Duramax l5p forum

And if my l5p isn’t plugged in at night during this cold. My duramax will not start in the morning. I cycle the glow plugs a few times and give it a shot. The truck engages starter and rolls once cuts out for 3 seconds and repeats. Two new batteries, treated fuel, also put a new starter relay in a few days ago to see if was part of the issue.

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.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.Aug 12, 2020 · 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. Craigslist offers a highly visible forum for small businesses to post job classifieds and advertisements for services in fields ranging from automotive to legal. Although Craigslis...If you’re a die-hard Florida State Seminoles fan or are simply interested in keeping up with college football news, Warchant.com is the ultimate online destination for you. This we...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 …

Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. information on l5p. Jump to Latest Follow 69K views ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.3K membersIf you are a fan of collecting or trading virtual items, you may have come across the term “MM2 values” in various online forums or platforms. One of the primary factors influencin...8843 posts · Joined 2011. #4 · Jun 6, 2022. fwiw, the OTA 'update' option on the audio is for the infotainment system, not for powertrain stuff. 2023 LZO CC std box 4x4. previous: 2021 LM2 CC std box 4x4 ; '18 2500 L5P CCSB 4x4; '11 LML, '10 LMM and 04.5 LLY. _Kegger_ and cfell. Share.Will have over 5000 by the end of next week. 2010 Gmc 2500 Duramax 853,500 Odometer miles - sold Nov 2018. 2013 LT CCSB SRW bought with 508,000 miles, now over 703,000 miles. 2013 CrewCab and chassis with 9' Hillsboro aluminum flatbed 84,000 miles. - Sold Sept 2019. chevor-2010-gmc-2500-maintenance-log.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!Feb 16, 2017 · 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, stock 285 posts · Joined 2019. #39 · Mar 5, 2021. Got rid of that awful fuel filter system on the L5P and installed a Fleece filter delete. Easy enough, but for anyone doing it, don’t take the shield with the housing. All you need to do are the two 13mm bolts at the back, top/side. You’ll understand when you look at it.

Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. 2018 L5P 3500 stumbles. Jump to Latest Follow 21 - 40 of 46 Posts. 1 2 3. 1. 1thackattack · ... 2019 Chevrolet Silverado 3500HD 6.6L Duramax (L5P) Crew Cab 4x4 SRW SB High Country w/ Rear Entertainment Package, ...The chart below shows general L5P Duramax maintenance and service intervals. Please keep in mind your situation may call for more frequent maintenance than what is listed below. Heavy towing or driving in extreme conditions requires more frequent maintenance. When you change your oil, check components like your air filter to make sure they are ...I have a 2017 L5P 2500 that won't start (I know) because the lift pump isnt turning on. I"m not sure what relay 1 or 2 is for the lift pump but all fuses seem to be fine and I have bench tested relay 1 and it seems to be fine. I'm gonna add also that the fuel gauge isn't working either. I don't seem to be getting a keyed 12v to the relay either ...To receive a free Humana Big Book, first visit Humana.com. Click on the arrow and link that says “Get Free Guide.” Enter your information in the online forum, and wait to receive T...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.Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. P1476. Jump to Latest Follow 10K views ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.4K members Since 2005 ...

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474 posts · Joined 2017. #3 · Apr 10, 2017 (Edited) I'd say at least a full second longer than my LML. My LML would pretty much instantly start within less than a second of cranking when not freezing cold. I'll have to time them and see if there is really a significant difference or just seems like a long time to me.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 ... LML to L5P isn't as big of an improvement in the technology of the motor, so it would have been a little more difficult to justify, in my opinion. "Aut viam inveniam aut faciam". Derek. "Daddy Shark" 2017 GMC Sierra 2500 Denali, Crew Cab Short Box, 122k Miles. "Big Red" 2008 Chevy Silverado 2500HD Ext Cab Long Box, 262k miles (GONE) blythkd1.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.

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.474 posts · Joined 2017. #3 · Apr 10, 2017 (Edited) I'd say at least a full second longer than my LML. My LML would pretty much instantly start within less than a second of cranking when not freezing cold. I'll have to time them and see if there is really a significant difference or just seems like a long time to me.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 …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!329 posts · Joined 2017. #19 · Feb 21, 2019. I would say your DIC is probably over by 1 mpg by my experiences with 23K mileson a '17 2500 LTZ. Mileage improved a little and I have never reset my 2nd mileage …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 ... 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 …To fit a 35" tire you will need to come up 3.5" and do minor trimming of the plastic front valance. You can do a level lift like Rough Country and Super Lift and turn up the keys and 35s will clear provided you don't go to negative on offset. I don't recommend a leveling kit or cranking the keys because it will ride like a fat girl on a moped.2019 Chevrolet Silverado 3500HD 6.6L Duramax (L5P) Crew Cab 4x4 SRW SB High Country w/ Rear Entertainment Package, ... A forum community dedicated to Chevy and GMC Duramax diesel owners and enthusiasts. Come join the discussion about modifications, towing, ...P0206, P0306. I have a 2018 3500 with L5P. I took it in for recall on the regeneration interval and engine block heater. Two weeks later it threw nitrogen oxide sensor warning. i ordered part and kept driving. then it went into engine power reduced check emmisions. apparently it wont regenerate when check engine light is on. paid to …

NachO_GMC. The L5P is a complete Engine redesign - the rest of the truck is the same - Wheels, to headliner. We have minor improvements like locking tailgate and some infotainment upgrades - mostly quality of Life type improvements. the Engine is Unproven when you compare the # of miles on the road to the LML's.

I just took delivery on a 2500 L5P. My Supplement recommends Top Tier Diesel which is almost impossible to find nationwide and if Top Tier is not available "GM recommends the use of ACDelco Diesel Fuel Conditioner" GM naturally does not recommend other aftermarket additives. My prior diesel ownership was a 2011 VW Touareg with the 3.0L TDI.My son's L5P is having fuel delivery issues and the (lift) pump by the fuel tank is whining like crazy when the temp is 15 degrees or colder . Yesterday the truck had to get towed. The fuel is treated from the terminal and we use Cenpeco super diesel klenz at the rate of 1qt per 20 gallons fuel. I was upstate NY and my LML started and ran fine ...8843 posts · Joined 2011. #4 · Jun 6, 2022. fwiw, the OTA 'update' option on the audio is for the infotainment system, not for powertrain stuff. 2023 LZO CC std box 4x4. previous: 2021 LM2 CC std box 4x4 ; '18 2500 L5P CCSB 4x4; '11 LML, '10 LMM and 04.5 LLY. _Kegger_ and cfell. Share.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 ...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.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.Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. L5P Warranty. Jump to Latest Follow 13K ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.2K members Since 2005 ...18 GMC 2500 L5P. 65K miles CEL came on about 2000 miles or so ago. Truck was running fine and was using DEF normally but CEL keeps returning on a P026D. Changed MAF sensor and inlet temp sensor, CEL still returns. Took truck to dealer for reflash recall and P026D was gone after but returned next day.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 …

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Craigslist offers a highly visible forum for small businesses to post job classifieds and advertisements for services in fields ranging from automotive to legal. Although Craigslis...In today’s digital age, building brand authority and trust is crucial for any business seeking to succeed in their marketing efforts. Forums offer a unique space where users active...2018 L5P 55 MPH 2 MILES SHUT OFF CRANK NO START. The little was a 100 miles away from the house got a service light a 55 mph limp went 2 miles truck shut off. Showed 74% filter life changed filter anyway. It was a …Sounds very familiar to my complete Injector failure at 5700 miles on my 2018 3500 L5P that happened yesterday. Take it to get checked out before you get stranded. 2003 Chevy HD2500 Long Bed LB7 Allison 1000 all stock. 2018 DENALI 3500 SRW Long Bed L5P 2" Level, Bilstein shocks, 18" TOYO AT2 285's on stock wheels.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!The chart below shows general L5P Duramax maintenance and service intervals. Please keep in mind your situation may call for more frequent maintenance than what is listed below. Heavy towing or driving in extreme conditions requires more frequent maintenance. When you change your oil, check components like your air filter to make …2019 Chevrolet Silverado 3500HD 6.6L Duramax (L5P) ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.2K members Since 2005 A forum community dedicated to Chevy and GMC Duramax diesel owners … ….

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 style injectors.Aug 12, 2020 · 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. 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 …Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. information on l5p. Jump to Latest Follow 69K views ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.3K membersThe 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 ...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.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, L5D). Fig. 5.My son's L5P is having fuel delivery issues and the (lift) pump by the fuel tank is whining like crazy when the temp is 15 degrees or colder . Yesterday the truck had to get towed. The fuel is treated from the terminal and we use Cenpeco super diesel klenz at the rate of 1qt per 20 gallons fuel. I was upstate NY and my LML started and ran fine ...Craigslist is a user-driven classified ad forum where business owners can advertise, sell their products or services and even trade with other users. While the basic settings on Cr...Common problems with Duramax diesel engines include air in the fuel lines, fuel starvation, water pump failure, overheating, injector failure and harness chafing. Some of these iss... Duramax l5p forum, 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 ... , Im looking for a bi-directional scan tool for my 2019 2500 Duramax L5P I am looking at the Autel MK808BT but I am having trouble confirming if it will work with a truck as new as mine. ... Chevy and GMC Duramax Diesel Forum. 3.8M posts 208.2K members Since 2005 ..., Go take a look at a Duramax Forum, its scary. Just on the first page. Major growing pains. Never be the launch customer for any new product, always wait for 2nd generation. 2017 l5p blown turbo gasket Engine light Ticking Noise Near Engine/Transmission L5p problems 2017 Tranny Issues Oil Leak L5P transmission …, Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. L5P fastener torque specs. Jump to Latest Follow 18K views ... 2018 Silverado 3500 6.6L Duramax (L5P) LTZ Z71 Crew Cab. Save Share. Like., 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 ..., A forum user posted that she had caught genital herpes off her new partner. She asked for advice about treating an outbreak and wanted to know if there was anything that would help..., Lift Recommendations. I have had my 2019 Chevy LTZ for 7 months now and it’s almost time to put my summer rims on. I moved up to this truck from an 2014 GMC SLT 2500HD. With that truck I cranked the torsion keys to level it, ran shock extenders with cognito upper control arms and the Pisk kit. My tires are 295/55/20 on fuel 20x10 rims with ..., 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. , 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 …, 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., Excessive regens! I just picked up a new 2019 GMC 3500 Denali 2 weeks ago. It has the new L5P in it which I love the power and torque. I had a 13 LML and a 15 LML and the 13 I deleted emissions problems solved, the 15 I only had 38,000 on it when I just traded it and I never deleted it. At worst I would get 300 before a regen in the 15 …, Edge 26402 EvoHT2 with ECM Unlock Tool for 2017-2019 GM L5P Duramax The market and our competition didn't think it was possible, but here it is. Edge Products is excited to announce GM L5P Duramax diesel flash tuning with In-Vehicle ECM unlocking capabilities., May 10, 2017 · Go take a look at a Duramax Forum, its scary. Just on the first page. Major growing pains. Never be the launch customer for any new product, always wait for 2nd generation. 2017 l5p blown turbo gasket Engine light Ticking Noise Near Engine/Transmission L5p problems 2017 Tranny Issues Oil Leak L5P transmission temps high vs 2015 lml , Just upgraded to the L5P. Discuss the seventh generation of the 6.6L Duramax diesel engine & associated components. Engine related discussion ONLY., 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 illuminated front emblem. winterboy8, jharp and Melonhead1102. Save Share., 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 ..., '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 ..., Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain L5p Derringer. Jump to Latest Follow ... 2020 Sierra AT4 3500 Duramax 2018 Denali 2500HD L5P Derringer equipped 2018 Montana 3811MS Legacy 16400#2900pin. Save Share. Like. monkeyman., 1194 posts · Joined 2013. #9 · Feb 9, 2017. In for updates also.. 2016 lml chevy ccsb. Last december installed a HSP compound turbo kit with a stainless diesel 5 blade S475 over stock. And a exergy 10mm cp3 conversion kit but still stock injectors and transmission. 5" flo-pro exhaust with no muffler and tuning is done with EZ Lynk by PPEI., 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., 1) the filter will not physically fit. The diameter is too big (cooler changed in 2020) and without relocating the secondary coolant pump, it's too long. 2) the CAT filter adapters sold previously don't work as the oil cooler threads have changed now. 3) the CAT filter has no internal bypass valve. L5P's pump monster amounts of oil and pressure ..., Most injector issues on l5p can be traced back to injector harness. The l5p seems to have a ... Duramaxdiesels.com was founded in 2006 and created a site which houses some of the best known Duramax tech you can find. We strive to keep this the #1 forum for tech and information while continuing the push for new and exciting tech on ..., 1531 posts · Joined 2014. #5 · May 29, 2020. It is not the typical ticking noise. It is a thumping noise and it is supposedly caused by the fanbelt. On the 2020 there are two belts now and the fan is by itself. GMTECH link has a small description on …, 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 …, 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"., Chevy / GMC Duramax 2017+ L5P Forums. 2017-19 GM T-K2 Platform Powertrain. 2018 L5P 3500 stumbles. Jump to Latest Follow 21 - 40 of 46 Posts. 1 2 3. 1. 1thackattack · ... 2019 Chevrolet Silverado 3500HD 6.6L Duramax (L5P) Crew Cab 4x4 SRW SB High Country w/ Rear Entertainment Package, ..., A forum user posted that she had caught genital herpes off her new partner. She asked for advice about treating an outbreak and wanted to know if there was anything that would help..., Sep 30, 2017 · 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. 2017-19 GM T-K2 Platform Powertrain L5p Derringer. Jump to Latest Follow ... 2020 Sierra AT4 3500 Duramax 2018 Denali 2500HD L5P Derringer equipped 2018 Montana 3811MS Legacy 16400#2900pin. Save Share. Like. monkeyman., 527 posts · Joined 2017. #30 · May 17, 2018. The gasket did not even remotely stick to either the manifold or the TB, unless you bend it or otherwise screw up it will be fine. It is a metal embossed gasket. 2021 3500 Z71 Sport LTZ. 2020 Sierra AT4 3500 Duramax. 2018 Denali 2500HD L5P Derringer equipped., I took it to Chevy (GM) Dealer for relearning per actuator replacement instructions. They used MDI2 GDS Software to conduct the requested relearn, however, the initial "counts" show 287 exceeding the max value of 285 per the GDS software, so now code P100B displays with CEL at ignition on, engine on., 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., 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 ...