Duramax Engine Repair Services, Denver

If you are searching for dependable Duramax engine repair services in Denver, you have come to the right place. Duramax engines, known for their power, durability, and long lasting performance, are widely used in GMC and Chevrolet trucks.

Proper working of Duramax engine is essential for your business. Thus, 303 Truck Repair offers reliable Duramax engine repairs and rebuilds. Our professional repair services help keep your vehicle on the road, minimizing downtime. We specialize in Duramax engines, offering full service repairs, preventative maintenance, engine diagnostics for all Duramax engine models.

From minor glitches to major issues, our team handles every job with precision. Also, we provide mobile Duramax engine repairs, meaning we come to you, no mater the time or location. So, trust our team to provide roadside assistance, whenever you need it in Denver.

Duramax Truck Repair Services Denver CO
 Get Expert Service Today | +1 (303) 261-3660

Denver’s #1 Duramax Engine Repairs For All Makes & Models

We provide reliable and affordable repairs for all Duramax engine models in Denver, Colorado. Our local mechanics are known for their precision, reliability, and deep understanding of diesel engine performance. We specialize in diagnosing and repairing a wide range of issues specific to Duramax engines.

From fuel system complications to cooling and emission system problems, we handle it all with accuracy and care. Using advanced diagnostics and high-quality parts, we ensure every repair increases engine longevity. We have experience in repairing the following models of Duramax engines:

  • LB7 (2001 to 2004)
  • LLY (2004 to 2005)
  • LBZ (2006 to 2007)
  • LMM (2007 to 2010)
  • LML (2011 to 2016)
  • LGH (2010 to 2011)
  • L5P (2017 to 2023)
  • L5P Gen2 (2024 to Present)
  • L5D (2019 to Present)
  • LWN (2.8L, 2015 to 2022)
  • LM2 (3.0L, 2019 to Present)
  • LZ0 (3.0L, 2023 to Present)

With a strong focus on minimizing downtime and preventing future issues, we help keep your trucks running at peak performance.

Call Now: +1 (303) 261-3660

24/7 Mobile Duramax Engine Repair Services Available in Denver & Nearby Areas

We offer emergency Duramax engine repair services across Denver. Our service areas consists of Castle Rock, Arvada, Greenwood Village, Centennial, Littleton, Highlands Ranch, Aurora, Thornton, Commerce City, Boulder, Englewood, Westminster, Sheridan, Lakewood, and more!

Typical Duramax Engine Repairs We Offer in Denver

When looking for Duramax engine repair near me in Denver, call our team of ASE certified mechanics. They are trained to handle Duramax engine repairs of all types and complexities. Here, we have listed some common issues Denver Duramax engine users face, and how we repair them.

Injector Failures

The LB7 Duramax is known for injector failures caused by cracking or leaking. These can lead to white smoke, rough idling, and poor fuel economy. We diagnose the faulty injectors and replace them with performance-grade injectors, ensuring reliability.

Head Gasket Failures

Overheating or high boost pressure can cause head gaskets to fail, especially in high-mileage trucks. We perform cylinder leak-down and compression tests to confirm the diagnosis and use upgraded head gaskets and ARP studs to prevent future issues.

EGR & DPF System Failures

Modern Duramax engines use advanced emissions systems, like EGR valves and Diesel Particulate Filters (DPF). These components can clog or malfunction. Symptoms include reduced fuel economy, check engine lights, and limp mode. Our technicians offer complete diagnostics and cleaning or repairs.

Turbocharger Wear

The VGT turbos in newer Duramax engines can suffer from stuck vanes, worn bearings, or actuator failures. We offer thorough turbo inspections and repairs or replacements using premium components.

Glow Plug and Electrical Issues

Denver’s cold climate can lead to hard starts if glow plugs or controllers fail. We test and replace these parts to ensure reliable operations in the cold weather.

Fuel System Air Leaks and Lift Pump Failures

Air leaks in the fuel system or a failing lift pump can cause starting issues and loss of power. Our team uses smoke testing and high-precision diagnostics to locate leaks and replace pumps.

Call to Get Services

Services

General Repair
Engine & Drivetrain
Truck & Fleet
Tire & Wheel
Towing & Roadside
Specialized Repairs
Cooling & Heating
Brakes Suspension
Electrical & Diagnostics
Exhaust & Emissions
Fluids & Lubrication
Bodywork & Structural
Fabrication & Welding

24/7 online support

We are Available 24/7

+1 (303) 261-3660

info@303truckrepair.com

Our Portfolio Featuring Duramax

  • Duramax Truck Repair Near Denver
  • Duramax Truck Repair Near Denver
  • Same Day Duramax Truck Repair Denver

Frequently Asked Questions

Driving with a bad injector risks engine misfires, poor fuel economy, and further engine damage. It is best to address injector issues immediately. Call our professional mechanics today!

Repairing a Duramax engine in Denver varies based on the issue and parts required. We focus on offering transparent and honest pricing. Contact our local team with your vehicle issues and get a free quote!

Yes! We provide fleet Duramax repair services with priority scheduling, maintenance plans, volume discounts, and service tracking to keep your fleet running efficiently and minimize downtime.

With proper care, Duramax engines can last over 300,000 miles. Regular oil changes, fuel filter replacements, and timely repairs are essential for engine longevity.

Customer Reviews

Google Reviews

5 star

5.0 Stars | 728 reviews

Mike Roberts

During a road trip, our truck needed emergency Duramax engine repairs. The team worked quickly and got us back on the road in no time. Their fast response and expertise saved the day.

Google Reviews

5 star

5.0 Stars | 728 reviews

Kevin Johnson

I call them regularly for Duramax engine maintenance on my fleet. Every visit has been seamless, with thorough inspections and friendly service. My trucks run efficiently because of their reliable team.

Google Reviews

5 star

5.0 Stars | 728 reviews

James Smith

The Duramax engine in my truck was acting up, and I didn’t know where to turn. They diagnosed the issue and repaired it perfectly. I couldn’t recommend their service more for heavy truck needs.

Google Reviews

5 star

5.0 Stars | 728 reviews

Noah Williams

I needed detailed Duramax engine diagnostics before a big haul. This team provided a precise and clear report, explained everything thoroughly, and fixed the minor issues. Their preventive care saved me from potential downtime.

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