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Here are the years of Duramax engines to avoid: 2001 to 2004 LB7. 2004 to 2005 LLY. 2006 to 2007 LBZ. 2007 to 2012 LMM. 2007 to 2016 LML. These engines are prone to numerous problems, including issues with the fuel lift pump, water pump, fuel injector, piston, and fuel pressure lift pump. Read on to learn more about the Duramax years to avoid ...rynburns. • 8 yr. ago. The LBZ is the best Duramax chevy ever built. Non invasive emissions equipment, easier to work on (for the most part) and easily an acceptable ammount of power. I would only change a couple things if I had one; the stupid fan shroud thing that bolts to the heads/block would go for sure, it makes life a pain in the ass ... As a result, a number of much-awaited models at the time featured the 6.6-liter LBZ Duramax, including the Chevrolet Kodiak, GMC TopKick, GMC Sierra, and the. Chevrolet Silverado, which has ... Duramax Engines Through the Ages. Several Duramax engines were produced throughout the years to comply with ever-shifting EPA emissions standards. First up is the LB7, which first saw the light of day in 2001. Duramax LB7. Source: Truck Trend. The LB7 was the first Duramax engine and was made from 2001–2004.Maintenance requirements (oil, filter changes) for a diesel engine are about the same as for gas-powered vehicles. Duramax engines are known for their reliability and come standard with a 5-year/60,000-mile limited warranty on 2.8L Turbo-Diesel engines, or a 5-year/100,000-mile limited warranty on 3.0L and 6.6L Turbo-Diesel engines.Feb 26, 2014 · The next few generations of the Duramax delivered solid upgrades to the design. Most companies would have made these running changes, but GM identified each revision as a different model. The next revision, referred to as the LLY, was a mid-year change in 2004. The easiest way to tell whether the engine is an LB7 or an LLY is by the valve covers. Jun 3, 2019 · 2001 was a huge year for GM lovers across the United States. Not only was 2001 the start of the Duramax engine, but also the famous Allison 1000 Transmission. This first Duramax engine mated with GM trucks was coined the LB7 Duramax. The LBZ is great in stock form, but get horsepower numbers above 600, and it needs some upgrades to survive. LMM: 2007.5 Through 2010. The LMM engine ushered in the emissions era of Duramax. Although the LMM is almost the same as the LBZ, which makes it a very good engine, it features several new emissions control devices. The Duramax years to avoid are LB7 from 2001 to 2004, LLY from 2004 to 2006, LBZ from 2005 to 2006, LMM from 2007 to 2010, and the LML from 2011 to 2016. These are the Duramax engine years that have been most troublesome. “Drive Past Myths: Get the Real Deal on Car Buying!”. The 2007 to 2010 model years of 2500 HD and 3500 trucks featured a new body style, vastly improved interior, and the first version of the Duramax LMM engine to have an exhaust after-treatment process that required fuel for it to function.A little over 3 years after the initial concept, the LB7 Duramax diesel went into production. The resulting engine was a state-of-the-art 6.6L V8 with four-valves-per-cylinder. The LB7 put out a segment-best 300 hp and 520 lb-ft of torque. The LB7 Duramax was considered revolutionary at the time and utilized a turbocharger, intercooler, and ... 1. 2005 Duramax. The 2005 Duramax is one of the worst engines of the entire series. The thing that makes it fail the most is that it has a head gasket problem, which means that the head gasket fails and causes an excess of oil in the coolant. This can cause overheating problems, which will lead to more failures. Feb 1, 2023 ... Duramax LLY: 2004.5-2006 model years · Injector harness chafing · Water pump failure · Glow plug failure · Fuel pressure relief valve &m...Discover the evolution and unique features of Duramax engines, from the pioneering LB7 to the cutting-edge L5P. Understand key differences and make an informed decision for your truck's diesel engine needs. ... and innovation, Duramax engines have been a staple in the automotive industry for years. Fast forward to the present day, and …The 2011-2016 Duramax suffers from a high pressure fuel pump issue unique to this year range. Failure of this CP4 pump is usually catastrophic, causing instant contamination of the entire fuel system with metal particulates. Chances are, if you’re looking at this page, you’re well aware of the problem.Best Duramax years. The Duramax can be an excellent engine for your truck if you avoid the model years above and stick to its durable and reliable ones. Below, we …Here are a few top places that hire 14 and 15 year olds as employees, plus a few other money-making ideas! Start making money this month. Home Make Money Looking for places that h...While most known Duramax problems affect specific model years, the faulty fuel system is an issue that plagues all model years. It usually starts with difficulty starting the vehicle and then transits to excessive smoke, poor fuel economy, lower RPMs, loss of engine power, and excessive noise. While there are several fuel system problems out ...The 6.6L Duramax V-8 was discontinued for the vans' 2017 model year, and GM promises it will replace the big diesel with a version of the 2.8L Duramax I-4 soon. See All 21 Photos Advertisement

The 2007 model year marked significant changes across the GM truck lineup. With the all-new Chevrolet Silverado and GMC Sierra 1500 (1/2-ton) models already introduced for 2007, the all-new Heavy-Duty version of the GM trucks were released roughly mid-model year (often referred to as a 2007.5). ... The Duramax LMM is a durable …History was made in January 2001 when General Motors introduced its first Duramax diesel engine for the 2002 model year Chevrolet Silverado and GMC Sierra heavy-duty trucks —a 6.6-liter V-8...For the last 20 years, GM trucks are known for their combination of Duramax diesel engines and Allison transmissions. They are known for their durability and power. In the past, GM Duramax trucks also had manual transmission but from 2007. the automatic Allison transmission is the only option.Nov 29, 2018 · The RHG6 model turbocharger aboard the LB7 marked the only time a fixed geometry unit was used on a Duramax. Manufactured by IHI Turbo America, the RHG6 sported a 60.6mm (inducer) compressor wheel and a 68mm (exducer) turbine wheel, along with a wastegate. In factory form, the IHI charger sees a maximum peak boost of 22 to 24 psi. Duramax History. In the late 1990s General Motors lagged woefully behind its competition in the Diesel Powered Heavy Duty Pick-Up Truck segment, garnering a mere 3 percent of the market. ... Year: Description: 6.6L Duramax LB7: 8: 2001 to 2004: Duramax Engines - 6.6L Duramax Diesel Engine LB7 (2001 to 2004) 6.6L Duramax LBZ: 8:

The Duramax’s greatest years are 2006 and 2007. These engines are both dependable and capable of producing a great deal of power. The only issue with the Duramax from 2006 to 2007 is that the pistons crack when the engine is …The Duramax’s greatest years are 2006 and 2007. These engines are both dependable and capable of producing a great deal of power. The only issue with the Duramax from 2006 to 2007 is that the pistons crack when the engine is driven at more than 600 horsepower.Besides the V8, as of 2019, GM offers an inline six Duramax for the Silverado 1500 and other models. A Duramax engine lasts 250,000 miles or around 20 years on average, but with good maintenance, it can do over 400,000 miles easily. The best years for Duramax are 2006-2007 “LBZ,” and the latest, post 2017 “L5P”.…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. As a result, you have to be careful while buying some . Possible cause: The 3-liter Duramax is an inline-6 engine that debuted in 2019 for the 2020.