What kind of problems do Duramax trucks have?

what kind of problems do duramax trucks have

What kind of problems do Duramax trucks have?

The LB7 Duramax is more prone to head gasket failures than future generations of the Duramax engine. Despite this, head gasket failure usually doesn’t occur until over 100,000 miles, so it’s not nearly as common as it is in 6.0L Powerstroke engines. LB7 Duramax head gasket problems can occur for a couple of reasons. Water pump failure is a relatively common weak point on Duramax trucks. While the seal issues found on LB7 trucks have been largely solved, the LLY Duramax can still suffer from water pump failure. Over time and at higher mileage, the seals in the factory water pumps can fail.

What are the problems with the 6.6 Duramax?

The 2001 to 2016 Duramax diesel is largely susceptible to fuel starvation, air in the fuel lines, and difficulty bleeding the fuel system. This is largely due to the fact that these model year engines do not use an electric low pressure lift pump to move fuel from the tank to the injection pump.

What year Duramax should I stay away from?

Quick Answer: Avoid Duramax Year Models

The Duramax has a long history. We recommend avoiding any GM vehicle that comes 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.

Is a Duramax diesel reliable?

How Reliable Is The Duramax Diesel? The engine is very durable and reliable, but there are some issues that arise as the first models reach 100,000 miles. As a result, GM eventually corrected the original design and offered a 200,000-mile warranty on the updated Duramax parts, even though they recognized the problem.

What are common Duramax problems?

Other Duramax LLY problems included the following: Head gasket failure. Injector harness chafing. Water pump failure.

What are the problems with the 6.6 Duramax?

The 2001 to 2016 Duramax diesel is largely susceptible to fuel starvation, air in the fuel lines, and difficulty bleeding the fuel system. This is largely due to the fact that these model year engines do not use an electric low pressure lift pump to move fuel from the tank to the injection pump.

What are common Duramax problems?

Other Duramax LLY problems included the following: Head gasket failure. Injector harness chafing. Water pump failure.

How many miles will a Duramax 6.6 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.

Is Duramax better than 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.

What year Duramax have injector Problems?

What year Duramax has injector problems? The LB7 Duramax built from 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 does it cost to replace a Duramax engine?

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.

Do all Duramax have Allison transmissions?

Registered. They all came with the allison 5spd 01-early 05 models and allison 6 spd on the newer modes i believe late 05-08, very few came with a zf6 manual.

What year Duramax gets best fuel mileage?

#1 – Chevrolet Silverado 2500HD 14.5 MPG

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Is 200 000 miles alot for a Duramax?

Even when used extensively for towing and hauling, Powerstroke, Cummins and Duramax diesel trucks typically last well beyond 100,000 miles. Because of that, .

What is the average life of a Duramax diesel?

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.

What is considered high mileage for a Duramax?

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 generation Duramax is best?

6.6L Duramax LB7 – Overall Best Diesel Engine. The LB7 Duramax was first introduced in 2001 when GM discontinued its 6.5L Detroit diesel. The Duramax was superior in performance to the Detroit and marked an important turning point for Chevrolet pickups and GMC trucks in the diesel market.

What kind of fuel mileage does a 6.6 Duramax get?

This Duramax 6.6-liter V-8 gets 17 to 19 mpg on the highway. It has not yet been officially tested for in-town miles per gallon. This Sierra comes with a six-speed automatic transmission.

What are the problems with the 6.6 Duramax?

The 2001 to 2016 Duramax diesel is largely susceptible to fuel starvation, air in the fuel lines, and difficulty bleeding the fuel system. This is largely due to the fact that these model year engines do not use an electric low pressure lift pump to move fuel from the tank to the injection pump.

What are common Duramax problems?

Other Duramax LLY problems included the following: Head gasket failure. Injector harness chafing. Water pump failure.

Which diesel truck is the most reliable?

  • Dodge 1991 ½ – 1993 with 5.9-liter 12-Valve Cummins.
  • What are the most common problems with Duramax engines?

    Injector issues are common across the LB7 and LBZ engines. Duramax employs a lift pump, also known as a low-pressure pump, to move diesel from the fuel tank to the high-pressure pump. The fuel filter housing seal lets go and allow air to sneak in, this commonly contributes to fuel starvation.

    Do Duramax trucks have water pump problems?

    Water pump failure is a relatively common weak point on Duramax trucks. While the seal issues found on LB7 trucks have been largely solved, the LLY Duramax can still suffer from water pump failure. Over time and at higher mileage, the seals in the factory water pumps can fail. This frequently occurs after 80-100,000 miles.

    What makes the Duramax different?

    The central idea behind the Duramax’s design was to build a diesel engine that could fit in the same spaces as a typical gasoline engine in a full-size pickup truck. This was no small feat. Diesel engines are typically larger and heavier than their gasoline counterparts.

    What kind of engine does a Chevy Duramax have?

    The LLY Duramax engine found on 2004-2006 Chevrolet/GMC HD trucks is the second generation of the Duramax line. It can last hundreds of thousands of miles, but it still has its fair share of issues. Thankfully, the LB7 injector problems were resolved, but some new problems revealed themselves.