About Our General Diesel Repair Services
Patriot Diesel Service is Cheyenne's full-service diesel repair shop for semi trucks, commercial vehicles, and diesel pickups. Whether you run a Kenworth, Peterbilt, Freightliner, Mack, or Volvo - or a diesel pickup with a Cummins, Power Stroke, or Duramax engine - our technicians have the experience and equipment to diagnose and repair it right.
We operate out of two dedicated locations on Fox Farm Road and serve drivers and fleet operators throughout the Cheyenne area, including those coming off I-80 and I-25.
Diesel Engine Repair and Service
Our heavy-duty shop handles the full range of diesel engine repairs, from minor diagnostics and fuel system work to complete overhauls. We work on all major diesel engine platforms, including:
- Cummins (ISX, X15, ISB, L9, and others)
- Power Stroke (6.7L, 6.4L, 7.3L Ford)
- Duramax (GM/Chevy diesel pickups and medium-duty)
- Detroit Diesel (DD13, DD15, DD16 - Freightliner)
- International/Navistar (A26, N13, DT466)
Whether your truck needs a turbocharger replaced, a fuel injector diagnosed, or a full engine overhaul, we'll give you a straight answer on what it needs and get it done.
Diesel Repair Services
We handle the complete range of diesel repair and maintenance work at our Cheyenne shop. Each of the services below has a dedicated page with more detail:
- EGR System Repair and Cleaning - We service and clean EGR systems on all major diesel platforms. If your truck is throwing codes related to the EGR cooler, valve, or differential pressure sensor, bring it in for diagnosis.
- DPF Service - We service diesel particulate filter systems, including cleaning, sensor replacement, and after-treatment diagnosis. We do not remove or delete DPF systems.
- Diesel Fuel System and Injection Repair - Hard starts, rough idle, and poor fuel economy are often fuel system issues. We diagnose and repair injectors, high-pressure fuel pumps, and related components.
- Turbocharger Repair and Replacement - We diagnose turbo failures on semi trucks and diesel pickups, and replace or rebuild turbos across all major platforms.
- Air Brake System Repair - We diagnose and repair air brake systems on semi trucks and commercial vehicles, including compressors, chambers, valves, and lines - critical for passing DOT inspection.
- Engine Overhaul and Rebuild - For engines that have reached the end of their service life or suffered major damage, we offer complete overhaul and rebuild services.
Not sure which repair applies to your issue? Give us a call and we'll diagnose it and walk you through what's needed before any work begins.
Truck Makes We Service
Our heavy-duty shop works on all major commercial truck makes, including:
- Kenworth
- Peterbilt
- Freightliner
- Mack
- International
- Volvo
- Western Star
- Hino
- Ford
- Chevrolet
- GMC
For a full list of makes and models, see our manufacturers page.
DOT Inspections
Patriot Diesel is a certified DOT inspection facility. If your commercial vehicle is due for its annual inspection, we can complete it at our Fox Farm Road heavy-duty shop - including the air brake system checks required to pass. Learn more about our DOT inspection services.
Serving Trucks on I-80 and I-25
Our Fox Farm Road location is a short drive from both I-80 and I-25, making us a practical option for drivers and fleet operators passing through Cheyenne. If your truck needs repair before or after a run, or you've had a breakdown in the area, call us at (307) 635-2354.
FAQs
Do you work on Cummins, Power Stroke, and Duramax engines? Yes. We service all three major diesel pickup platforms - Cummins (Ram), Power Stroke (Ford), and Duramax (Chevy/GMC) - along with Cummins, Detroit Diesel, and Navistar engines in semi trucks. See our light-duty diesel repair page for pickup-specific details.
Do you service Detroit Diesel engines? Yes. We diagnose and repair Detroit Diesel engines (DD13, DD15, DD16) commonly found in Freightliner trucks, alongside Cummins, International, and other major platforms.
Do you offer DOT inspections? Yes, Patriot Diesel is a certified DOT inspection facility for commercial vehicles, including required air brake system checks. Visit our DOT inspection page for more information.
Do you service air brake systems? Yes. We diagnose and repair air brake systems on semi trucks and commercial vehicles, including compressors, chambers, and valves.
Do you service EGR and DPF systems? Yes. We diagnose, clean, and repair EGR and DPF systems - we do not remove or delete emissions systems. Details are on our EGR & DPF page.
Do you offer mobile or roadside service? Yes. We operate mobile repair units and dispatch for roadside breakdowns in the Cheyenne area. See our mobile truck repair and roadside assistance pages for coverage details.
Can you work on my truck if I'm passing through on I-80 or I-25? Yes. Our Fox Farm Road shop is close to both interstates, and we regularly service trucks for drivers and fleets passing through Cheyenne.
Our Cheyenne Locations
Patriot Diesel has three dedicated locations in Cheyenne, including:
- Heavy-Duty Shop – 2503 E. Fox Farm Rd., Cheyenne, WY 82007
- Light-Duty Diesel Shop – 2507 E. Fox Farm Rd., Cheyenne, WY 82007
- Automotive Shop – 1811 Hinckley Dr., Cheyenne, WY 82007
Don't let a diesel problem sideline your truck - call Patriot Diesel at (307) 635-2354 or request service online today.

