Diesel Repair Near Junction City & New Lexington, OH for Powerstroke, Cummins & Duramax Trucks
If your diesel truck is your livelihood, your pride, or both, you already know a general shop won’t cut it. Located at 408 Logan-Thornville Rd NE in Bremen, Ohio, Unlimited Diesel Performance is just 10–15 minutes from Junction City and about 15 minutes from New Lexington via US-22.
We specialize exclusively in the Powerstroke, Cummins, and Duramax platforms that power Perry County’s work trucks. From fuel injection to in-house engine machining, we bring capabilities to this region that most drivers have to go to Columbus to find.
Why Perry County Trucks Need a Diesel Specialist
A general shop in Junction City or New Lexington can handle basics. But Powerstroke fuel system failures, Cummins injection pump issues, and Duramax CP3 conversions are not basics. These repairs require platform-specific knowledge, factory-level diagnostic tooling, and in-house machining capability that most shops in this region simply don’t have.
At Unlimited Diesel Performance, we run a Snap-On Zeus scanner with a four-channel lab scope, a Four Axis CNC Mill for in-house engine machining, and a flow bench that tests every fuel injector before it goes back in your truck. That’s not equipment you’ll find at a general shop. That’s why drivers from across Perry County make the trip to Bremen.
Common Diesel Issues We Fix in Junction City and New Lexington
Powerstroke Problems
- 6.7 CP4 Injection Pump Failure: Rollers collapse, lifters twist sideways, and metal debris travels through the entire fuel system. We convert these to the S&S Diesel DCR Pump, the right fix for this platform.
- 6.0 Head Gaskets and EGR Coolers: Losing heat at a stop or running hot under load points to a 6.0 head gasket or EGR cooler failure. We handle both.
- 6.4 and 6.7 Lifter and Bearing Failures: Both platforms have known lifter and main bearing failure histories that require thorough diagnostics before they become full engine replacements.
- 7.3 Fuel Injector Issues: We rebuild 7.3 Powerstroke injectors entirely in-house, testing every unit on our flow bench before reinstallation.
Cummins Problems
- VP44 Pump Failures (1998–2002): Typically caused by lift pump failure. When the lift pump goes, the VP44 follows.
- CP4 to CP3 Conversions (1999–2020): We replace failing CP4 pumps with the more reliable CP3 setup on Cummins platforms.
- Valve Seat Failures (2003 and newer): Seats can drop into the combustion chamber and cause catastrophic failure. We have a proven fix.
- 2019 and Newer Lifter Failures: Roller lifter and camshaft failures are increasingly common on newer Cummins trucks.
- Injector Knock: Usually an injector issue. We replace with genuine Bosch, S&S Diesel, or DDP injectors matched to your goals.
Duramax Problems
- LB7 Injector Failures (2001–2004): We replace with Bosch or S&S Diesel components matched to your truck’s use.
- CP3 Conversions (2008–2016): Injection pump failures in this range get resolved with a CP3 conversion.
- Turbo Failures and Stuck Vanes: Soot-caked vanes and turbo failures are common across all generations. We diagnose, repair, and replace.
- Allison Transmission Limp Mode: We handle transmission replacement and maintenance within your truck’s class.
What We Fix and Service for Perry County Diesel Trucks
- 7.3 Powerstroke injector rebuilding (in-house, flow bench tested)
- Injector replacement with Bosch, S&S Diesel, or DDP components (Cummins and Duramax)
- S&S Diesel DCR Pump conversion for 6.7 Powerstroke
- CP3 pump conversions for Cummins and Duramax
- Diesel engine diagnostics, repair, rebuild, and replacement
- Head gasket replacement
- Turbocharger repair and replacement
- EGR cooler repair, DEF and SCR system service, DPF replacement
- Ball joints, tie rod ends, control arms, shocks, and struts
- Rotor and brake pad replacement (rotors replaced, not turned)
- Diesel emissions diagnostics
- Unlimited Diesel Performance Complete Vehicle Health Inspection on every vehicle
Serving Junction City, New Lexington, and Perry County
We sit just off the road between Junction City and Bremen, making us an easy stop for Perry County drivers heading west on US-22. New Lexington, the county seat, is about 15 minutes south near the Perry County Courthouse. Whether you’re coming from the farmland around Junction City or from downtown New Lexington, the drive is short and the repair gets done right.
We regularly serve diesel truck owners from:
- Lancaster (about 20 minutes away)
- Logan and the Hocking Hills region
- Columbus, New Albany, and Circleville
- Zanesville, Newark, Heath, Pataskala, and Pickerington
We’ve had customers drive in from West Virginia, Kentucky, and Indiana for our fuel injection and machine shop services. If the job needs to be done correctly, the drive is worth it.
Why Junction City and New Lexington Drivers Choose Unlimited Diesel Performance
Unlimited Diesel Performance specializes in diesel platforms with in-house machine shop capability. Here’s what sets us apart:
- In-House Machine Shop: We machine engine blocks and cylinder heads on our Four Axis CNC Mill, cutting out the delays and quality issues that come with outside shops.
- 7.3 Powerstroke Injector Rebuilding: We tear down, ultrasonically clean, rebuild with new components, and flow bench test every injector in-house.
- S&S Diesel DCR Pump Conversions: For 6.7 Powerstroke owners facing CP4 failure, we install the S&S Diesel DCR Pump, the most dependable solution for this engine.
- NAPA Auto Care Warranty: Qualifying repairs are backed by a 3-year, 36,000-mile nationwide warranty through the NAPA Auto Care Center program.
- Complete Vehicle Health Inspection: Every vehicle gets our full transparency inspection before we start any work.
- Alliant Power Distributor: We carry OEM-level parts for light-duty diesel trucks and agricultural equipment through our parts department.
- Drop-Off Only: Every truck gets dedicated time and attention.
- Financing Available: We work with Lendmark for customers managing larger repair costs.
FAQs About Diesel Repair Near Junction City, OH
Is there a diesel mechanic near Junction City for farm trucks?
Yes, Unlimited Diesel Performance in Bremen is just 10–15 minutes from Junction City and works on light-duty diesel trucks including those used in agricultural and rural applications. They offer dedicated fuel system capability and in-house machining for the most reliable repairs.
Who fixes Ford Super Duty trucks in Perry County, Ohio?
Unlimited Diesel Performance in Bremen, Ohio specializes in Powerstroke-specific diagnostics and repair for Perry County drivers. With a Snap-On Zeus scanner and factory Ford IDS and FDR scan tools, they go well beyond what a basic scan tool can catch.
Where can I get a 7.3 Powerstroke repaired near New Lexington?
Drivers near New Lexington have a diesel specialist about 15 minutes away that offers in-house 7.3 Powerstroke injector rebuilding with flow bench testing on every unit. Unlimited Diesel Performance brings that level of capability to the region so you’re not driving to Columbus for a reliable repair.
Do diesel repair shops near Junction City service agricultural work trucks?
There is a diesel shop near Junction City that works on Class 2–5 light-duty diesel trucks and carries OEM-level parts through an Alliant Power distributor partnership. Unlimited Diesel Performance is a strong option for agricultural diesel truck owners in the Perry County area.
Schedule Your Diesel Repair Near Junction City Today
If you’re in Junction City, New Lexington, or anywhere in Perry County, Unlimited Diesel Performance is ready to get your diesel running right. Whether it’s a fuel system failure, an engine rebuild, or a steering and suspension issue that’s been slowing you down, our team has the tools, the training, and the in-house machine shop to handle it correctly the first time.
Visit us at 408 Logan-Thornville Rd NE, Bremen, OH 43107, or call 740-569-1319 to schedule your drop-off appointment.