The safest Duramax model years you can buy are the models produced from 2011 to 2021. These include the Duramax LGH, Duramax LML, Duramax XLD25, Duramax XLD28, Duramax LWN, Duramax L5P, and Duramax LM2.
Why is the LBZ Duramax the best?
The LBZ employed a thicker engine block casting, meatier connecting rods, and a higher pressure common-rail fuel system. This gave it more power and reliability versus any other Duramax to that point.
What year Duramax has head gasket problems?
These are both relatively common problems you might expect to deal with on the 2001-2004 LB7 Duramax, but you can rest a bit easier knowing the aftermarket has had a decade to develop and perfect the parts you need to correct it.
What are common Duramax problems?
Some things to watch out for include problem starting, excessive smoke, lower gear selection, poor fuel economy, a loss of engine power, lower RPMs, and excessive noise. While several possible fuel system problems exist, the 6.6L Duramax consistently has two.
What year Duramax has the least problems? – Related Questions
What is the life expectancy of a Duramax?
Overall, a properly cared-for Duramax engine should last over 300,000 miles. However, consumers report having Duramax’s lasting in the 500,000-mile range! Nonetheless, proper maintenance is a must to increase the life expectancy of your engine.
Do Duramax have head gasket problems?
No matter which gasket design your Duramax has, they are all susceptible to overheating – the #1 reason for failure. Gaskets live a very hard life, in a harsh environment that deals with extreme temperature and pressure changes.
At what mileage do head gaskets fail?
How Long Do Head Gaskets Last? Head gaskets typically last 200,000 miles, which is considered about the lifetime of most cars. That means, if you look after your car and follow the service schedule, you should never be faced with a blown head gasket.
Can you drive a Duramax with a blown head gasket?
No, the sooner you get it fixed, the better. Aside from the damage it will do to your engine, driving with a blown head gasket can be dangerous. For starters, if you’re checking under the hood to identify the problem, hot escaping coolant can cause burns and even start a fire if you’re not careful.
Do LLY Duramax have head gasket problems?
One of the common issues we see with the Duramax engines is head gasket failures. The gaskets in all years of 6.6 Duramax pickups are a multi-layer steel style gasket.
How much does it cost to replace injectors in a LLY Duramax?
The total cost to have a mechanic replace 8 injectors on an LLY Duramax can range from $3500 – $4500 CAD, depending on what other work is performed at the same time. The good news is LLY injectors are located outside the valve covers so the task is considerably easier and cheaper than on prior LB7 models.
When did LLY Duramax end?
The LLY (internally called the 8GF1) (engine code “2”) is a 6.6 L; 403.9 cu in (6,619 cc) turbocharged engine which debuted in mid-2004 and continued until the end of 2005. It is a 32-valve design with high-pressure common-rail direct injection and aluminum cylinder heads.
How long do LLY Duramax injectors last?
Most well-maintained LLY injectors last between 150,000 to 200,000 miles.
Is LB7 better than lly?
The LB7 was the simplest in terms of emissions controls, while the LLY came with the largest turbocharger ever offered. The LBZ packed a host of improvements, including considerably more power, and the LMM was nearly a mirror image of it aside from its use of a diesel particulate filter.
Why is LBZ better than LLY?
Although they use similar Duramax parts, the LBZ differs slightly due to its superior 360 hp as against LLY’s 310 hp. GM made the LBZ superior by adding more webbing in its main bearing regions, improved injector and fuel rails, larger turbo inlet, etc. So, technically, the LBZ is better than the LLY engine.
How do you get 30 mpg on a LLY Duramax?
Let’s take a look at how to get 30+ MPG with a Duramax.
Some popular methods include:
- Tuning.
- Removing the tailgate.
- Installing a bed cover.
- Not using your AC.
- Upgrading your air intake.
- Installing a new fuel filter.
How long should you let Duramax warm up before driving?
As a general rule of thumb, if it is below zero degrees Fahrenheit, you should allow your engine up to seven minutes to warm up. If the temperature is between zero and fifty degrees, the warm-up period should be three to five minutes. Over fifty degrees will only require one or two minutes to warm up.
What diesel truck gets the best mileage?
The Best: Ram 1500, 26 mpg, 2WD
While the Ram’s combined mileage is equaled by GM’s Chevy Silverado and GMC Sierra diesels, the Ram diesel gets the edge with a better 33-mpg highway rating, along with its 23 mpg in city driving; the Silverado gets 31/23 highway/city, and the Sierra gets 30/23.
How many miles per gallon does a 6.6 Duramax diesel get?
This Duramax 6.6-liter V-8 gets 17 to 19 mpg on the highway.
Is a Duramax better than a Cummins?
Cummins Vs.
The Duramax leads with horsepower, but the Cummins is the king of torque with numbers up to 1,000 ft-lbs depending on the truck. Let’s take a look at some other specs.