Lb7 duramax years.

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 ...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 ...884 posts · Joined 2009. #3 · Dec 6, 2009. If the filter change doesn't work, it could be a low fuel rail pressure. I just went through that. When the engine was under load, it would go into limp mode and throw a "fuel leak -large" code. It was my injector pump not supplying enough pressure to the fuel rail.What Years Fall Under 6.6L Duramax LB7? In 2001, General Motors discontinued their 6.5L Detroit engine, replacing it with the 6.6L LB7 Duramax engine. The Duramax was a much-needed update: it introduced the new common-rail direct fuel injection system. This improvement decreased emissions, and it improved the engine’s …ChevyTech77. 6861 posts · Joined 2015. #6 · Aug 12, 2021. I agree, stock LBZ, doesn’t get much better. An LMM is basically an LBZ with a DPF in the exhaust. Other than injector issues, an LB7 would be next on my list. Some people have good luck with LLYs but most seem to be problematic. 2006 Silverado 2500 4x4. LBZ.

Chevy / GMC Duramax 01-04.5 LB7 Forums. 01-04.5 LB7 Duramax Powertrain 2002 Lb7, a good find?? Jump to ... I bought an 03 lb7 cclb about a year ago with 144 on the clock the biggest problem I've had with this truck and most recently was the head gasket passed antifreeze lucky for me noticed it the same day it happened because …Mar 7, 2023 · The alternator (with a ~180 degree belt wrap) sitting 1/4" higher dictates that the tensioner (also with a ~180 degree wrap) must swing about 1/4" further out. With the tensioner arm length at around 3.5", that only comes out to about 4 degrees. With an easy 30+ degrees left in the tensioner, it's a non-issue.

Well, for starters, even in its best year, 2004, the LB7 Duramax can hardly compete with today’s modern diesels. They offer twice the horsepower, torque, and tow capacity of the original Duramax. It doesn’t have to stay that way though. The 15 LB7 Duramax performance upgrades listed below significantly improve the drivability and ...

T. truckman148 Discussion starter. 2 posts · Joined 2012. #1 · Mar 8, 2012. i am in the market for a 2004 chevy duramax for my son for a first truck. I have heard that the 2002-03's have had some issuse with injectors and other things. I am wanting to get him a dependable truck and when i purchase the truck it will have between 90k-130k miles.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...Year Make Model: 2003 Chevrolet / GMC 6.6L Duramax Year Make Model: 2002 Chevrolet / GMC 6.6L Duramax Year Make Model: 2001 Chevrolet / GMC 6.6L Duramax Part Type: Down Pipes Availability Remarks: In Stock. Ships in 3-5 business days. Condition: NewHere 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 …

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 …

The most problematic issue with the Lb7 are injectors going bad. GM issued a warranty for this and currently injectors and warrantied for 7 years/200,000 miles. The Duramax was on the Ward's 10 Best Engines list in 2001 and 2002. The following trucks use the LB7: Chevrolet Kodiak/GMC Topkick Chevrolet Silverado/GMC Sierra HD [edit] …

The Evolution CTS3 is an all-in-one LB7 Duramax tuner and monitoring solution. It offers tuning for improved performance with gains of up to 100 horsepower and 210 lb-ft or torque. It also has the built in monitoring capabilities of the Edge CTS3 insight. 2.Feb 22, 2023 · 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. May 2, 2016 · Engine: 6.6L LB7 Duramax V8 with Bosch common-rail injection system. Transmission (s): Allison 5-speed automatic, ZF-6 6-speed manual. Best Year (s): Any year, as long as all 8 injectors have been replaced with genuine Bosch re-man units. Price Range: $7,000 to $15,000. 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.The alternator (with a ~180 degree belt wrap) sitting 1/4" higher dictates that the tensioner (also with a ~180 degree wrap) must swing about 1/4" further out. With the tensioner arm length at around 3.5", that only comes out to about 4 degrees. With an easy 30+ degrees left in the tensioner, it's a non-issue.

12 posts · Joined 2008. #8 · Sep 27, 2008. LB7 Engine life continued. Symptom; a very small loss of coolant, no power loss and no real measurable loss of coolant. 3 diesel mechanics with a total of 70 years experience between them, 2 with 15 years on the GM 6.2, 6.5, LB7, LLY, LBZ, LMM engines.The LB7 is the original production 6.6L Duramax V8. Following success with the performance and reliability of the LB7, this engine became the building block of the Duramax line all the way up until today. Fuel economy on the LB7 was stout at around 20mpg and the IFS suspension included on the HD’s of … See moreAug 5, 2020 · 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 most problematic issue with the Lb7 are injectors going bad. GM issued a warranty for this and currently injectors and warrantied for 7 years/200,000 miles. The Duramax was on the Ward's 10 Best Engines list in 2001 and 2002. The following trucks use the LB7: Chevrolet Kodiak/GMC Topkick Chevrolet Silverado/GMC Sierra HD [edit] …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.I have injector number 8 that does show a balance rate of -3 to -3.5 yet in drive it goes down to -2 so I think so far I am in good shape. Chevrolet '16 2500HD 4WD LTZ CC D/A LML Deep Ocean Blue, HID lighting, otherwise stock. GMC '04 2500HD SLE CC D/A LB7 SB Summit White, LineX, Nicktane, JK headlight harness, JK fuel pump …

Apr 28, 2011 · 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.

2000 – GM debuts the LB7 Duramax diesel engine with 300 hp and 520 lb-ft torque in ’01 ¾- and 1-ton trucks.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 second Duramax engine, the LLY, first arrived on the market in mid-2004, with an increase in both power output (310 hp against the LB7’s 300) and torque (590 lb-ft against the LB7’s 520).The Duramax LLY took over from the LB7 in 2004. It came in the Chevrolet Silverado, Hummer H1 Alpha, and the GMC Sierra until 2005. GM then introduced the … 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 30-percent over injectors are the perfect upgrade for the LB7 owner that doesn’t want to take a chance on bending a connecting rod—or that isn’t quite ready to build an engine. Built Allison 1000 Transmission (Mentioned Above): $6,000. Aftermarket Fuel Supply System (Mentioned Above): $624.While the Duramax engines seem to be mostly reliable these days, the earlier years exhibited a lot of problems. We can’t recommend the 2001-2004 LB7, the 2004-2005 LLY, the 2006-2007 LBZ, the 2007-2012 LMM, or the 2011-2016 LML. Take a look at the most common complaints about these Duramax engines. 1. 2001-2004 Duramax LB7The 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 ...

Oct 17, 2023 · 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.

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.

VIN Code 8 - LML (2011-2016) In 2001 GM replaced the outdated Detroit Diesel 6.5L when they debuted the Duramax LB7. Development of the LB7 began in 1997 when General Motors and Isuzu Motors paired up to create DMAX Ltd and after just over three years, the state-of-the-art 6.6L V8 with four valves per cylinder was ready to be unveiled. At 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 …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: ...8th digit of the VIN is a "1" for LB7 and a "2" for LLY. All the duramax platforms have their quirks. I personally prefer LLY's, they are most notorious for headgasket issues but after 15+ years I'm fairly confident that if there was an issue with the truck, a previous owner would have fixed it. 6.0L Gas engine would probably be cheaper on …RPO LB7 (engine code "1") was first introduced in 2001 and continued until early 2004. It is a 32-valve design with high-pressure common-rail direct injection and an experimental …In this guide, we outline the best Duramax model years so you can ensure you have a reliable truck. We also list the worst Duramax model years, giving you …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 very durable and reliable engine. However, as the first models hit the 100,000-mile mark, some issues cropped up. Injector failure was a common problem on the LB7 engines.The LB7 is the original production 6.6L Duramax V8. Following success with the performance and reliability of the LB7, this engine became the building block of the Duramax line all the way up until today. Fuel economy on the LB7 was stout at around 20mpg and the IFS suspension included on the HD’s of … See moreLb7 injector issue. Hey guys, new here to this forum and was looking for a little assistance. I have 2004 lb7 duramax with 269k miles, replaced the factory injectors last week with remanufactured Bosch injectors and truck drove and ran amazing until this morning, pulled into work and truck sounded like it had a fuel knock.

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 ...The studs that come up on the rear engine cover where return line should bolt to are to further apart than my LMM. Went down the road to get an LB7 oil return line and same thing, had them order a different one the next day and the same. Looks to be about an 1/8" to wide.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....I saw a new dodge in person recently and it looked like a pretty decent truck, however, there is a good bit of emissions crap on the newer cummins. TEXAS A&M ENGINEERING. SOLD: 2001 2500HD LT CCSB 4X4 LB7. AKA: "******". Tuned by SCRTuning: 431 HP 823 TQ. New Truck: 05' CCSB 2500HD 4X4 LLY Code Name:Lilly.Instagram:https://instagram. shurco tarp partsgianino's on telegraphbluffton ohio iconjuan pablo segura wikipedia Can someone please tell me what years the LB7, LBy, LBz, and LMM where in production. I am about to buy a new truck, and wondering what years models have certain motors in them. I use to own a 2004 LB7, which was an awesome truck, until a cheap air compressor plugged into the cigarette lighter caught the truck on fire. :boobooNov 5, 2020 ... The LB7 Duramax engine made its debut on Chevrolet and GMC HD trucks in 2001. These diesel engines are where the Duramax started, ... publix super market at loganville town centre loganville gagrand china stoughton wi 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 acknowledged their problems when they corrected the original injector design and issued a 200,000 or 7-year warranty on the updated model.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. www.nmcourts.gov pay fines online The most problematic issue with the Lb7 are injectors going bad. GM issued a warranty for this and currently injectors and warrantied for 7 years/200,000 miles. The Duramax was on the Ward's 10 Best Engines list in 2001 and 2002. The following trucks use the LB7: Chevrolet Kodiak/GMC Topkick Chevrolet Silverado/GMC Sierra HD [edit] …Make your LB7 fuel system repairs with confindence using OE gaskets and seals from DHD. Replace this seal during LB7 injector service. ... 2003 Chevy/GMC/GM Duramax 6.6 Year Make Model: 2002 Chevy/GMC/GM ...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: