Question: What Problems Do LBZ Duramax Have?

What is the difference between LLY and LBZ Duramax?

The 2006 LLY (engine code “2″) debuted in the beginning of 2006 and ended production with the start of the 2007 calendar year.

The LBZ (engine code “D”) debuted in late 2006 and continued into 2007 sold only in the “classic” body style..

How many miles will a LBZ Duramax last?

Registered. A stock truck should get 350,000-500,000 miles without major engine repair.

What is the best year of Duramax?

2006-2007 2500 & 3500 With arguably the best plug-and-play horsepower potential (on top of 360 horsepower being offered right out of the box), the last of the (essentially*) emissions-free engines, and a stronger, six-speed Allison to back them, the LBZ Duramax has a lot going for it.

What year Duramax has injector problems?

2001 to 2004Premature injector failure was a critical problem for the 2001 to 2004 model year Duramax LB7. GM corrected the problem with an updated injector design and even extended the warranty on the new injector design to 7 years/200,000 miles.

Which is better lb7 or LBZ?

The LB7 – stronger internals, injector issues, and 5 speed trans. The LLY – stronger internals, headgasket/overheating issues, but no injector issues, and 5 speed trans. The LBZ – weaker internals (pistons are weaker), but no injector/overheating/headgasket issues.

How much horsepower can you get out of a 6.6 Duramax?

6.6L LB7 Duramax Specifications ChartManufactured Years:2001-2004Fuel Tank Size:26 GallonsMax Engine Speed:3,250 RPMHorsepower:235-300 horsepowerTorque:500-520 lb/ft of torque19 more rows•Jun 3, 2019

How do you know if you have a LBZ Duramax?

Look at the 8th digit of the VIN number, a “2” is an LLY an a “D” is an LBZ. Also, the LBZ badges are usually blue, LLY is usually red.

How reliable is the 6.6 Duramax?

Ever since the manufacture started back in 2001, the 6.6l Duramax has proven to be a reliable and durable choice for most owners. Many versions of this engine have been produced in the following 15 years, but they were all built upon the original.

Is 200k miles alot for a diesel?

Generally speaking, diesel trucks are sold with higher mileage than the typical used vehicle. It is not uncommon to see a used diesel truck for sale with over 200,000 miles on it. Granted, diesel engines typically have better reliability than a gasoline equivalent, but high mileage remains a concern.

Is LBZ the best Duramax?

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.

Why are LBZ the best Duramax?

The LBZ brought with it a substantial increase in HP and torque over the LLY and was easily the most aggressive Duramax engine yet made. Interestingly, the LBZ is sometimes called the “hot rod” engine for its high degree of performance and lack of a diesel particular filter.

What’s better LMM or LBZ?

LBZ does not have DPF so no urea tank to fill. LMM does have DPF. Thats the main big difference other than the body style change. DPF kills the mileage and performace on the LMM, but you can delete the dpf which is illegal but if you know someone that will pass it for inspection you will be fine.

Who makes the best diesel engine?

In the Company of Greatness – 10 Best Diesel Engines10 of the Greatest Diesel Engines – Ever. David Kennedy – … The Cummins B-Series. The One That Paved the Way. … International DT466. … Wartsila-Sulzer RTA96-C. … Caterpillar C12 Super Truck Racing Engine. … GM 6.6L Duramax. … International 7.3L Power Stroke. … MTU 16V-4000.More items…•

What is so special about the LBZ Duramax?

The LBZ is one of the more sought after Duramax engines due to its strength, reliability, and being pre-emissions (DPF appeared on the next generation LMM in 2007). Changes include: Cylinder block casting and machining changes strengthen the bottom of the cylinder bores to support increased power and torque.

How reliable is the LBZ Duramax?

Produced from 2006 to 2007, the shortest production Duramax, the LBZ produced 360hp and 650lb-ft. … Overall, the Duramax LBZ is an awesome engine that is highly reliable and capable from a performance perspective.