Lb7 duramax years
With this system, you can increase your vehicle’s fuel economy by adjusting the exhaust after treatments. The best Duramax diesel engine year models that are safe to buy include: 2010 – 2017 Duramax LGH. 2011 – 2016 Duramax LML. 2011 – present Duramax XLD25. 2012 – present Duramax XLD28. 2014 – present Duramax LWN.
The 2007 LBZ also has the same issues as the 2006 LBZ. In my opinion, and yes I know, opinions are like assholes. Everyone has one and they all stink. If you want a Duramax the 2006-2007 classic is the time that you want to be looking. There is no injector or very little injector harness problem unlike the older LLY.New years are a great time to hit the reset button on your business and your mindset. Check out these motivational quotes for the New Year. New Year’s Day is a great time to hit th...While that LB7 platform was replaced with the LLY in the middle of 2004, the basic internal design of the Duramax has been left virtually unchanged up to the 2016 model year. Sure, it received some updates and changes as the years went on to better fit emissions requirements, but there is no doubt that the Duramax engine has been a …Diesel of the Week. 1,400-Horsepower Turbocharged LB7 Duramax. Since 2019, Daman Perry has been building up his diesel performance shop DP Customs. To …
The L5P Duramax is the latest version of the Duramax V8 diesel engine. (engine code Y). Introduced in the 2017 model year, it was the most powerful diesel engine GM had produced, with 445 hp (332 kW) at 2,800 rpm and 910 lb⋅ft (1,234 N⋅m) at 1,600 rpm. Design specification performance can exceed 550 bhp (410 kW) at 3,050 rpm and 1,050 lb⋅ ...Chevrolet Silverado, which has consistently been designed with reliable engines. . The LB7 Duramax engine is a turbocharged, intercooled V8 that produces 300 hp and 560 lb-ft of torque. The engine ...The LBZ Duramax V-8 engine is more powerful than the LB7 and LLY with its 605 lb. ft torque at 1600 rpm and 310 bhp at 3000 rpm. LLY has two variants; one with a power output of 310 bhp at 3000 rpm and another 250 bhp at 3200 rpm. LB7 comes with a power output of 300 bhp at 3200 rpm. LB7 model years range from 2001 to 2004 and LBZ from 2006 to ...Here is our guide to the 7 most common 6.6L LB7 Duramax problems and how to fix them. 1. LB7 Duramax Injectors. The most notorious LB7 Duramax problem is their original injectors. Even GM …The 6.6L Duramax, running complete engine includes the block, heads, front cover, oil pump & pan, oil filter, oil cooler, damper, water pump, valve covers, Glow plugs, flywheel housing, thermostat, thermostat housing, water outlet, intake manifold, common rail system with injectors, injector drive module, turbo & exhaust manifolds, fuel filter, plus the …The Duramax L5P was launched in 2017 and made an appearance in models like the 2017 GMC Sierra HD and the 2017 Chevrolet Silverado HD. Producing 445 hp and 910 lb-ft of torque, this was one of GM ...6.6L Duramax Diesel Engine LB7. This original Duramax Diesel 6600 V-8 (LB7) was introduced in 2001 and was used through the mid-2004 model year. It offered a unique 32 overhead valve design coupled with high pressure direct fuel injection. The engine design included an experimental composite aluminum cylinder head. The most frequent …6.6L Duramax Diesel Engine LB7. This original Duramax Diesel 6600 V-8 (LB7) was introduced in 2001 and was used through the mid-2004 model year. It offered a unique 32 overhead valve design coupled with high pressure direct fuel injection. The engine design included an experimental composite aluminum cylinder head. The most frequent …
After building a compound turbo LB7 Duramax to the tune of more than 1,200 HP, Dark Horse Diesel owner Mike Maas was hungry for more. He decided to build up another LB7 Duramax with an LML block and is now seeing the potential to hit 2,000 HP. ... For the last couple years of the PRI Show, Frankenstein Engine Dynamics has had an …Up by 13% so far this year, the market is having its best start in over two decades. By clicking "TRY IT", I agree to receive newsletters and promotions from Money and its partners...Here is a list of the best Duramax year models: 2010-2017 Duramax LGH. 2017-2021 Duramax L5P. 2019-021 Duramax LM2. 2014-2021 Duramax LWN. And here are the Duramax year models to avoid: 2001-2004 Duramax LB7. 2004-2005 Duramax LLY: 2006-2007 Duramax LBZ.The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque.Description. Fitment. Shipping. Duramax 01-04 LB7 Nozzle Set: Full set of new injector nozzles flowing at 45 percent over, capable of 725 RWHP with proper supporting modifications. Biggest nozzles recommended for stock CP3 pump or turbo. Not recommended for frequent or heavy towing applications. Sold as a balanced and …
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Today we're going to go on a journey and look at every Duramax engine that GM has built, from the LB7 all the way up to L5P. We're going to look at what make...The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque.LB7 Pros. Made in America; Most horsepower and torque ever offered in a diesel pickup at the time (300hp, 520 lb-ft) Aluminum cylinder heads made for a lighter curb weight and improved performance; One of the lightest rotating assemblies of any generation Duramax; Forged-steel connecting rodsAt the core of the K15’s transformation is the formidable ‘03 LB7 Duramax engine, which is more than capable of robust performance. Stingel’s LB7 makes a cool 1,300 horsepower at 4,000 rpm and an impressive 1,900 lb.-ft. of torque at 3,400 rpm. Wyatt’s expertise and commitment to pushing the boundaries of diesel power are evident in the ...What Years Were the LB7 Duramax? The LB7 Duramax can be found in the 2001-2004 Chevrolet Silverado HD and GMC Sierra HD. It was also used in the Chevrolet Kodiak and GMC Topkick, which were medium-duty trucks produced until 2009. The LB7 was introduced in 2001 and used until early 2004 before it was replaced with the LLY Duramax. What Year of ...
12 Days of Christmas! - https://bit.ly/3oGRWptIn today's video Dustin sits down to talk about the ever-popular (but injector issue having) LB7 Duramax. This ...Jul 16, 2023 ... Comments12 · 5 Ways to Bulletproof your LB7 Duramax · 2004 LB7 Duramax 3500 Dually Sat For Four Years!!! Will It Run?!?! · 600 Hp LB7 Duramax ...We did a thing today, my husband and I. We got our 11-year-old a phone. Our newly minted middle schooler will have an Apple a day, and we're not talking... Edit Your Post Publ...2004 Chevy 3500 CC Dually LB7 Duramax/Allison LT loaded 96k MBRP 4inch exhaust/RPI cold air intake & turbo horn. Save Share. Like. ... Seems I read an 01 would not take an 01 tune back if flashed with a newer year new. Good to know the facts. Thank you Brian . 2016 chevy ltz 3500 srw UA Steamfitter, Local 136 Evansville, IN. The motor, sometimes referred to as Baby Duramax, was slated to be offered in GM’s light duty pickup trucks – the Chevrolet Silverado 1500 and GMC Sierra 1500 – for the 2010 model year. SOLD - 2003 Silverado CCSB LB7, stock (for now), PPE Boost Valve, Hypertech Power Programmer III, GN, 285/75R16E BFG A/T's. With a new oil change the oil PSI would be a steady 60psi but towards the end of the oil change interval (with diesel in the oil) it would be about 45 psi.Found some for a 2003 LB7 to 2004.5-2005 LLY and LB7 to 2006-2007 LBZ. I think the key is that the 2006 LLY was mated to a 6 speed, unlike the 2004.5 and 2005 models. An 06 "LLY" is mechanically an LBZ... so forget the LLY part altogether. You're attempting to swap an LBZ into an LB7 truck.May 27, 2022 · The first engine was installed in 2001 in Chevrolet and GMC trucks. 23 years after the project was first conceived millions of vehicles now have the engine installed. A Brief History of the DURAMAX Diesel Engine 2001-2003 LB7. The first DURAMAX diesel engine, code LB7 debuted in 2000 For the 2001 model year. Introduced in 2001 as a joint venture between GM and Isuzu, the Duramax V-8 was the General's bid to one-up Ford and Chrysler's newest generation of powerful and efficient diesels.... Chevrolet Silverado, which has consistently been designed with reliable engines. . The LB7 Duramax engine is a turbocharged, intercooled V8 that produces 300 hp and 560 lb-ft of torque. The engine ...
Jul 9, 2012 · Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain Difference in years for lb7 motor. Jump to Latest ... Difference in years for lb7 motor.
Water Pump Failure. Fuel Filter Housing O-ring Leaks. Blown Head Gasket. Overheating (fan clutch problems, radiator gunk) In addition to the above common engine problems, there are also a few worthwhile to mention problems that affect high horsepower LB7’s: Crankshafts + connecting rods break at high hp.The joint venture (and resulting engine) was known as Duramax, and the LB7 was the first of many models to come. It’s a 6.6-liter, common-rail injected, 32-valve, V8 turbodiesel which put out 235hp and 500 pounds of torque in its first year, and for the final year of ‘04 the LB7’s output had grown to 300hp and 520 pounds of torque.LB7 Duramax Engine Tech - Diesel World. Part 1: Short Block Shortcomings and Fixes. When introduced in 2001, there were plenty of naysayers worried that the 6.6L Duramax diesel would never hold up …This newly formulated Custom Age 625+ super-alloy demonstrates superior fatigue cycle life, tensile strength and toughness – with complete resistance to atmospheric corrosion and oxidation making it best suited to extreme, high horsepower competition builds on LB7/LLY/LBZ/LMM/LML Duramax 6.6L engines manufactured from 2001-2016. The name Duramax was chosen for the new engine to signify durability and maximum power, cleanliness, and fuel economy. The new engine created and built by DMAX Ltd was a 6,599 cubic centimeter (6.6 Liter), direct-injection, turbo-charged Diesel V8 with 90-degree placement, aluminum cylinder heads, and 32 overhead valves. LBZ Duramax Specifications. Manufactured Years: 2006-2007. Engine Design: 6.6L 90-Degree V8 Turbocharged Diesel. Transmission: 6-Speed Auto Allison 1000 Transmission. ZF650 Manual Transmission. Vin Identification:Good block and rotating assembly. Injectors are the only weak part really. The fixed geometry turbo has a bit more lag than the new VVT's but still works well. The LB7's has some of the more advanced and more available things due to the fact that they have been out the longest. Good luck with the buy.The only ford diesel worth having is a 7.3 and they lack fuel economy and power. The 6.0 ford could be good if you get it dirt cheap and spend about $10000 in parts to bulletproof everything. Just my opinion and experience. 2001 chevy 2500hd 4x4 ext. Cab long bed lb7. 5" turbo back exhaust into 6" tip.The result is a Camaro with an LB7 Duramax fit snuggly under the factory hood, which surprisingly, doesn’t look out of place. In fact, the hefty engine fits the mold just fine. The motor itself is Wagler’s Streetfighter Duramax platform , that comes assembled with a Callies billet crank, MAHLE pistons, narrowed Wagler rods to fit the crank ...
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The glow plugs on the LB7's are wired differently depending on whether they are california or federal emissions. (not year) So if you have an 03-04 federal-emissions truck, the glow plugs are wired just the same as the 01-02 LB7's. 06 audi S4, V8/6spd. 05 dmax/allison...always testing something new.The only ford diesel worth having is a 7.3 and they lack fuel economy and power. The 6.0 ford could be good if you get it dirt cheap and spend about $10000 in parts to bulletproof everything. Just my opinion and experience. 2001 chevy 2500hd 4x4 ext. Cab long bed lb7. 5" turbo back exhaust into 6" tip.03’Duramax LB7 limp mode. New injectors last year. It’s been running great. Then limp mode. Check engine light, loss of fuel gauge. P2146 p0201 p0203 p0206 p0207 codes. Checked every wire and harness under the hood. Checked grounds. Pulled valve covers and rechecked injectors and wiring.Business of Your Life Financial Planner Alicia Reiss joins Yahoo Finance Live to discuss how one should spend a year-end work bonus, tax implications, and long-term financial goals...The result is a Camaro with an LB7 Duramax fit snuggly under the factory hood, which surprisingly, doesn’t look out of place. In fact, the hefty engine fits the mold just fine. The motor itself is Wagler’s Streetfighter Duramax platform , that comes assembled with a Callies billet crank, MAHLE pistons, narrowed Wagler rods to fit the crank ... Best Years Of The Duramax Engines. 1. LB7 (2001-2004) The LB7 was the first Duramax engine introduced in 2001, offering impressive performance with 300 horsepower and 520 lb-ft of torque. As the pioneer in the Duramax family, it brought about a new era of diesel engines for GM trucks. The only ford diesel worth having is a 7.3 and they lack fuel economy and power. The 6.0 ford could be good if you get it dirt cheap and spend about $10000 in parts to bulletproof everything. Just my opinion and experience. 2001 chevy 2500hd 4x4 ext. Cab long bed lb7. 5" turbo back exhaust into 6" tip.The first generation Duramax, the 6.6L LB7 engine, produced 235 horsepower and 500 lb-ft of torque. Over the years, these numbers have increased dramatically. In the latest iteration, the 6.6L Duramax offers 445 horsepower and 910 lb-ft of torque, which highlights the continuous improvement in power and performance.The new year can be a meaningful time to implement a momentous change. But not everything needs to be a total overhaul—small, simple changes can have surprisingly powerful effects....Introduced in 2001 as a joint venture between GM and Isuzu, the Duramax V-8 was the General's bid to one-up Ford and Chrysler's newest generation of powerful and efficient diesels....Let’s take a look at the highlights of other powerplants within the Duramax family that are reliable. LB7 2001-2003. This engine is getting to be pretty old now, but it is still powerful and reliable. So, it’s a good candidate for what are the best years for the Duramax. Because of its age, it’s probably the cheapest Duramax engine around.Feb 14, 2023 ... ... Duramax LMM vs LML 02:24 – Duramax LML Common ... What Is The Worst Year Duramax Ever Made? ... The LB7 Duramax - Reliability & Common Problems! ….
Duramax 6.6L Model: LB7: LLY: LBZ: LMM: LML: L5P: Production Years: 2001-2004: 2004.5-2006: 2006-2007.5: 2007.5-2010: 2011-2016: 2017-Present: VIN Code (8th digit) 1: 2: D: 6: 8: Y: Engine Size: 6.6L, 403 cubic inches: 6.6L, 403 cubic inches: 6.6L, 403 cubic inches: 6.6L, 403 cubic inches: 6.6L, 403 cubic inches: 6.6L, 403 cubic inches: Head ...Midway through the 2004 model year, GM released the second-generation Duramax, RPO code LLY. ... Of the first five generations of the Duramax (LB7, LLY, LBZ, LMM and LML), the LB7/LLY rod is the second lightest ever used. At 1,155 grams apiece, only the rods used in the LML (’11-‘16) were lighter. However, just like the LB7, the rods …The Duramax L5P was launched in 2017 and made an appearance in models like the 2017 GMC Sierra HD and the 2017 Chevrolet Silverado HD. Producing 445 hp and 910 lb-ft of torque, this was one of GM ...Dec 10, 2018 · Duramax History, Lesson 3: LBZ. December 10, 2018. Story By. Mike McGlothlin. By the time the LBZ came along, the LB7 ’s injector issues had long been solved and the overheating issues associated with the LLY were a thing of the past. This engine’s beefier block casting, stronger connecting rods, higher pressure common-rail fuel system and ... LB7: 2001 – 2004. As the original Duramax model, the LB7 is still extremely popular with diesel enthusiasts due to its lack of emissions control parts. In general, it’s a …The factory firing is 1-2-7-8-4-5-6-3, but this new camshaft design changes that to 1-5-6-3-4-2-7-8. Reversing an engine’s firing order isn’t new science, however, as GM gas guys have been doing it for years in with the LS engine 4-7 swap. The Duramax family (LB7, LLY, LBZ, LMM, LML) can suffer from the crankshaft breaking just behind the ...With all the upgrades, Perry’s Duramax is making somewhere along the lines of 1,400-1,500 horsepower, with a long-term goal of adding a compound-turbo setup and getting closer to 1,800-2,000 horsepower on fuel only. Diesel of the Week is sponsored by AMSOIL. If you have an engine you’d like to highlight in this series, please email Engine ...News. Follow our GM Duramax news coverage. Sponsored Links. Complete information, specs, power and torque ratings on the GM Duramax turbo-diesel engines used in GM … Lb7 duramax years, LB7 white smoke. One of the best ways to check if injectors are bad is to test the oil for fuel contamination. NAPA should have test kits and lab instructions - or talk to a NAPA Service Center. I ran my LB7 for 138K …, 2000 – GM debuts the LB7 Duramax diesel engine with 300 hp and 520 lb-ft torque in ’01 ¾- and 1-ton trucks., Oil cooler replacement was recent, and the cab had to come off for that. So, while the early LB7's had the injector issues, Ford has theirs as well. Not sure why your truck is only worth 6K; in Florida, a good southern diesel truck holds a good value. 2003 2500HD 6.6 duramax (LB7) all stock (no mods) Sierraluva., Even in the era of the virtual event, it tends to take me a few days to recover from the whirlwind of CES. Frontloading the year’s big hardware news is a bit less than ideal, but p..., Check out the Freedom Series cylinder heads for the LB7 6.6-liter Duramax. This all-new cylinder head features a cupless injector bore. By installing the Freedom series heads, you can actually save time and money with no more injector cups to install, leak, or worry about. Each cylinder head is assembled from a new casting in Fleece’s state ..., Here is a list of the best Duramax year models: 2010-2017 Duramax LGH. 2017-2021 Duramax L5P. 2019-021 Duramax LM2. 2014-2021 Duramax LWN. And here are the Duramax year models to avoid: 2001-2004 Duramax LB7. 2004-2005 Duramax LLY: 2006-2007 Duramax LBZ., Could have meant the LB7 injectors are only good till 150ish, but my best advice, is go to an AG dealer with a sample and pay them $30 to get an Oil Analysis done. It will tell you everything you need to know. -2003 CCSB 6.6 All stock, just straight piped. 235,000kms running strong. 1st set done at 205,000kms-. Like., Every year, millions of people plunge into a period of feasts and fireworks in celebration of Chinese or Lunar New Year. How did this holiday get its start? Advertisement Every yea..., This Silverado went through a gradual evolution over the years, from a mild shop truck to a souped-up powerhouse. The earlier build consisted of a stock LB7 bore block with a balanced stock crank, Carrillo connecting rods, MAHLE Motorsports cast de-bowled pistons with valve reliefs and 16.1:1 compression ratio., 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..., engine and tranny wise all lb7, lly, lbz, lmm's are probably the most reliable vehicles gm makes our shop has only seen one or two allys come in with actuall issues. and the duramax besides the lb7 injectors and the occasionall cp3 pump are bullet proof. 2002 Crewcab short box 3/4 tonHD lb7 W/Allison stock, ATS DIESEL E-POWER …, After more than 15 years of progression, R&D and pushing the limits of the platform, Wade has once again raised the bar with his latest compound turbo LB7 Duramax engine aimed at 2,000 horsepower. Find out what went into the custom build! By Greg Jones. Greg Jones is Content Director and Editor of Engine Builder Magazine. …, 8 LB7 Reman Bosch Injectors 45% Over Copper Washers O-rings ... 2001-2004 LB7 Duramax Reman Exergy SAC Fuel Injectors 45% Over (Set of 8) - E01 10116 Fuel Injector Set (0) Reviews: Write first review ... Very few parts are reused. In our years of experience these reman injectors have not exhibited an increased reliability risk., GM 6.6L LB7 V-8 Duramax Turbo Diesel Engine Vehicle Applications; Year Make Model Transmission Power (hp / kW) @ RPM Torque (lb-ft / Nm) @ RPM; 2001-2003, 2001 – 2004 Duramax LB7: Source: turbodieselregister. The LB7 Duramax was the first generation of the V8 Duramax engine, and it did quite well. It is a 6.6-liter V8 engine with four valves per cylinder. It also has an engine block made of cast iron with aluminum heads. Overall, it was a very powerful and reliable engine., Mar 26, 2020 ... An up-to-date walk around and modification list of this 600 hp LB7 Duramax Diesel. Instagram: @raberle7 Facebook: Reid Aberle Email: ..., RPO Regular Production Option Codes (Engine Series) There have been seven Duramax turbodiesel engines since their introduction at the turn of the new millennium: LB7 – 2001 to 2004, 300 horsepower, 520 pound-feet. LLY – 2004 to 2005, 310 horsepower, 520 pound-feet. LBZ – 2006 to 2007, 250 to 310 horsepower, 460 to 605 pound-feet., Dec 10, 2018 · Duramax History, Lesson 3: LBZ. December 10, 2018. Story By. Mike McGlothlin. By the time the LBZ came along, the LB7 ’s injector issues had long been solved and the overheating issues associated with the LLY were a thing of the past. This engine’s beefier block casting, stronger connecting rods, higher pressure common-rail fuel system and ... , With all the upgrades, Perry’s Duramax is making somewhere along the lines of 1,400-1,500 horsepower, with a long-term goal of adding a compound-turbo setup and getting closer to 1,800-2,000 horsepower on fuel only. Diesel of the Week is sponsored by AMSOIL. If you have an engine you’d like to highlight in this series, please email Engine ..., LB7 Duramax 2001-2004. In 2001, GM teamed up with Isuzu and brought another innovation to the diesel crowd and was first to market with a common-rail direct-injected diesel engine, the LB7. Like every Duramax that followed, it featured 6.6 liters (or 402 cubic inches) of displacement, a cast-iron block with aluminum heads, four valves per ..., The name Duramax was chosen for the new engine to signify durability and maximum power, cleanliness, and fuel economy. The new engine created and built by DMAX Ltd was a 6,599 cubic centimeter (6.6 Liter), direct-injection, turbo-charged Diesel V8 with 90-degree placement, aluminum cylinder heads, and 32 overhead valves. , Duramax Horsepower & Torque Figures by Model Year. Model Year (s) Horsepower. Torque. RPO Code. 2001 - 2002. 300 hp @ 3,100 rpm. 520 lb-ft @ 1,800 rpm. LB7., Today we're going to go on a journey and look at every Duramax engine that GM has built, from the LB7 all the way up to L5P. We're going to look at what make..., 2000 – GM debuts the LB7 Duramax diesel engine with 300 hp and 520 lb-ft torque in ’01 ¾- and 1-ton trucks., Mar 30, 2023 ... Comments19 · The LMM Duramax - Reliability & 5 Common Problems · Loudest Duramax 9 Blade Turbo I Could Find! · How to Build a 500WHP Duram..., We did a thing today, my husband and I. We got our 11-year-old a phone. Our newly minted middle schooler will have an Apple a day, and we're not talking... Edit Your Post Publ..., GM 6.6L LB7 V-8 Duramax Turbo Diesel Engine Vehicle Applications; Year Make Model Transmission Power (hp / kW) @ RPM Torque (lb-ft / Nm) @ RPM; 2001-2003, Duramax LB7 and LBZ are both 6.6L diesel engines. The LB7 is a 1st generation engine, while the LBZ is a 3rd generation Duramax engine. Both engines share many of the same engine parts, including crankshafts, camshafts, connecting rods, blocks, fuel tanks, bore x stroke, and so forth. Despite their similarities, the two engines differ slightly., This Silverado went through a gradual evolution over the years, from a mild shop truck to a souped-up powerhouse. The earlier build consisted of a stock LB7 bore block with a balanced stock crank, Carrillo connecting rods, MAHLE Motorsports cast de-bowled pistons with valve reliefs and 16.1:1 compression ratio., The 6.6L Duramax, running complete engine includes the block, heads, front cover, oil pump & pan, oil filter, oil cooler, damper, water pump, valve covers, Glow plugs, flywheel housing, thermostat, thermostat housing, water outlet, intake manifold, common rail system with injectors, injector drive module, turbo & exhaust manifolds, fuel filter, plus the …, Good block and rotating assembly. Injectors are the only weak part really. The fixed geometry turbo has a bit more lag than the new VVT's but still works well. The LB7's has some of the more advanced and more available things due to the fact that they have been out the longest. Good luck with the buy., LB7: 2001 – 2004. As the original Duramax model, the LB7 is still extremely popular with diesel enthusiasts due to its lack of emissions control parts. In general, it’s a …, Apr 2, 2023 ... LLY Duramax Problems & Reliability. 14K views · 1 year ago ... ... The LB7 Duramax - Reliability & Common Problems! ... What Is The Worst Year ...