Duramax l5p forum.

2021 GMC 3500 SLE 27k miles. Not sure I should feel happy it was under warranty but originally took the truck into GMC dealer for what sounded like a boost leak. No codes, no other symptoms other than using 7 gallons of DEF in 2800 miles. Which seems excessive for not towing. Hold the brake add trottle and can hear loud hiss.The L5P Duramax Will Never Be Tuned. Period. On September 24, 2017, a statement was issued on a Duramax discussion forum which made the bold claim that the L5P Duramax ECM would never be tuned, and the security protocols were so …Excessive DEF usage - 2021 L5P. I haven't been here for awhile because my 2015 D'Max LML was pretty flawless. Well I now have a 2021 L5P and I absolutely love it, especially towing our 37' fifth wheel. Well, I love it all except for the amount of DEF it is using while towing. We recently completed a 2400 mile trip, of which 2000 was towing.I'm running a basically stock 2500HD with a L5P; fuel economy and towing muscle were important priorities when I bought this rig. I did upgrade cold air intact with a s/b box and I run a B5 diesel blend and Stanadyne Performance routinely. My mixed around town/hwy (75/25 mix) driving mpg avg is 13.5 but if I drive like grandma I can take that ...Not a single issue until 4/04/2021. 7812 miles, had been driven 150 that day, 20 miles from home, check engine light, derate & shut-down in seconds. Lotsa white smoke. Dealer replaced fuel pump, still no start, no fuel pressure, lift pump working perfectly. Maybe $77,000 isn't enough to get one to 10,000 miles.

The CTS2 also has a throttle position indication. It would be interesting to watch a comparison for those experiencing the dead pedal versus ours that accelerate like a rocket the relationship between throttle pressure and boost. This would troubleshoot if it is the sensor or a performance issue with the engine.

2024 L5P RATTLE / TICK AT IDLE. Hello All, I'm new here and this is my first post. I took the new truck to the dealer for tick noise at idle. Many post regarding DEF Injector tick which I'm familiar with (3rd Duramax) and type writer tick (3 Ford diesels too). The tech's heard it too and were under the truck, and couldn't immediately figure it out.

491 posts · Joined 2017. #3 · Dec 17, 2017. It certainly should be downshifting at full throttle when it is towing at 1700 RPM and losing speed. The L5P equipped truck did very well in the Ike review towing a much heavier load and it did downshift when needed; realize that peak horsepower is well below governed speed so …Maybe ice on the pickup screen. Ron Nielson said: DTC P1089. Fuel Rail Pressure Performance During Deceleration Fuel Cut Off. The Engine Control Module (ECM) monitors for changes in fuel rail pressure when the vehicle is in a deceleration condition and the fuel injected quantity is at zero.The trucks have lift pumps built in and can support enough fuel delivery for the current "tunes". The L5P has an in-tank pump that keeps the entire fuel system under positive pressure, so there is no need for a lift pump. I don't know what its horsepower limitations are but tuning for the L5P is still in its infancy so there's probably little ...The ECM uses the following criteria to perform a regeneration: Vehicle in Drive. BARO sensor 1 is more than 51 kPa (7.4 PSI) Engine speed between 500 and 4000 RPM. Exhaust Gas Temperature Sensor 1 between 100 and 725 C. Exhaust Gas Temperature Sensor 2 between 95 and 750 C.The fuel additive for LB7- LML Duramax would be a benefit to the fuel systems along with extra fuel filtration and a lift pump. Especially LML's and the CP4. This provides a little extra support to the CP4. 1996 K3500 6.5L, ( "F" Eng #141 cast block) NV4500, crewcab, dually,Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro …

Factory filter is 2 micron, the Donaldson is 5 and the cat is 4 if I remember correctly. JMHO. Shared this in our other fuel filter forum. 2022 Chevrolet High Country Duramax, SB, Iradescent Pearl Tricoat, Sunroof, Z71 Package, Safety Package II, Goosneck/5th wheel package. 2022 Keystone Cougar 27SGS, Curt A20. darmah59_6329.

viper8315. 4158 posts · Joined 2019. #8 · May 15, 2021. If it were my truck. I'd take it out and inspect it myself. That way I'd know for sure. Tim. 2019 Chevy Silverado 2500 High Country L5P CC/SB. S&B CAI, Banks Derringer & Pedal Monster w/iDash, Banks differential cover, Bilstein 5100 shocks, Morimoto xB headlights, tail lights and fog lights.

Feb 22, 2020 · Feb 22, 2020. #1. Hi everyone. Just signed up to the forum. I picked up my 2020 Denali 2500 hd duramax this week and noticed a loud knocking at idle which increases in volume as the engine warms up. Went back in to the dealer before I even left the lot and saw the service advisor and the diesel tech who both said it was normal. 36 posts · Joined 2010. #4 · Jul 11, 2017. I currently have 9K miles on my L5P. I drive 70miles round trip to work, non-highway, with hills through towns. I had set the trip odometer the day I bought it and it's averaging almost 17, including some mild camper towing. Tank to tank I'm seeing better than 18 with regens.Oct 22, 2021 · 4158 posts · Joined 2019. #8 · Oct 22, 2021. Congrats on the new truck! Best of luck with it. Tim. 2019 Chevy Silverado 2500 High Country L5P CC/SB. S&B CAI, Banks Derringer & Pedal Monster w/iDash, Banks differential cover, Bilstein 5100 shocks, Morimoto xB headlights, tail lights and fog lights. S&B MAP spacer, Centramatics, Chevy ... DaPlumber Discussion starter. 29 posts · Joined 2023. #1 · Jan 6, 2024 (Edited) This post is for knowledge of the updated L5P and its emissions system. 2024 2500. 2800 miles. IDash. Soot levels rose 30% today driving 65mph Over 25 miles. I’ve done 2 regents this week over 500 miles. 1/3 highway driving 2/3 around town and backroads.Looking for some help, 2017 High Country 136k miles. randomly got the service exhaust fuel system warning accompanied by the engine power reduced warning. I scanned the truck and had about 16 codes all ending with circuit high voltage. no check engine light before that message. My fuel level now is pegged on E with no low fuel light. …I was under it yesterday and noticed oil on the bottom of the intercooler line prior to the intake (passenger side). All I've read and been told point to one of 5 things. 1. Excessive Crankcase pressure. 2. Kinked drain line. 3. …

1. Mar 21, 2022. #1. I have a stock 2019 L5P with 100,000 miles on it. I drove it about 600 miles on a road trip last December and after about 5 hours of driving highway speed, I started to notice a stutter or almost a missing as if it were misfiring type of feeling (realizing this is not possible in a diesel) and it only happens at 1500 RPM at ...Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain L5p problems. Jump to ... 2017 GMC Sierra 2500HD SLT CCSB 4x4 L5P Duramax, stockForum Castleford Tigers. TOPICS 4441. POSTS 71417. VIEWS 8.67Million Last post by RLFANS News Hound Sat May 04, 2024 7:49 pm: Catalans Dragons. TOPICS …Penn State Wrestling has a rich history and a dedicated fan base that spans across the globe. For fans looking to stay up-to-date with the latest news, engage in discussions, and c...83 posts · Joined 2018. #4 · Jul 2, 2019. You are pulling way to much weight for your truck. The L5p was a very small exhaust side configuration, small up pipes, small exhaust turbo vanes, etc. So I am guessing the ECM was seeing some very high EGT’s and cut power to keep from melting pistons. Like.

Chevy / GMC Duramax 2017+ L5P Forums. 2020+ GM T1 Platform Powertrain. Looking for good funnel to use with 2.5 gallon oil jug. Tags funnel oil change. Jump to Latest Follow ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.5K members Since 2005 ...

2024 L5P throttle response issues. I just bought a 2024 GMC 2500HD AT4 w/ Duramax. When leaving a stop light there is a slight shutter on acceleration. Is This normal? Also when coming to a stop slowing to a slow roll (about 5-10 mph) I step on the accelerator and the truck takes a solid 5-10 seconds to start responding.Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. L5P Dead Pedal. Jump to Latest Follow 38K views ... 2017 Silverado 2500 HD LTZ Duramax (L5P) Deep Ocean Blue metalic. Save Share.846 posts · Joined 2018. #1 · Oct 26, 2018. Well unfortunately I have the known “chuggling” issue on my 2019 L5P Duramax. The issue has occurred half a dozen times and the truck only has 1,800 miles on it. It always happens in 3rd or 4th gear under light acceleration. It feels like the engine loses fuel for a second causing deceleration ...Durabiopwr. 241 posts · Joined 2021. #2 · Dec 15, 2022. P100b appears to be turbo actuator issues. P2002 could have been related to the plugged up map sensor. Air ratio off if its plugged up. Might go away if map sensor replaced. But if turbo actuator messed up its gonna make more smoke too and plug dpf. 2020 GMC 2500 CCLB work …How to find wilderness areas near you including online forums, Gaia GPS, AllTrails, and MTB Project. In outdoor travel, the word “isolation” is put on a pedestal. “Get away from th...Feb 28, 2022 · His dealer actually encouraged him to do it, while they had a lineup of L5P waiting for a tank. I wanna stress this, my brother did not want to do this, unfortunately the constant downtime, parts availability, and repairs made him do thanks to GM. It’s the very first diesel he has owned that he had to delete. I will not tell you what’s ... How to find wilderness areas near you including online forums, Gaia GPS, AllTrails, and MTB Project. In outdoor travel, the word “isolation” is put on a pedestal. “Get away from th...Sep 23, 2023 · 2024 L5P throttle response issues. I just bought a 2024 GMC 2500HD AT4 w/ Duramax. When leaving a stop light there is a slight shutter on acceleration. Is This normal? Also when coming to a stop slowing to a slow roll (about 5-10 mph) I step on the accelerator and the truck takes a solid 5-10 seconds to start responding. 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. From all out performance builds running 8 second ¼ mile territory, to 2000hp sled pullers and all the way back to the average guy looking to boost his performance in his tow rig to get up those hills a little …Chevy / GMC Duramax 11-16 LML Forums. 11-16 LML Duramax Powertrain Delete LML or New L5P. Jump to Latest ... Duramax L5P | Undercover Ultra Flex bed cover | Boss 9'2" DXT Stainless plow | AIMS 3kw inverter-charger | Titan Travel Trekker 50-gallon auxiliary fuel tank ...

Pulling about 6500 lbs through the mountains at ~65 MPH I was getting about 8.5 MPG with a dodge hemi. Same trailer, same roads I am seeing ~13.5MPG with an L5P. 2024 SRW 3500 AT4. 1978 Trans Am, 400, factory 4 spd, 3:42 posi. DEF - saving the environment one plastic jug at a time.

I have a 22 that tows and hauls, if you want any mileage, you gotta slow down to at least 65, 60 is even better. Big square truck with all sorts of hp available means speed is your enemy. 06 LBZ 2500 350,000mi 09 LMM 3500 Cutaway 700,000mi 22 L5P 3500 DRW. All currently on road. McSpeed, DuramaxDanZ71Sport, WillyD2114 and 3 others.

19947 posts · Joined 2012. #4 · Aug 17, 2020. Over on the duramax forum there isn't a ton of issues being reported. There are some though. Regen issues, thumping sound from the motor, and a few other smaller things. The fuel pumps don't appear to be an issue on the L5P motors. At least not in the sense the LML trucks were.36 posts · Joined 2010. #4 · Jul 11, 2017. I currently have 9K miles on my L5P. I drive 70miles round trip to work, non-highway, with hills through towns. I had set the trip odometer the day I bought it and it's averaging almost 17, including some mild camper towing. Tank to tank I'm seeing better than 18 with regens.Feb 16, 2022 · 28. Bay Area. Feb 17, 2022. #4. Depending on which injector it is that labor price can be accurate. I question the parts total cause there’s more than just an injector that needs replacing like the high pressure pipes on these engines are one time use. And the fuel injector return pipe seals should be replaced as well. The fuel additive for LB7- LML Duramax would be a benefit to the fuel systems along with extra fuel filtration and a lift pump. Especially LML's and the CP4. This provides a little extra support to the CP4. 1996 K3500 6.5L, ( "F" Eng #141 cast block) NV4500, crewcab, dually,Diamond Eye 4" Turbo Back Exhaust w/2.5" Flo-Pro …I was under it yesterday and noticed oil on the bottom of the intercooler line prior to the intake (passenger side). All I've read and been told point to one of 5 things. 1. Excessive Crankcase pressure. 2. Kinked drain line. 3. …No major, recurring issues with the first generation of L5P trucks. One of the most common is the coolant tank sensor going bad. Another thing that owners have noticed is the TMAP sensor getting caked with soot and causing other issues. Other than that it's a solid platform and highly recommended.8839 posts · Joined 2011. #2 · Jan 31, 2019 (Edited) Factory installs one on L5P. Venturi Jet Drain Oil Separator. • First of its type in the new Duramax 6.6L. • Designed to ensure oil control in sustained full-load operation. • Totally sealed system that collects misted oil entrained in the blow-by gas, allowing. for re-use in the engine.The National Leadership Youth Forum (NLYF) is a dynamic and exciting event that brings together young leaders from across the country. The NLYF is designed to inspire and empower y...fubo. 37 posts · Joined 2023. #20 · Aug 6, 2023. Hmm. I didn’t see any real changes in range but then again it is my first diesel. It gets 30mpg on the highway at 65mph so I guess if it regens for 7% of the time then it will probably drop to 27 to 28 mpg. Seems drop down to like 22 to 24 mpg when it’s regenerating on the highway.1058 posts · Joined 2016. #6 · Sep 1, 2022. never looked but did change two today from top as it was hot out, two 10 mm bolts on cover remove hot pipe and bungie to side, pop off fuel lines using Lisle Kit, 37000 and cover will pop off leaving injector connectors, did not feel like removing fender well and wheel and climbing in! a little ...Aug 12, 2022 · Postings of Tech Service info for any New L5P engine issues.

1498 posts · Joined 2020. #1 · Nov 2, 2020. Hadn't seen more than a few post on PCV reroute for the L5P so I thought I'd share mine. Earlier gen hose required 5/8" hose it seems while the L5P uses 7/8" id. I chose not to use the stock short section as the hose I used is very good quality and retains its form.Duramax Diesel Engine Oil Filter Update for 2023. September 20, 2022. The PF63 engine oil filter (Fig. 5) is the new recommended filter specification for 2020-2023 Silverado 2500HD/3500HD, Sierra 2500HD/3500HD, Express, Savana; and 2019-2023 Silverado 4500/5500/6500 models equipped with the 6.6L Duramax diesel engine (RPO …Postings of Tech Service info for any New L5P engine issues.Instagram:https://instagram. hutchinson cinemabravenly global pyramid schemeojos locos el paso menuff14 endwalker beast tribe In today’s digital age, discussion forum websites have become an integral part of online communities. These platforms provide a space for individuals to connect, share ideas, and e... waterfront tiny houses for saleemmett corrigan death 304 posts · Joined 2011. #21 · Apr 3, 2021. When I had the oil changed by the gmc dealer (first oil change was free) they used full synthetic oil and a delco filter. The service manager said they only use full synthetic oil in all duramax engines, regardless of generation. 2010 LMM 2500 Sold, 2020 L5P 2500 Sold.The DOC is behind the turbo on the L5P motors. 2015.5 LML, WCFab billet S480 over stock, LDS 100% sticks, Exergy 12mm cp3, Mike L trans, Fass ... Chevy and GMC Duramax Diesel Forum. ... 208.2K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the … how do i renew my illinois driver's license Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. P1089 on L5P. Jump to Latest Follow 26K ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.7K members Since 2005 ...Apr 5, 2017 · Regular maintenance needs to be documented at required intervals and you need to replace all external parts as needed but good piece of mind on internal failure. Truth is if you change the fluids as required to keep the warranty most would never need to use it anyway. 2017 L5P 2500hd LT 4X4 CC/LB. A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds, troubleshooting, maintenance, and more!