LBZ Weak Links
The LB7 and LLY engines were known for rod weakness, but the LBZ had trouble with its cast-aluminum pistons. In higher-power applications, the pistons were very prone to cracking. LBZ Duramax upgrades with larger injectors and a larger turbo caused the majority of failures.
Subsequently, What is the best year for a Duramax?
Any generation duramax will pull a 3 horse trailer handily. They all have their own quirks and issues that can be resolved, and once they are, you’ve got a reliable, strong truck for many miles. Most will say the 06-07 LBZ model to be the most desirable and reliable platform.
then, How many miles will a Duramax last?
A poorly-maintained engine can quickly fall into disrepair before it even reaches the 100,000-mile mark while a well-maintained Duramax pickup truck should last 400,000 or even 500,000 miles.
Thereof What is the most reliable Duramax? Released in 2017, the L5P is the latest a greatest version of the Duramax. It is substantially more durable than previous Duramax models and features an impressive 445 HP and 910 lb-ft of torque. The L5P replaced the LML in Chevy Silverado pickup trucks.
What is the most sought after Duramax?
Perhaps the most desired of all Duramax models are the ’06-’07 Classic body style trucks.
19 Related Questions Answers Found
What is considered high mileage for a Duramax?
However, as with the Duramax and Cummins engines, between 350,000 and 500,000 miles is usually considered high mileage for a Powerstroke engine. Maintenance of the truck and the engine is the key to getting the most miles.
What is the most reliable Duramax engine?
Released in 2017, the L5P is the latest a greatest version of the Duramax. It is substantially more durable than previous Duramax models and features an impressive 445 HP and 910 lb-ft of torque. The L5P replaced the LML in Chevy Silverado pickup trucks.
How many miles will a Duramax 6.6 last?
GM has given the engine a 95% rating at 200,000 miles, meaning 95% of all engines should reach 200,000 miles of service, based on durability and wear.
Which is better Duramax or Cummins?
More horsepower means faster acceleration whether you’re towing or not. The current Duramax 6.6L L5P diesel wins this category with 445 horsepower. The current 6.7L 24V Ram Cummins diesel engines produce 400 horsepower. Historically, horsepower has swayed slightly in favor of the Duramax versus the Cummins line.
How much does it cost to replace injectors on a 6.6 Duramax?
How much does it cost to replace injectors on LLY? 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.
How long will a 6.6 Duramax last?
GM has given the engine a 95% rating at 200,000 miles, meaning 95% of all engines should reach 200,000 miles of service, based on durability and wear.
What year Duramax has injector problems?
What year Duramax has injector problems? The LB7 Duramax built from 2001 – 2004.5 is known for injector failure. The good news is the replacement injectors you purchase from us incorporate several updates to help prevent repeat failures.
How much HP can a Allison 1000 handle?
As you’ve probably deduced up to this point, the stock Allison will handle roughly 350 to 400-rwhp in five-speed form and 425 to 450-rwhp in six-speed trim. However, if you push things past that point the clutches will eventually slip and bring on the Allison’s notorious “limp mode” condition (i.e. limp home mode).
Is the Chevy 6.6 diesel any good?
The 6.6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. … However, like any engine (or any complex mechanism for that matter), the Duramax engine and Allison 1000 transmission have some common problems inherent to their design.
How many MPG does a 6.6 Duramax get?
This Duramax 6.6-liter V-8 gets 17 to 19 mpg on the highway.
Is 100k high mileage for a 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.
Is the Duramax a good engine?
The 6.6L Duramax has been in production since 2001 and has proved, on a large scale, to be a relatively reliable and durable platform. While various versions of the engine have surfaced over the years, all generations of the Duramax are based on the same foundation.
What is the fuel mileage for a 6.6 Duramax diesel?
This Duramax 6.6-liter V-8 gets 17 to 19 mpg on the highway.
How much does it cost to rebuild a 6.6 Duramax?
Rebuilding a Dmax is basically the same as any other engine, just a lot bigger parts and quite a bit more things to remove to actually get to the engine itself. You’re looking at ~$3000+ to rebuild one if you do it yourself depending on how far you decide to go and what machine work you’ll need.
Why did Nissan get rid of Cummins?
But the decision to ax the diesel motor is telling: An oil-burner from a brand like Cummins was supposed to be a coup for Nissan, a way for it to make headway in a market that heavily favors trucks built by American manufacturers.
What is the most reliable diesel truck engine?
The 7.3L Powerstroke is still considered one of the most reliable diesel engines ever made. It also has plenty of power for most applications, with 500 pound-feet of torque and 235 horsepower. It was built for the long haul, too with an air-to-air intercooler, oil-based fueling, and durable internal hard parts.
What’s the most reliable diesel engine?
What is the Most Reliable Diesel Engine Ever? The most reliable diesel engine ever made was the 5.9L Cummins 12-Valve 6BT. The 5.9L 12-Valve has million-mile durability. It came factory with a 230hp, 440lb/ft of torque and an inline P7100 injection pump.
How much does it cost to replace injectors in a Duramax?
The total cost to have a mechanic replace 8 injectors on an LB7 Duramax can range from $4000 – $5000 CAD, depending on what other work is performed at the same time.
How do I know if my Duramax needs injectors?
Symptoms of Failing Duramax Fuel Injectors
- Excessive Smoke.
- Power Loss.
- Rough Idle.
- Fuel in Oil.
- High Return Fuel.
- No Start.
When should diesel injectors be replaced?
Diesel fuel injectors generally have a shorter lifespan than their predecessors, meaning they need to be replaced more frequently for optimal performance. The life expectancy of a good quality diesel fuel injector is around 150,000 kilometres. They should be checked out by a professional at around this time.
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