Duramax Diesel Repair Professionals in Bremen, OH
At Unlimited Diesel Performance, we specialize in keeping Duramax diesel engines running at peak performance. Since 2004, we’ve provided expert diagnostics, repairs, and maintenance to help truck owners get the most out of their vehicles. Whether you rely on your Duramax for heavy-duty work or everyday driving, our mission is to fuel your passion for diesel performance by delivering unmatched service and expertise.
Guided by our slogan, “Fueling the Addiction,” we’re dedicated to providing reliable, high-quality repairs for all Duramax models.
Dedicated to Duramax Diesel Performance
At Unlimited Diesel Performance, we’re driven by more than just repairs—we’re guided by a mission to fuel your passion for diesel performance. Our goal is to earn your trust and loyalty through unmatched expertise, exceptional customer service, and a shared enthusiasm for all things diesel. Every service we provide, from diagnostics to complete engine rebuilds, is designed to deliver positive results and ensure you make the right decision—the first time, every time. Whether it’s routine maintenance or tackling complex repairs, we work tirelessly to help you get the most out of your Duramax diesel engine.
Duramax Diesel Engines We Service
We specialize in servicing Duramax diesel engines from 2001 and newer, providing expert care for each model.
LB7 Duramax (2001-2004)
The LB7 Duramax is known for its smooth power delivery and excellent fuel efficiency. Its lack of emissions systems makes it a favorite among enthusiasts, but injector failures and head gasket issues are common challenges for this early model.
LLY Duramax (2004.5-2005)
The LLY Duramax introduced improved emissions control and a variable-geometry turbocharger (VGT) for better throttle response and towing performance. While reliable, it is known for overheating issues, head gasket failures, and EGR system problems, requiring proper maintenance and upgrades.
LBZ Duramax (2006-2007)
The LBZ Duramax is one of the most sought-after Duramax engines, featuring stronger internals and increased horsepower. It offers exceptional reliability and performance, though common issues include injector failure, transmission limitations under heavy tuning, and occasional glow plug failure.
LMM Duramax (2007.5-2010)
The LMM Duramax introduced advanced emissions systems, including Diesel Particulate Filters (DPFs). While environmentally friendly, these components often require maintenance or replacement to maintain performance.
LML Duramax (2011-2016)
The LML Duramax offered increased power and torque for towing and hauling. However, issues like CP4 pump failures and turbo problems can impact performance without proper care.
L5P Duramax (2017-Present)
The L5P Duramax sets the standard for modern diesel engines with redesigned fuel systems and exceptional towing capacity. While reliable, emissions components may need maintenance to ensure optimal performance.
Superior Fuel Injector Services for Duramax Engines
Fuel injectors are a critical component of your Duramax engine’s performance, ensuring efficient fuel delivery and consistent power. At Unlimited Diesel Performance, we offer genuine Bosch or S&S Diesel fuel injectors for all modern Duramax engines, including the LB7, LLY, LBZ, and newer models, that are tailored to your goals and vehicle usage.
Our fuel injectors are not just a local solution—they’re trusted across the U.S., Canada, Australia, and Europe. By maintaining high standards and delivering exceptional service, we’ve earned the loyalty of Duramax owners worldwide.
Advanced Diagnostics for Duramax Injectors
Accurate fuel injector diagnostics are key to identifying issues and preventing further damage. We utilize cutting-edge tools and factory-level diagnostic equipment to pinpoint problems with unmatched precision. Common injector issues we diagnose include:
- Fuel Flow Imbalances: Leading to rough idling or power loss.
- Clogged or Failing Injectors: Caused by debris or fuel contamination.
- Performance Loss: Due to wear, improper calibration, or system contamination.
If you notice symptoms like crank-no-start conditions, reduced fuel efficiency, excessive exhaust smoke, or engine misfires, our team is here to help.
Duramax Diesel Services We Provide
Our comprehensive Duramax services are designed to keep your truck performing at its best. Here’s a look at some of our services:
Engine Diagnostics
We utilize advanced diagnostic tools, including the Snap-On Zeus scanner with its 4-channel oscilloscope, along with GM-specific scan tools, to accurately diagnose Duramax engine issues, from fuel system failures to emissions and electrical problems.
Emissions Diagnostics and Repairs
Our team specializes in diagnosing and repairing DPF, SCR, and EGR systems, ensuring compliance with emissions standards while maintaining performance.
Steering and Suspension Repairs
A stable and smooth ride starts with a strong steering and suspension system. At Unlimited Diesel Performance, we repair and replace ball joints, tie rod ends, shocks and struts and steering racks.
Preventative and Factory-Recommended Maintenance
Protect your investment with routine maintenance, including:
- Full synthetic oil changes
- Filter replacements (fuel, air, and cabin)
- Fluid services (coolant, brake, transmission, and power steering)
Electrical Repairs
Duramax trucks rely on complex electrical systems for optimal performance. Our team resolves issues with battery systems, lighting malfunctions, and ECU programming to keep your truck running seamlessly.
Brake Repairs
We provide comprehensive brake services for Duramax vehicles, addressing uneven wear, hydraulic issues, and rotor replacements to ensure consistent and safe braking under heavy loads.
Duramax Engine Rebuilds
Our engine rebuild services for Duramax engines restore power and reliability, using precision machining and high-quality components to ensure your truck performs like new.
Custom Machine Shop Services
Our in-house machine shop helps provide precision repairs for Duramax engines, including cylinder head machining, engine rebuilds, and more.
Common Duramax Issues We Solve
With years of expertise, we’ve seen and repaired a wide range of Duramax engine issues, including:
LB7 Duramax (2001-2004)
- Injector failures leading to performance and fuel economy problems
- Head gasket issues requiring timely replacement
- Oil cooler and water pump failures causing overheating
LLY Duramax (2004.5-2005)
- Overheating issues due to small radiator and restricted airflow
- Head gasket failures leading to coolant loss and white smoke
- EGR valve & cooler failures affecting performance and emissions compliance
- Fuel injector harness chafing causing intermittent misfires and performance issues
- Turbo vane position sensor failure resulting in sluggish performance and boost problems
LBZ Duramax (2006-2007)
- Injector failure causing poor fuel atomization and rough running
- Glow plug failure with some breaking off in the cylinder
- Transmission limitations as the Allison 1000 struggles with excessive torque from tuning
- Water pump failure leading to leaks and cooling inefficiencies
- CP3 injection pump wear resulting in fuel delivery issues and low rail pressure
LMM Duramax (2007.5-2010)
- DPF failures reducing engine efficiency and power
- EGR system issues affecting emissions compliance
- Turbocharger vane sticking due to soot buildup
LML Duramax (2011-2016)
- CP4 injection pump failures contaminating the fuel system
- Turbo failures impacting boost and towing capabilities
- Injector issues causing poor fuel economy and rough idling
L5P Duramax (2017-Present)
- Occasional emissions system maintenance needs
- Rare turbocharger issues affecting performance under load
General Issues Across All Duramax Models
- Transmission problems with the Allison Transmission, including limp mode when under heavy load
- Injector and fuel system failures reducing efficiency
Why Choose Us for Duramax Diesel Repairs?
At Unlimited Diesel Performance, we combine decades of experience with advanced tools and a commitment to customer satisfaction. Here’s why Duramax owners trust us:
- Extensive Expertise: With years of hands-on experience, we’ve mastered every Duramax model from 2001 to the latest engines.
- Advanced Repairs: From precision diagnostics to custom machining, we offer cutting-edge solutions to complex problems.
- Customer-Centered Service: Our Complete Vehicle Health Inspection ensures complete transparency, giving you clear insights into your truck’s condition.
- Flexible Financing Options: With financing through Lendmark, we make it easier to get the repairs your truck needs.
- Nationwide Warranty: As a NAPA Auto Care Center, we provide a 3-year/36,000-mile warranty on all qualifying repairs, giving you confidence and peace of mind.
Schedule Your Duramax Diesel Repair Today
Trust the experts at Unlimited Diesel Performance to keep your Duramax running strong. From diagnostics to emissions repairs, we deliver results that exceed expectations.
Call us today at (740)-569-1319 or visit us at 408 Logan-Thornville Rd NE, Bremen, OH 43107. Let us help fuel your passion for Duramax diesel performance!