JW Diesel & Automotive Driven to Be the Best in Diesel & Fleet Repair Across Carbondale, CO and the Western Slope
WELCOME TO JW DIESEL & AUTOMOTIVE
At JW Diesel & Automotive, we treat every truck like it’s our own. Everything we do, from performance issues to full diesel repairs, reflects our commitment to quality. We’re not just here to fix trucks—we’re driven to be the best.
PROFESSIONAL
HONEST
QUALITY
Fleet and Diesel Truck Repair in Carbondale
Diesel is what we do best. Our team is factory-trained with real-world experience working on the trucks you drive—Cummins, Duramax, and Powerstroke. We understand downtime costs you money, so we prioritize uptime with fast, accurate repairs using OEM parts and dealer-level diagnostics. Whether you’re hauling equipment, materials, or livestock, we’ll keep your fleet running strong and your business moving.
Fleet Maintenance
Tailored service plans to minimize downtime and keep your trucks working.
Light-Duty Diesel Truck Repair
We provide expert service and repair for ½-ton, ¾-ton, and 1-ton trucks, all the way up to 2-ton workhorses. From poor fuel economy to loss of power or unusual smoke, we handle it all with diesel-specific tools and training that most general shops don’t offer.
Diesel Engine Repair
From turbo issues to injector failures, we provide accurate diagnostics and expert repairs on these trusted platforms:
Backed by diesel-specific certifications and dealer-level scan tools, our team delivers results built on deep experience and factory-level training.
Fluid & Maintenance Services
Transmission, brake, coolant, driveline, and fuel system cleaning using BG’s professional-grade equipment and chemical systems.
Synthetic, blend, and conventional options tailored to your diesel truck’s mileage, use, and manufacturer specs.
Inspections
We offer DOT, pre-purchase, and pre-trip inspections to ensure your vehicle is safe, compliant, and road-ready.
Performance & Diesel Upgrades
Want more torque, throttle response, or fuel efficiency? We offer performance upgrades that are tailored—not generic—and backed by hands-on installation.
Certified. Trusted. Proven.
Our technicians are ASE and Ford certified, EPA 609 qualified for A/C systems, and BG Services certified. We’ve trained with diesel industry leaders like Tony Salas and Mike Cleary, and continue to invest in education, equipment, and systems that support real-world results. Whether you run a single pickup or a full fleet, we bring the same level of care and expertise to every vehicle.
Clear Communication
Honest diagnostics and Digital Vehicle Inspections.
Preventive Focus
We help you avoid costly downtime.
Fleet Specialists
Fast turnarounds and consistent care.
Locally Rooted
Supporting hockey, rodeo, schools, and more.
Towing Partner
We work with Shaun's Towing for prompt, professional transport.
Vehicles We Service
While diesel trucks are our specialty, we also work on domestic brands:
Backed by Warranty
We stand behind our work with a 12-month / 12,000-mile warranty on parts and labor.
JW Diesel & Automotive
Diesel strong. Fleet ready. Driven to be the best.
Schedule Today
Call (970) 510-5157, text (970) 510-6344, or stop by 794 Industry Pl, Carbondale, CO, 81623. Serving Carbondale, New Castle, Glenwood Springs, Grand Junction, Eagle, Aspen, and beyond.
