icon-phone 619.235.0961    icon-email Email

When Downtime Is Not An Option.



6.6l Duramax Engine Repair: Is Your Engine Turbo Diesel?

6.6l Duramax Engine Repair: Is Your Engine Turbo Diesel?

Like all machines that contain moving parts, vehicles will eventually suffer wear that causes one or more components to fail or function at a reduced efficiency. For instance, your engine may end up requiring glow plug replacement or 6.6l duramax fuel injector repair in San Diego.

But what if you don’t need to replace the glow plugs or repair the fuel injector at all, because it’s actually your turbocharger that’s acting up? Knowing what technologies your engine uses and whether the 6.6 Duramax is a turbo diesel are critical to being able to correctly diagnose a problem and avoid paying for Duramax injector replacement when it’s unnecessary.

What is a turbo diesel engine?

Turbo diesel engines, such as the 6.6l Duramax turbo diesel engine, are engines that are equipped with a turbocharger. A turbocharger is a modern component that enables diesel engines to achieve lower emission levels, improved fuel efficiency, and higher power outputs.

What is high mileage for a Duramax diesel?

It depends. The truth is, there is no single mileage that is considered to be “too high”. Some Duramax owners claim that 100,000 miles marks a heavily-used engine, while others refuse to consider anything below 350,000 miles to be high mileage.

There are a number of factors that must be taken into account when evaluating the health of a truck. How well was it maintained? Was the Duramax engine oil changed regularly? After all, an inconsiderate or incompetent owner can get a truck with only 50,000 miles into worse shape than a 300,000 mile truck that has been lovingly taken care of.

There is also the terrain to consider. 200,000 miles of tourist visits to the San Diego Zoo won’t wear out the engine nearly as much as 50,000 miles across rough, high-moisture terrain. Regardless of mileage, it’s best to avoid purchasing a truck that’s already rusting.

How many miles will a 6.6 Duramax last?

Most reputable organizations, such as the Association of Diesel Specialists, would agree that the 6.6l Duramax is one of the most reliable diesel motors available today. Provided proper maintenance, it can easily hit the 350,000 mile mark, with some users claiming 400-500,000 miles is the norm.

In fact, one particular 2005 GMC is known to have driven more than 750,000 miles while staying in great condition. As rugged and reliable as the 6.6l Duramax engines are, you should still be careful when shopping for a used Duramax truck.

When buying from a General Motors dealer, always ask for a “GM Vehicle Inquiry System” summary printout. This will give you an insight into how many times the vehicle has been serviced at a GM dealership, and what repairs (if any) were done.

What is the horsepower of a 6.6 Duramax?

The amount of horsepower a Duramax 6.6l engine has depends on the model. Advancements in engineering and diesel engine design have allowed newer Duramax models to boast horsepower and torque levels that have previously been thought unfeasible.

A horsepower and torque levels comparison of different Duramax models:

  • 2001 - 235 horsepower and 500 lb-ft of torque
  • 2004 - LB7: 300 hp and 520 lb-ft, LLY: 310 hp and 520 lb-ft
  • 2006 - LLY: 310 hp and 605 lb-ft, LBZ: 360 hp and 650 lb-ft
  • 2007 - LBZ: 360 hp and 650 lb-ft, LMM: 365 hp and 650 lb-ft
  • 2010 - 365 hp and 650 lb-ft
  • 2016 - 397 hp and 765 lb-ft
  • 2018 - 445 hp and 910 lb-ft

Who provides first-rate 6.6l Duramax fuel injector repair in San Diego?

PCE San Diego has been a leader in diesel engine repair and maintenance for more than forty years. Our extensive experience and phenomenal track record mark us as the ideal choice for all your 6.6l Duramax engine repair or replacement needs.

Reach out to us today, or visit us at our premises. We have the tools and the know-how needed to solve any diesel engine-related issue.

  1. Make Contact
Please enter a name.
Please enter a valid email address.
Please enter a valid phone number.
Invalid Input
Invalid Input
I Would Like More Information About:

Invalid Input
Send me your newsletter:

Invalid Input

Our Guarantee

At PCE, we pledge to provide you with the highest level of integrity and expertise; to recommend only what’s good for you and your situation; to use all resources possible to minimize downtime; to give the best value for your dollar; and to stand by our work and our word.

Contact Us

Corporate Headquarters
1620 Rigel Street
San Diego, CA 92113
Phone: (619) 235-0961
Fax: (619) 233-5096 
Diesel & Motor Division
3376 Main Street
San Diego, CA 92113
Phone: (619) 235-0961
Fax: (619) 687-0038 
99-1221 Halawa Valley Street
Aiea, HI 96701-3281
Phone: (808) 486-6600
Fax: (808) 845-1652 
920 West Marine View Drive
Everett, WA 98201-1300
Phone: (425) 257-9065
Fax: (425) 259-6851