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.
How long will a 2004 Duramax last?
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!
What year Duramax is most reliable?
Some engines are more popular than others. For example, the pre-emissions Duramax engines made between 2001 and 2007 are highly sought-after for superior reliability.
Is the 6.6 Duramax a reliable engine?
Duramax Engines have an excellent reputation for reliability. Each model year is associated with problems, especially when the engines reach 100,000+ miles. However, while Cummins engines may continue to edge out Duramax in terms of overall reliability, Duramax fans love their higher horsepower.
Is a 2004 Duramax reliable? – Related Questions
Is Duramax as good as Cummins?
Duramax engines can be found in Chevrolet and GMC vehicles, such as the Chevy Silverado and GMC Sierra. Their high horsepower and torque outputs directly compete with Cummins engines, as well as PowerStroke. In addition to durability, Duramax engines are known for their quiet performance.
How reliable is the LB7 Duramax?
Overall, the LB7 is a very reliable and efficient engine with exception to the injectors faults, but beyond that, the truck will only need basic maintenance and last for several hundred thousand miles.
What problems does the 6.6 Duramax have?
A common issue with models in the 2005 or earlier models is a fan clutch failure, which can make the engine overheat, especially in hot weather. Injector problems – The 6.6L Duramax is known for injector failures. In the 2001 to 2004 LB7 models, two primary issues are internal cracking and corrosion.
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.
What is high mileage for a 6.6 Duramax diesel?
According to Prosource Diesel, anything over 350,000-miles is considered high mileage for a used diesel pickup with a Cummins or Duramax engine under its hood. Anything over 350,000-miles is also regarded as high mileage for a Powerstroke diesel engine.
Which is better Duramax or Powerstroke?
Both the Ram’s Cummins (seen above) and Ford’s Power Stroke can pull over that amount, but the Duramax lags with a total towing capacity of 23,300. The Power Stroke wins here again with a total towing amount of 34,000 pounds versus Ram’s 31,210 pounds.
What is the most reliable diesel truck ever made?
The Most Reliable Diesel Trucks of All Time
- 1999-2003 Ford F-250/F-350 Super Duty (7.3-Liter Power Stroke)
- 2001-2004 Chevrolet Silverado/GMC Sierra 2500/3500 (6.6-Liter Duramax LB7)
- 2006-2007 Chevrolet Silverado/GMC Sierra (6.6-Liter Duramax LBZ)
- 1994-1998 Dodge Ram 2500/3500 (5.9-Liter, 12-Valve Cummins)
Which diesel is most reliable?
The Cummins is known to be the king of torque, ranking higher than Duramax and some other diesel engines. They feature up to 1,000lb/ft of torque. What is this? If you need a diesel engine with a guarantee of longevity, you can’t go wrong by choosing the Cummins 5.0L 12-Valve 6BT diesel engine.
What kind of diesel truck is most reliable?
10 Most Reliable Diesel Pickup Trucks You Can Buy Used
- 8/10 2007 Chevrolet 3500HD.
- 7/10 1993 Dodge W250.
- 6/10 2018 Dodge Ram 3500.
- 5/10 2020 Ford F-350 Super Duty.
- 4/10 2017 Nissan Titan XD.
- 3/10 2020 GMC Sierra 1500.
- 2/10 2020 Chevrolet Silverado 1500.
- 1/10 2018 Ford F-150.
What years of Duramax to avoid?
The Duramax has a long history. We recommend avoiding any GM vehicle equipped with the 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, and 2010 Duramax engines. In short, the newer model years show improved performance.
Will diesel fuel become obsolete?
Commercial vehicles to continue to use petrol and diesel until 2040. All new passenger cars. Commercial vehicles to continue to use petrol and diesel until 2035.