaller things. Engine related discussion ONLY. Back to the dealership for another forced Regen. You can do a manual regen with it in your driveway (engine has to be warmed up/hot enough though) and you can do a mobile regen on the road. There are some though. To many vehicles to little time! How to Force Regen on Duramax l5p. 1 2 200 mile regen club:help. Very intermittent sometimes it’ll go into engine reduced power 5 times in a 20 minute drive and other times it won’t at all. Joined Jul 20, 2019 · 5 Posts #21 · Jul 24, 2019 I live in CO with hills everywhere so I think this is why I was having regen issues. 1 12 of 12 Go to page. Save Share Reply Quote Like. Oct 9, 2017 · Now the last 200 miles the truck is stuck in regen and keeps warning me to keep on driving, cleaning the exhaust filter. Jul 1, 2019 · Chevy / GMC Duramax 2017+ L5P Forums. I've stopped multiple times during a regen, as it has started and mid interval (I've noticed it goes through 3 series of burning, where it heats and gets over 1k degrees in the exhaust). 2017-19 GM T-K2 Platform Powertrain L5P EGR Issues. LM2 only takes about 11-12 miles / minutes. 12. I don’t know when the hell GM is going to get their heads out of their asses and May 4, 2019 · If they really are replacing the DEF injector to try and correct a not-completing-regen issue, you need to take it to another shop -- 2021 LM2 CC std box 4x4 ; '18 2500 L5P CCSB 4x4; '11 LML, '10 LMM and 04. Jun 13, 2017 · L5P emissions Given the number of individuals complaining just on this forum in just the past few days, there has to be a significant percentage of owners of 2017 Duramax's having problems. Never had any issues with anything since I first bought it at 120000km a year ago. 2020+ GM T1 Platform Powertrain Thougts on inulating DPF to imrove Passive The closer the hotter it will stay and thus more passive regen. So far first regen was at 380-395 miles and the smell was pretty hardcore when stopped in traffic. Really the only thing different is I am using Stanadyne fuel treatment due to Jun 8, 2011 · Definitive L5P Regen thread. Other then that, I am just driving and enjoying her plus it has a warranty if it has any issues. The LML duramax would range from 0-42 Soot Grams before a single regen. 2021 L5P Duramax. Feb 3, 2022 · l5p Duramax problems (2017,2018,2019,2020 and 2021 years) Allison 1000 Power Transmission Issues in the Duramax L5P. So this truck came to me with a miss on one cylinder and a pop out of the intake,pulled the valve cover and found the valve lash extremely loose across Jan 26, 2018 · Chevy / GMC Duramax 2017+ L5P Forums. Just needed the maf cleaned and a forced Regen for that one. Jan 3, 2024 · Chevy / GMC Duramax 2017+ L5P Forums. 19445 posts Should be no problems with the truck other than the fuel leak. I think the advantage of fewer emissions is that they can push more HP/TQ. I am very familiar with that and it does not bother me. Mar 12, 2025. 6 DMAX obviously the issue is Jul 20, 2022 · L5P Duramax problems . Which did fix it for Sep 8, 2024 · The Diesel Exhaust System and DPF Soot Accumulation August 24, 2020 The diesel exhaust system on 2017-2018 Silverado and Sierra models and 2019-2020 Silverado 2500/3500 and Sierra 2500/3500 models equipped with the 6. 6, A), I have a 2024 2500 duramax. Jump to Latest 29K views 31 replies 10 participants last post by jamesbedells Feb 19, 2025. The L5P WILL regen more often, but NOT stay in regen for as long. The L5P only goes from 0-30 Soot Grams before it regens. Jan 2, 2016 · Definitive L5P Regen thread. I figured this engine has been out for 4 years now and since it is quite different in some ways than any other Duramax, we needed our own place. Teknik812 · Registered. Simple things, like starting in the morning and idling, just idling a long time and not towing makes it regen more. I drive a lot with most of my miles being on the highway. 10mpg during regen. 2020 Sierra AT4 3500 Duramax 2018 Denali 2500HD L5P Derringer equipped 2018 Montana 3811MS Legacy 16400#2900pin. He stated the soot grams the L5P regens at is 30 soot grams. Dominic06 Discussion starter. took a buddy to Jun 20, 2022 · L5P soot problems. Everything We Know About the 2024 Duramax L5P 6. Replies 154 Views 23K. The Duramax L5P is a diesel engine used in heavy-duty trucks manufactured by General Motors. 6L Duramax L5P, 46,000 miles. 1200 miles and 4 times this has happened . my eyes burn and my face actually went numb on the last one. Any help to fix this would be appreciated. triggering extensively on the normalized regen % PID. The L5P and 10 speed is definitely Former Trucks:2019 GMC Sierra Denali Duramax 2500, 2021 GMC Denali 3500HD LB SRW L5P 2020 Buick Enclave ST 2019 Cougar 34TSB. Very very bad diesel fuel smell inside the cabin while in regen. Unfortunately, with barely 3k miles on the truck, I've had significant two issues that have required return trips to the dealer. Jul 23, 2023 · And there’s been lots of software glitches in the infotainment system, locked black screens, GPS issues, map issues, and when I’ve used the new system it seems really slow to me. Also ran an LLY for a bunch of years -2018 Silverado and Sierra models and 2019-2020 Silverado 2500/3500 and Sierra Mar 22, 2017 · 2024 L5P regen frequency. TDFDiesel. 1 I bought a 2025 GMC Sierra 1500 Denali Ultimate Duramax and overall, I love the truck. Oct 26, 2019 · You will notice it plummet by 4-6 MPG when the regen is happening. Dec 14, 2019 · I am curious how often are the L5P's suppose to go into Regen. I always abort a regen if I don't have time by letting the truck idle. Save Share I have 11k miles and I've never seen the elevated idle during a regen like on all my previous L5P trucks. Only bad when stopped. On the 6. 6L design as previous Duramax models, the L5P received nearly a dozen major improvements over the LML. So here's why I'm asking. L5P Regen Interval. 2023 LZO CC std box 4x4 Feb 3, 2011 · Been reading for a while and have learned a lot here. A week ago, I got the 'Cleaning Exhaust Filter' and 'Keep Driving Until Despite the same 6. Jump Have had problems with the DPF in the . Jump to Latest 181 - 190 of 190 Posts. I have not seen really any info on it for the L5P. I stayed 2. Issue 1 - The DEF supply line was not properly secured to the DEF Jul 31, 2021 · Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain Manual regen. Jump to Latest 21 - 40 of 95 Posts. L5P TSB (service bulletins, recalls, updates) has anyone ever had issues during a regen while driving with or without towing? May 14, 2018 · Chevy / GMC Duramax 2017+ L5P Forums. 5mi from the training location. My daily Oct 6, 2019 · Chevy / GMC Duramax 2017+ L5P Forums. Joined Sep 2, 2022 · 1 Posts #25 2019 L5P Duramax Joined Jan 13, 2024 · Oct 30, 2017 · DPF, diesel particulate filter, manual regeneration, customer regeneration will not be allowed until the DPF load percentage has reached 100% full and a driver information center (DIC) message has been shown 1 - Requires a Fleet or Government type order and (L5P) Duramax 6. 6L Duramax diesel engine (RPO L5P) (Fig. Anyone else have this issue or a 2017 Chevrolet Silverado 3500HD SRW High Country CCSB L5P Duramax Cognito May 16, 2024 · UPDATE- it has been said, not confirmed, that there are approximately 10 vehicles involvedRelease Date: May 2024 Program Effective Until: June 30, 2026 Issued by: General MotorsOverviewGeneral Motors has Aug 11, 2019 · 2017 L5P, I have one of those early mile check engine lights. Definitive L5P Regen thread. Come join the discussion Sep 22, 2022 · However, many drivers ask themselves; what causes my L5P Duramax injectors to go bad? Read on for signs of faulty L5P injectors, causes, and how you can get yourself out when you realize you have bad injectors. I noticed that when my truck regen'd it Sep 10, 2018 · Got my new 2018 Chevy 2500 L5P in mid June and ended up in reduced power after it failed to regen on my first trip over the 4th of July with less than a 1000 miles. It has has many other functions like code reading/reset, tire size adj, gages for everything just about everything and more. Jump to Latest Aug 14, 2022 · The diesel exhaust system on 2017-2018 Silverado and Sierra models and 2019-2020 Silverado 2500/3500 and Sierra 2500/3500 models equipped with the 6. 6, C); and 2017-2018 Cruze models equipped with the 1. What is a Forced Regen? A forced regeneration manually initiates the process to clean out the diesel particulate filter (DPF) and can be Nov 20, 2023 · Been searching around here and other places to see how you can force a DPF Regen on my 2023 L5P. I started using Hotshots EDT since I took the truck off the lot. Regen every tank is normal on an L5P. Jul 18, 2021 · I have a bunch of questions about getting my 2021 l5p tuned and I keep ending up with different answers from a lot of different people I talk to Go to Duramax r Stock L5P is Jul 27, 2021 · I have a 2020 L5P duramax high country currently 35k miles still under the bumper to bumper warranty. Jump to Latest 41 - 60 of 126 Posts. Save Share Mar 17, 2017 · Chevy / GMC Duramax 2017+ L5P Forums. 2020+ GM T1 Platform Powertrain 2020 Re-Gen that would let you know. Go. Camilleri; Sep 23, 2023; 19 Aug 19, 2023 · 2024 GMC Sierra 2500HD Well, 2nd time with a P2463 code in a tuck with only 2300 miles on it. Joined Mar 17, 2017 · Regen problems is anyone else having problems with too many regens or the regens not completing? Dec 28, 2021 · Chevy / GMC Duramax 2017+ L5P Forums. DO NOT IGNORE THIS MESSAGE IF IT EVER POPS UP. When moving no issue. 1 2 3. Overal impression, I really wanted a reason to get the L5p, especially with the cp4 issues with the LML, Jun 10, 2021 · Wondering if any of you l5p gurus have some failure analysis input for me. Jump to Latest 21 - 40 of 40 Posts. Chevy / GMC Duramax 2017+ L5P Forums. My 2013 Duramax did not have this problem, in that regard it was a much better Sep 21, 2021 · I am now able to tell when the regen cycle is taking place. D. gmc502. Though this can’t be listed as an actual Jun 25, 2019 · No issues with regen interval. Oct 26, 2018 · I found this old tread as I had to replace my 08 LMM due to my grandson totaling it. The L5P was nearly in a constant regen. Have been getting the p0191 code for the last year and a half. Many Chevy and GMC truck owners face this situation, and I’m here to share some tips that could help you out. Save Share Mar 2, 2023 · Definitive L5P Regen thread So far no issues with the emmisions systems but I do tow heavy from time to time and I think that does help get the system hot for a good burn. 2020+ GM T1 Platform Powertrain Manual/mobile regen on I got Banks I dash super gauge for my 22’ and I do manual mobile regen a lot. 2017-19 GM T-K2 Platform Powertrain Burning oil smell Is anyone having the issue of a burning oil smell during regen? Mine started doing it last regen. May 5, 2023 · We have a 2018 2500HD with the L5P Duramax that started throwing regen codes and put the truck in limp mode while on a trip 1400 miles from home. 1) requires an occasional Diesel Particulate Filter (DPF) cleaning. Jump to Latest 59K views 11 replies 10 participants last post by long-time-dmax May 20, 2024. 2019 Quartz Red Denali HD Chrome deleted 2013 GMC SLE fully deleated. Though I haven't conducted a manual regeneration, I've monitored plenty of self regenerations as I tow my 16k fifth wheel often while traveling for work. Around half of those Nov 22, 2019 · Everything We Know About the 2024 Duramax L5P 6. Now I know driving and idling times play a role in the frequency. i am having the same problems in my 2017 l5p duramax . Jump to Latest 21 - 40 of 43 Posts. I have an appointment to get the recall for regen ECM update done but service department said it probably wont fix the lurching issue I'm having. Knowing when the truck is in regen is extremely helpful Nov 27, 2016 · Chevy / GMC Duramax 2017+ L5P Forums. Jun 28, 2022 · I'm posting again about my 2019 GMC 2500HD Denali Duramax with excessive DEF usage. 6 duramax L5P with 146000km. I put fuel in it and go while laughing at the tree hugging dirt worshippers saving the environment by trashing fuel economy. Reactions: willydmax and CntrlCalDmax. There are several reasons why your 2018 Duramax might be having regen problems. Jump to Latest Let us know if the leak correction fixes your mileage and regen issues. Advanced Search Who knows what the operating conditions are for this function. Another L5P Regen Issue. 6L Duramax (L5P) 2018 2500HD Duramax: Very same/similar issue . duecedriver Discussion starter. Regeneration heats the exhaust (with extra fuel) to clean the soot 2017 Chevrolet Silverado 3500HD SRW High Country CCSB L5P Duramax Cognito UCA kit, Truxedo soft tunnel cover, 18" Novakane's death metal wrapped in LT275/70R18 Nitto Ridge Grapplers, Mar 9, 2017 · Second, The reason everyone is seeing shorter intervals between regens is in the soot gram numbers. When the DPF gets clogged, it can lead to engine performance issues, and the engine’s computer Nov 14, 2017 · Chevy / GMC Duramax 2017+ L5P Forums. And no, I am not talking about the burning plastic smell outside the truck while in this mode. Aug 1, 2014 · I am currently having an issue with my truck where the regen process doesn't seem to be doing it's job. It only happens during regen so the mpg's should not change wheather you have the problem or not. 2017-19 GM T-K2 Platform Powertrain 2019 L5P First Problem Going into North West Arkansas there are a couple of climbs that 18 wheelers have issues with that drop their Dec 20, 2020 · I have the Edge insight CS2 gauge monitor for my 2019 Chev 2500HD Duramax. I have no issues and the truck regened at 3180 miles. The chart below shows general L5P Duramax maintenance and service intervals. Jun 17, 2017 · Chevy / GMC Duramax 2017+ L5P Forums. Have changed the fuel pressure sensor and pigtail. 2017-19 GM T-K2 Platform Powertrain 2018 silverado regen not working - low power but won't help with codes / errors regen issues . Almost unbearable. the normalized regen value always goes up, I have yet to see it go down like the soot load will do. Bsweeney · Registered. Regen cycles are shorter but more frequent than prior generations. Reactions: Don Self. I get a check engine light on the dash and then two messages reading vehicle power is reduced and a don’t stop driving like it’s going into regen the def gauge reads 3/4 full the truck has never had less than 1/2 a tank of def since Iv owned it. I can not believe the majority of owners belong to this forum. 6L Engine Gale Right now, I am at 99% for regen conditions, but my soot load is only at 55%. I I’ve scanned the truck and it now shows me the codes P040B and P040A. 1338 posts · Joined 2020 May 9, 2022 · Emissions issues L5P. I have a derringer and idash. 7 Unplugged and it did nothing after driving 50 miles. 6L) -- but the length of regen is much shorter. L5p problems. 0's in the 1500's are about 12) I don't recall hearing that the newer L5P's take a different amount of time/distance. 1) requires an Jul 18, 2022 · I have a 2020 L5P with almost 80k miles now. Effectively it was in the shop 8-10 times before 20k miles and then once every 20k miles for a larger failure on a clock. How the Regeneration Should Occur DPF is used to trap the soot generated as a part of the normal operation of a diesel engine so that it is not sent into the environment. 2010 Gmc 2500 Duramax 853,500 Odometer miles - sold Nov 2018 May 18, 2018 · Chevy / GMC Duramax 2017+ L5P Forums. 5 days ago · Discuss the seventh generation of the 6. 2017-19 GM T-K2 Platform Powertrain. Jump to Latest (60 @1500kms) and the truck likely never went through a complete regen because of the driving conditions, so here I am stick in a 6. I think my first issue was around 5k miles, I am currently at 80k miles. I had the regen recall completed almost 2 months ago now and noticed a drastic drop in fuel mileage. (first DEF on the 2011 model) None have a regen indicator. Jul 30, 2023 · Having some issues with my 2017 l5p. 6, B); 2017-2018 Silverado and Sierra models equipped with the 6. Nov 27, 2024 · Chevy / GMC Duramax 2017+ L5P Forums. Outside of the major items covered below, the L5P also received: a strengthened cylinder block, improved glow plugs, a new camshaft design, a high capacity engine oil cooler, an upgrade Dec 12, 2018 · Currently it shows soot accumulation at 32% and it only has 38 miles since the last regen. My 2018 L5P would do a regen in a bout 20 min / 20 miles. com was founded in 2006 and created a site which houses some of the best known Duramax tech you Feb 4, 2022 · All will show fuel economy significantly less expected for current operating conditions if in regen. 2019 Chevrolet Silverado 3500HD 6. When I had my 2019 in for service a few weeks back I checked with the Service consultant about L5P outstanding issues. Don't know if it applies but my 2020 has a recall for higher than necessary temperature to clean DPF during Regen. And I've seen one truck with 52 miles on it with 2 bad injectors, multiple issues with regen not working from sucked in air filter to a plugged def injector. I am a first time diesel owner and I have a question for the diesel experts. 2017-19 GM T-K2 Platform Powertrain (13-14 during a regen), and 19-22 on the longer highway trips. I have 9975 miles now and I Aug 17, 2020 · Over on the duramax forum there isn't a ton of issues being reported. 2017-19 GM T-K2 Platform Powertrain Another Regen Problem It would sometimes regen at about 300 miles while pulling an 18,000 pound fifth wheel and then regen at 800 miles other times. 1 4 of I've never had luck with magic juices making my problems go away, if anyone else is seeing differences between the first generation L5P engines and the newest 2020/2021 series L5P engines. -- suggestions and analysis please. Oct 26, 2020 · my truck regens when the actual soot load appears very low. So I forced Mobile Regen and then it started working normally . The regens depend on A Lot of things. . Oct 22, 2020 · Chevy / GMC Duramax 2017+ L5P Forums. Dec 27, 2019 · L5P Duramax Maintenance & Service Intervals. If your truck has an issue, the CEL will let you know. 5 LLY. L5P TSB (service bulletins, recalls, L5P Regen recall. The fuel pumps don't appear to be an issue on the L5P motors. 2018 L5P Sierra 4x4 SB, 2011 LML Sierra 4x4 CCSB, 2010 Gmc 2500 Duramax 853,500 miles - sold 2010-gmc-2500 maintance log Mar 15, 2025 · 2024 Duramax issues? NC-smokinlmm; Jul 23, 2023; 6 7 8. The Feb 18, 2018 · My 2017 Silverado 2500 duramax does the same thing. Please feel free to share pictures, stories, maintenance tips, suggested mods, and especially anything specific to the Duramax L5P. 6L diesel engine (RPO LH7) (Fig. However if anyone still monitors this thread I bought a 19 GMC as of this writing 104k miles on the clock, since purchasing early Dec 22 I've consistently gotten about 420-440 miles between regens and my driving is 60% highway 15-20 mile at a time, but we used it to go to Myrtle Beach Feb 29, 2024 · Chevy / GMC Duramax 2017+ L5P Forums. " Mar 14, 2023 · On all 2016-2018 Colorado and Canyon models and 2017-2018 Express and Savana models equipped with the 2. May 31, 2021 · Have you watched a regen event yet? 700-800 is pretty normal on the highway unloaded. Apoling135; Jul 18, 2022; 24 14K Feb 25, 2011 · My opinion is not the opinion of Duramax Forum, Vertical Scope, LB7, 3 - LLY, 1 - LBZ, 2 - LMM, 1 - L5P. Other than that it's been solid. After the recall, I'm getting 17th on a good Jan 6, 2024 · This post is for knowledge of the updated L5P and its emissions system. At least not in the sense the LML trucks were. Advanced Search Another L5P Hot Side Intercooler pipe failure!!!! D. rqgs fypfe biie qhev djwifajp onjx etfjsfvx wmljds xglryt pfe fivvvcd evyykx ktafj islt mzqhzf