Duramax l5p forum

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 have the ...

2017 L5P extended emissions warranty. I am buying a used 2017 L5P in California and receiving mixed responses on if the aftermarket warranty (GM Protection Plan) covers the emissions system. Called another dealer and they said, "no extended warranty on emissions". The dealer I am buying the truck from says emissions …2017 Chevy 3500HD SRW 4x4 CCSB L5P 2002 Chevy 2500HD 4x4 CCSB LB7 2.5 Turbo, ATS dual CP3's, Crower rods, SoCal stage2 heads, ... 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 discussion …Are you a beginner knitter looking to try your hand at knitting a hat? With the cold weather approaching, there’s no better time to start creating cozy accessories. One of the best...Are you facing technical issues with your HP device? Look no further than the official HP Support Forums. These forums provide a platform for users to engage with experts and find ...according to the capacity charts on gm-techlink the oil capacity has been 10 qts. on both 2019/2020 even though the filters changed. The filter on the 2019 L5D is the smaller filter just like the 2020 L5P and it takes 10 qts. as well. I have used 10 qts. on all my dmaxs and they all showed full-- just sayin".2020 L5P Duramax Problems. I have 61,000 miles on a 2020 gmc sierra 2500hd denali with the L5P duramax, I want to love this truck, but over the last 2 months the def system has failed, the entire emissions system has failed, coolant sensor level has failed, and a heater core has failed. The dealership says GM will not cover any of it under ...1112 posts · Joined 2009. #1 · Dec 14, 2020. Pretty sure this is last GM truck for me , now my 19 high country dually lost oil pressure at 65,058 miles 16 months old, been serviced every 10,000 or more often and stranded me twice now, this time really bad area and chevy road service left me on the side of the road for 6 hours, paid the tow ...I would never consider a LML after owning a L5P. $1500 to delete a Cummins or LML. $7,000 to delete an L5P. $3,000 to convert from a CP4 to CP3 on the LML. $700+ to level the GMC/Chevy compared to $100 to level the Ram. Personally, I would never consider long-term ownership of a modern diesel with emissions intact.

Oct 18, 2019 · 2018 GMC l5p ccsb stone blue metallic. Mcgaughy's 2" drop shackles. Truxedo tonneau cover. 20% tint. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.4K members ... 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.'17 Sierra 2500 Denali L5P ~ Summit White 295/60R20 Nitto Ridge Grapplers ~ RC Level ~ LoadLifter 5000 Ultimate Airbags ~ 30" RC Light Bar ~ 30W 5000K LED Fog ~ Color Matched Grille, ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.2K members Since 2005 ...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 ...1 1 of 12 12. Discuss the sixth generation of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY.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 ...

2602 posts · Joined 2008. #4 · Mar 12, 2017. In my opinion, A lot of engineering went into the new PCV system. I would leave it alone on the new l5P. On a LML or LMM, yes it may benefit you to make a change. 2017 L5P CCLB DRW LBZ. 2015 LML sold. 2014 LML sold. 2005 LLY sold.2019 GMC Sierra 2500HD AT4 Crew Cab L5P Duramax, Banks iDash Super Gauge and Pedal Monster, WC Fab Trans Cooler Bypass Valve, Lasfit Switchback LED Fog Lights. ... A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, ...The L5P is flat out a better built motor! Go do your research! The L5P has new heads on it that flow much better and a new fuel injection system but the main engine is mainly the same. Main and oil cooling were increased to deal with the extra power. It is a great engine, most Duramax are but it is let down by choking emissions and warranty issues.Chevy / GMC Duramax 2017+ L5P Forums. 17-19 GM TK2 Platform Performance Parts Discussion L5p Regens. Jump to Latest Follow ... 2020 Sierra AT4 3500 Duramax 2018 Denali 2500HD L5P Derringer equipped 2018 Montana 3811MS Legacy 16400#2900pin. Save Share. Like.

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L5P RPM surge during decel. I purchased a brand new 2019 2500HD Duramax and at 1200 miles I noticed the engine surging during decel. When coasting to a stop from ~30mph (any speed as long as the transmission is in 2nd gear or higher when beginning the decel) when the truck is around 15mph, the RPM begins to surge 150-200 …Haha! The only reason I am considering it is because I found a complete brand new oem L5P engine for about $10k. I assume that most of the weaknesses of the LML have been fixed with the L5P too. Like. M.A.M. 9116 posts · Joined 2014. #4 · Apr 5, 2020. Call the Diesel Attitude shop in Mondovi, WI. They’ve done a swap, into an LBZ.2018 l5p no start. 2018 chevrolet 4 door cab and chassis. truck will run for 35 seconds then shut off. After replacing the HP4 truck ran good for about 10-15 miles then it just died out and wouldnt start back up. let it sit over night come back the next morning and it will fire right up and run for about 35 seconds. the HP4 was replaced due to ...Apr 15, 2017 · 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. Nov 2, 2022 · Duramax L5P Engine Failures. I am not suggesting that there is any problem (s) with the 2017 to current L5P Durmax Engines. I am curious owning a 2021 L5P myself if anyone has had any serious issues with this engine. In doing research I find problems like NOX Sensors, DEF heaters / tanks, and injector electrical plugs, but that is about it.

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.Postings of Tech Service info for any New L5P engine issues.Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. Anyone happy with their L5P. Jump to Latest Follow. 127K views 224 replies …Hello, I have a stock 2018 L5P 140k miles and am getting code P20EE. I have replaced both nox sensors and def injector with no change in nox performance, reset sensors with snap on scanner. At highway speeds nox1 is usually around 200-300ppm and nox 2 is almost always higher, rarely even with 1 and sometimes as high as 1100ppm, …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.Sep 1, 2022 · 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 advanced, even the NSA would not be able to tackle the job. The post went into further detail about the security ... 1493 posts · Joined 2020. #7 · Apr 23, 2022. Map sensor is on top of the intake plenum, top of the engine. Lift pump is in the tank. If you have a cts3 or derringer check your lift pump pressure while driving. The frp sensor is underneath the passenger side cold air tube from the intercooler.Mar 26, 2024 · I recently got a '17 L5P, ~83,000 miles. Let me preface by saying I have owned 12 diesels, (4) Powerstrokes, (2) Duramaxes, (5) Cummins and a Ecodiesel. I am not new to them. I struggle to get more then 15-15.5 mpg in this truck and its driving me nuts. Dash MPG's aren't even remotely close except for the 400+ mile range which is about 1 mpg high. Penthouse Letters Magazine can be read for free on websites such as Magzus and Magstack. Each of these sites provide access to the full magazine; however, they only stock a small n...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 …

L5P | DuramaxDiesels.com. Forums. Duramax 6.6 Technical. Duramax Hard Parts. 1. 2. 3. Next. Filters. O. glow plugs. oldwhitehorse. Mar 31, 2024. Replies. 2. Views. 88. Mar 31, 2024. oldwhitehorse. O. 0. Code readers for 2024 L5P. 08lmm72mm. Mar 21, 2024. Replies. 16. Views. 255. Mar 26, 2024. NC-smokinlmm. 2024 Duramax issues? NC-smokinlmm.

JonM21Ltz. 1809 posts · Joined 2021. #7 · Jan 8, 2024. RamNavy said: I just purchased an Edge CTS3 to monitor my 2022 Chevy 3500HD L5p Duramax. And, of course, Edge does not provide a listing of PIDS or their definition (and the online definitions embedded on the device are threadbare.) For those who monitor their engines with Edge, Banks ...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.I simply went from stock tire size (265/70R18 = 32.6 inches) to a ~ 35 inch tire size (285/75R18 = 34.8 inches). Fuel Mileage (average) Stock Tire Size - 15 mpg city & 18 mpg highway. 35 Inch Tires - 11 mpg city & 14 mpg highway. 35 Inch Tires & 4:30 Axle Ratio - 13 mpg city & 16 mpg highway.Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. Blocking/disabling EGR on L5P. Jump to Latest Follow 26K ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.5K members Since 2005 ...2018 would be an L5P.. Injector codes are almost always a connector issue.. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.6K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, classifieds ...6,835. Location. Colorado. Jun 30, 2022. #1. My 2021 L5P Duramax has been consuming oil since we started towing with it at about 2,500 miles on the …Hello, I have a stock 2018 L5P 140k miles and am getting code P20EE. I have replaced both nox sensors and def injector with no change in nox performance, reset sensors with snap on scanner. At highway speeds nox1 is usually around 200-300ppm and nox 2 is almost always higher, rarely even with 1 and sometimes as high as 1100ppm, …Oct 12, 2017 · DALLAS — GMC today announced the redesigned Duramax 6.6L V-8 turbo-diesel offered on the 2017 Sierra HD. This next-generation redesign offers more horsepower and torque than ever — an SAE-certified 445 horsepower (332 kW) and net 910 lb.-ft. (1,234 Nm) — to enable easier, more confident hauling and trailering.

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The LoJack—the small geolocation device you can keep in your car to help find it if it's stolen—is a pretty expensive little device. Lizard Lounge forum member Gelmi decided to mak...Doesn’t work. Better option is to go to google and enter “L5P hood swap duramaxforum” and it’ll bring up all the result from the forum. Much easier than using the forum search. chevy to chevy gmc to gmc,they will bolt on and look really good..you have a line on 1.alot of yards won't ship.sucks,nothing around here.DALLAS — GMC today announced the redesigned Duramax 6.6L V-8 turbo-diesel offered on the 2017 Sierra HD. This next-generation redesign offers more horsepower and torque than ever — an SAE-certified 445 horsepower (332 kW) and net 910 lb.-ft. (1,234 Nm) — to enable easier, more confident hauling and trailering.Florida. Nov 14, 2023. #12. Currently have a truck tore apart with this same failure... truck has 189k on the clock. it developed a noise around 100k and just never thought anything more of it because the l5p has so many weird noises tbh. the noise is from the airbox and sounds almost like your burping but keeping your mouth shut lol and is in ...Feb 11, 2022 · 2020 L5P Duramax Problems. I have 61,000 miles on a 2020 gmc sierra 2500hd denali with the L5P duramax, I want to love this truck, but over the last 2 months the def system has failed, the entire emissions system has failed, coolant sensor level has failed, and a heater core has failed. The dealership says GM will not cover any of it under ... The GM L5P Duramax is a turbo-diesel engine produced by General Motors for use in full-size heavy-duty (HD) pickup trucks. Displacing 6.6 liters in a V-8 configuration, the L5P is part of a new ...Jun 18, 2019 · L. Lp5duramaxtow Discussion starter. 48 posts · Joined 2016. #1 ·Jun 18, 2019. Hey guys and gals! Been awhile since I have posted on this forum, Well long story short I have had nothing but a nightmare of a time with this 2017 Gmc Denali L5P I have the issues with the dash and radio freezing and Just turning off completely... From my experience and what I've heard, the L5P Duramax is a solid engine with impressive performance and reliability. However, like any engine, it's not immune to issues. A few peoples have reported problems with the emissions systems, particularly the DPF and SCR system. Additionally, occasional issues with injectors and fuel systems …Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. Anyone happy with their L5P. Jump to Latest Follow. 127K views 224 replies 105 participants last post by Bear76 May 14, 2023. mzodarg Discussion starter. 431 posts · Joined 2015. #1 · Jun 18, 2018.8839 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.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. ….

Keep it L5P Related. Please keep it l5p related, share any knowledge you have with the group, if you own or looking at buying an l5p you are more than welcome …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.2018 GMC l5p ccsb stone blue metallic. Mcgaughy's 2" drop shackles. Truxedo tonneau cover. 20% tint. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.4K members ...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 …And now GM is moving to encryption of canbus data in an effort to stop hacking of any onboard modules. However when GM ditched the LML's piezoelectric injectors for the Denso solenoid injectors, they actually made controlling the L5P hardware with an older ECM much easier. No need for swapping or modifying the heads to use old …06 LBZ 2500 350,000mi 09 LMM 3500 Cutaway 700,000mi 22 L5P 3500 DRW. All currently on road. Reactions: Satar, JonM21Ltz, cutty636 and 2 others. Save Share. Like. Mattswaggs. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.4K members Since 2005 ...The L5P has almost a second faster 0-60 time than the same LML on paper. As I said, I had a 13 LML stock, and now have a 18 L5P, both were bought brand new, and the L5P is much quicker!! Not even close! The LML is 397/765 in power, the L5P is 445/910.Sep 1, 2022 · 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 advanced, even the NSA would not be able to tackle the job. The post went into further detail about the security ... 3748 posts · Joined 2021. #2 · Jun 21, 2023. If you're going to vent the crankcase to atmosphere, it's gonna drip. That's why there's emissions rules now to require closed crankcase ventilation. 06 LBZ 2500 350,000mi 09 LMM 3500 Cutaway 700,000mi 22 L5P 3500 DRW. All currently on road. Duramax l5p forum, [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1], [text-1-1]