Quick Answer: How Reliable Are The Chevy Duramax Motors?

Is the 6.6 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. 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 good is the Duramax diesel engine?

The judges, who tested the engine in a 2020 Sierra 1500 Crew Cab, remarked that the 3.0L Duramax Turbo-Diesel stood out with its smooth, responsive and quiet driving experience. In their opinion, the engine is well suited to different driving situations, from stop-and-go traffic to giving power on demand.

How many miles will a 6.6 Duramax last?

The Duramax™ 6.6L V8 Turbo Diesel Engine is sold with a warranty of 100,000 miles/160,000 kilometers. The Duramax™ has been tested to survive upwards of 200,000 miles/320,000 kilometers. The Duramax™ powertrain is designed for reliability, peak horsepower and torque within its design limits.

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How long does a Duramax engine 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 is most reliable?

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.

What is the most sought after Duramax?

Perhaps the most desired of all Duramax models are the ’06-’07 Classic body style trucks.

What’s better Cummins or Duramax?

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.

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 do Duramax diesels 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.

Is 200k miles alot for a Duramax?

Earlier Duramax LLY models did have injector issues, but at 200k miles they’ve probably been replaced already. I too agree 200k isn’t a lot of miles for the engine, but it IS alot of miles on the chassis, probably on its 3rd or 4th set of wheel bearings by then.

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How much does it cost to replace injectors on a 6.6 Duramax?

The total cost for Duramax injector replacement is $2,000 and $6,000. The labor costs associated with this job can range from $800-$1,500. Related repairs could be needed if you have driven for a long time with dirty fuel injectors.

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.

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 often should you change oil in a Duramax?

If your vehicle’s manufacturer recommends a mileage interval greater than 7500 miles, you will need to change your vehicle’s motor oil using DuraMAX synthetic motor oil at least one time per year and as often as recommended by the vehicle manufacturer (or before every 10,000 miles, whichever occurs first).

How much is a new 6.6 Duramax?

Depending on on the rebuilder, a Duramax engine replacement is going to cost at least $15,000. Depending on the year and other potential issues or wishes of the customer, you could expect a range likely between $15,000 and $25,000 for Duramax engine replacement.

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