Diesel Repair Services in Bremen, OH

Fueling Your Passion for Diesel Performance

At Unlimited Diesel Performance, we live and breathe diesel. Since 2004, we’ve been dedicated to providing expert diesel repair and maintenance services with a commitment to transparency, innovation, and excellence. What started as a hobby quickly grew into a thriving business, fueled by our passion for diesel performance and a dedication to our clients. Today, we are proud to offer cutting-edge services, custom solutions, and unmatched expertise that diesel enthusiasts and truck owners can trust.

Our slogan, “Fueling the Addiction,” reflects our drive to keep your diesel truck operating at peak performance. Whether you’re maintaining, repairing, or upgrading, we’re here to ensure the job is done right the first time.

Comprehensive Diesel Engine Expertise

At Unlimited Diesel Performance, we specialize in servicing Powerstroke, Cummins, and Duramax engines. From routine maintenance to major repairs, we provide the care your light-duty diesel truck deserves.

Powerstroke Diesel Engines (1994 and Newer)

Known for their power and reliability, Ford Powerstroke engines are a favorite among truck owners. From the iconic 7.3L to the advanced 6.7L models, we handle:

High-pressure oil pump repairs
EGR cooler replacements
Turbocharger repairs
Head gasket replacements
Fuel injector rebuilding and replacements
Fuel system contamination kits
DCR conversions

Cummins Diesel Engines (1989 and Newer)

Cummins engines are celebrated for their durability, but even the toughest engines need expert care. We provide:

VP44 injection pump repairs
Turbocharger and EGR cooler services
Valve seat and head gasket replacements
Grid heater nut failure fixes

Duramax Diesel Engines (2001 and Newer)

Duramax engines combine power, efficiency, and advanced technology, making them a favorite for light-duty trucks. Our services include:

Injector replacements
CP4 injection pump conversions
Turbo vane cleaning and replacements
Emissions system diagnostics and repairs
Head gasket repairs

Diesel Repair and Maintenance Services

At Unlimited Diesel Performance, we provide a full range of diesel repair services to keep your truck running smoothly:

Diesel Engine Diagnostics

Using tools like the Snap-On Zeus scanner and Ford Integrated Diagnostic System (IDS) and Ford Diagnostic Repair System (FDRS) scan tools, we diagnose issues such as dash lights, emissions system problems, and more, ensuring precise and efficient repairs. Here’s a look at some of the diagnostic tools we use:

Snap-On Zeus Scanner & 4-Channel Oscilloscope

The Snap-On Zeus is more than just a scan tool—it features a 4-channel oscilloscope that lets us verify electronic signals in real time. It provides fast and accurate troubleshooting of electrical, emissions, and sensor-related issues.

Ford Integrated Diagnostic Software (IDS)

The Ford IDS system is factory-level diagnostic software used for 1996+ Ford, Lincoln, and Mercury vehicles. It works with Ford’s official communication modules (VCM, VCM II, VCMM, and VMM) to provide complete dealership-grade diagnostics, software updates, and calibration files.

Ford Diagnostic & Repair System (FDRS)

For 2018+ Ford vehicles, we use FDRS, Ford’s latest cloud-based diagnostic software. This next-gen system offers:

More advanced diagnostic tools than IDS
Real-time software updates from Ford’s network
Compatibility with VCM II, VCMM, and J2534 pass-through devices

Fuel Injection Services

Our in-house fuel injector rebuilding services are trusted nationwide. We specialize in 7.3L Ford Powerstroke fuel injectors, and custom solutions for all other Powerstroke, Cummins, and Duramax models.

What Makes Our Fuel Injector Services Different?

At Unlimited Diesel Performance, we’ve built a reputation for excellence in fuel injector services. Here’s what makes us stand out:

Complete In-House Rebuilding Process: Unlike many shops that outsource fuel injector services, we handle everything in-house. This allows us to maintain full control over quality, ensure faster turnaround times, and guarantee consistent, reliable results.
Advanced Testing and Precision Tools: We utilize state-of-the-art flow benches to rigorously test every rebuilt injector, ensuring optimal performance and longevity. Our precision-driven process means every fuel injector meets or exceeds factory specifications.
Specialization in 7.3 Powerstroke Injectors: Our expertise with 7.3 Powerstroke injectors is unmatched. We’ve refined our rebuilding process to address common issues like debris contamination, poppet valve wear and armature clearances, delivering injectors that provide lasting performance.
Experience Across All Major Diesel Brands: From Ford Powerstroke to Cummins and Duramax, we service injectors for all major diesel brands. Whether it’s repairing CP3/CP4 fuel injection systems or addressing unique brand-specific issues, we have the expertise to get the job done right.
Nationwide and International Reach: Our injectors are trusted by customers across the U.S., Canada, Australia, and Europe. With injectors rebuilt and tested in-house, we offer a level of quality and precision that earns loyalty worldwide.

Emissions Diagnostics and Repairs

We specialize in diesel emissions system repairs, including Diesel Exhaust Fluid (DEF), Diesel Particulate Filters (DPFs), Exhaust Gas Recirculation (EGR), and Selective Catalytic Reduction (SCR) systems. While DEF is part of the SCR system, we address each component individually to ensure regulatory compliance and optimal engine performance.

Steering and Suspension Repairs

We repair and replace critical components like ball joints, tie rod ends, and shocks to ensure your truck handles safely and performs reliably on the road.

Brake Repair

We provide expert brake repair services, including rotor replacements and system inspections, to ensure your diesel truck stops safely and reliably under any load.

Preventative Maintenance

Regular maintenance extends your truck’s life. Our services include:

Filter replacements for fuel, air, and cabin systems
Fluid services for coolant, brake, transmission, and power steering systems
Brake repairs for reliable stopping power
Full synthetic oil services and oil filter replacements to protect engine components, enhance performance, and extend engine life

Factory Recommended Maintenance

We offer comprehensive 5-K, 15-K, 30-K, 60-K, and 90-K mile maintenance services to keep your diesel truck running at peak performance.

Drivetrain and Transmission Services

Drivetrain Repairs: Differentials, driveshafts, axles, and CV joints
Transmission Services: Replacement and maintenance for smoother operation

Electrical System Repairs

We address interior and exterior electrical issues, including lighting systems, battery replacements, and reprogramming services.

Diesel Engine Rebuilds

Our automotive machine shop helps provide precise engine rebuilds, restoring your engine to peak performance with OEM-quality standards.

Custom Machine Shop Services

Our state-of-the-art machine shop is a cornerstone of our commitment to quality and precision. Featuring the latest in machining technology, we ensure every repair, rebuild, and custom part exceeds industry standards.

What Sets Our Machine Shop Apart?

Four-Axis CNC Mill: This advanced equipment, the Rogers Machine Company VM 5020, allows us to perform precision machining on engine blocks, cylinder heads, and custom parts with unparalleled accuracy.
In-House Engine Rebuilds: From basic repairs to complete engine overhauls, we handle every step of the process in-house to maintain the highest quality control.

Our machine shop not only supports our diesel repair services but also enables us to offer innovative solutions, reduce lead times, and deliver lasting results.

Why Choose Unlimited Diesel Performance?

Your diesel truck is more than just a vehicle—it’s your livelihood, your passion, and your pride. Here’s why drivers choose Unlimited Diesel Performance:

Unmatched Expertise: With over 20 years of experience working on Powerstroke, Cummins, and Duramax engines, we deliver reliable results every time.
Transparency You Can Trust: Every truck undergoes our Complete Vehicle Health Inspection, complete with photos, videos, and detailed notes so you can see exactly what’s going on.
Nationwide Warranty: As a NAPA Auto Care Center, we back all repairs with a 3-year/36,000-mile nationwide warranty.
Client-Focused Convenience: From early bird drop-off to local shuttle services, we make it easy to get the care your diesel truck needs.
Flexible Financing Options: We understand that diesel repairs and upgrades can be a significant investment. That’s why we offer financing through Lendmark, making it easier for you to get the services you need without delay.

Schedule Your Diesel Repair Today

When you need reliable, expert diesel repair, trust Unlimited Diesel Performance to get the job done right. From diagnostics to custom upgrades, we’re here to keep your truck running at its peak.

Call us today at (740)-569-1319 or visit us at 408 Logan-Thornville Rd NE, Bremen, OH 43107. We proudly serve truck owners in Bremen, OH, and surrounding areas, including Lancaster and Columbus. Whether you’re nearby or passing through, our shop is your local destination for diesel repairs and maintenance. Let us help fuel your passion for diesel performance!