At Thomas’ Auto Repair in Wells, VT, we keep work trucks on the road and off the lift. Construction crews, landscapers, and small business owners across Granville, Poultney, Dorset, and Pawlet trust us to maintain their fleets and service their light-duty diesel trucks because downtime isn’t an inconvenience for them; it’s lost revenue.
Our team has hands-on experience with Ford Powerstroke and Duramax diesel engines, and we back every qualifying repair with a 2-year/24,000-mile warranty through Certified Auto Repair. When your work depends on your trucks, you need a shop that treats urgency the same way you do.
Light-Duty Diesel Trucks We Service
We specialize in light-duty diesel trucks built for commercial and heavy-use work.
Ford Powerstroke
- F-250 and F-350 — 6.0L Powerstroke
- F-250 and F-350 — 6.4L Powerstroke
- F-250 and F-350 — 6.7L Powerstroke
GM Duramax
- Silverado 2500HD and 3500HD
- Sierra 2500HD and 3500HD
Ram Cummins
- Ram 2500 and Ram 3500 (limited service — call to confirm)
Not on the list? Give us a call, and we’ll let you know quickly whether it’s something we handle.
Diesel Engine Problems That Kill Your Schedule
Vermont winters, heavy loads, and commercial use put diesel systems under pressure that most passenger vehicles never see. Here are the most common issues we diagnose on work trucks:
- EGR cooler failure: Leads to coolant loss, white exhaust smoke, and overheating under load. Catch it early or it takes the head gasket with it
- Injector wear and carbon buildup: Causes rough idling, power loss, and dropping fuel economy across all platforms
- DPF clogging: Stop-and-go commercial use prevents proper regeneration, restricting exhaust flow and killing performance
- Turbocharger failure: Oil starvation and compressor wear are the usual culprits on high-mileage work trucks
- Glow plug failure: The most common cause of hard cold starts when Vermont temperatures drop
- Suspension and drivetrain wear: Load stress and rough terrain wear out ball joints, tie rods, and leaf spring components faster than most owners expect
- Electrical faults: Aging sensors, controllers, and wiring harnesses are a frequent source of diagnostic headaches on high-mileage diesels
Fleet Maintenance and Diesel Services at Thomas’ Auto Repair
We handle the complete range of maintenance and repair services your fleet needs to stay operational. Everything is done in-house at our shop in Wells, with no need to drive 45 minutes to a dealer.
Fleet Maintenance Services
- Oil changes: Mainly synthetic, performed on manufacturer-recommended intervals to protect engines under commercial load
- Preventative maintenance: Scheduled fluid services using BG Products to extend drivetrain life and reduce surprise failures
- Tire services: Sales, repair, balancing, and rotation to keep your fleet tracking correctly
- Wheel alignments: Performed using our Hofmann alignment machine for precise results on trucks hauling heavy loads
- Brake repair: Full system inspections and repairs to keep your trucks stopping safely
- State and fleet inspections: Vermont state inspections, pre-trip, and pre-purchase inspections handled in-house
- Digital vehicle inspections: Documented with photos and video via Tekmetric so you see exactly what we find before any work starts
- A/C repair: Full service for R-134a and R-1234yf systems
- Transmission service and repair: From routine fluid service to full repairs
- Electrical diagnosis and repair: Resolving the sensor, wiring, and control module issues common on modern diesel trucks
Diesel Repair Services
- Fuel system cleaning: Using BG Products to restore injector spray patterns and flush carbon buildup before it causes failure
- Injector service and replacement: Addressing wear early to avoid the cost of a full set replacement
- EGR and cooling system service: Specialized work for Powerstroke engines with documented EGR cooler vulnerability
- DPF inspection and service: Keeping the particulate filter clear for clean, efficient operation
- Glow plug replacement: Restoring reliable cold starts ahead of Vermont winters
- Turbocharger diagnosis and repair: Identifying oil supply issues and mechanical wear before full failure
- Suspension and steering repair: Ball joints, tie rods, and leaf spring components worn down by load and terrain
Why Wells, VT Fleet Operators Trust Thomas’ Auto Repair
We’re a family-owned shop that’s been serving working Vermont since 1996, and we understand what it means to depend on a vehicle for your livelihood.
- 2-Year/24,000-Mile Warranty: All qualifying repairs are backed through Certified Auto Repair the same coverage you’d expect from a dealership, without the dealership markup.
- Priority Scheduling for Fleet Clients: We understand that a truck sitting in our bay is a truck not earning. We work to prioritize fleet vehicles and minimize your downtime.
- Digital Inspections via Tekmetric: Photos and videos document every finding. You see what we see before any work begins.
- BG Products Fluid Services: We use BG Products for diesel fuel system maintenance, engine oil services, and other preventative fluid treatments to extend the life of your drivetrain.
- Hofmann Alignment Machine: Proper alignment protects your tires and your suspension critical for trucks that carry heavy loads or cover rough terrain regularly.
- Loaner Cars and Shuttle Service: If your personal vehicle needs to stay with us, we’ll get you where you need to go.
- Honest Assessments: We tell you what your trucks actually need, not what runs up the bill. Our clients keep coming back because they trust us to look out for them, not the invoice.
Frequently Asked Questions About Fleet Maintenance and Diesel Repair
Do you offer priority scheduling for fleets?
Yes, we offer priority scheduling for fleet clients because we know that downtime costs you money. Contact us directly to discuss your fleet size and maintenance needs so we can build a service schedule that works around your operation.
Do you work on Ford Powerstroke and Duramax diesel trucks?
Yes, light-duty diesel service is one of our core specialties. We service both Powerstroke and Duramax-equipped trucks and have hands-on experience with the engine-specific issues common to each platform.
How often should a diesel work truck be serviced?
Most light-duty diesel trucks need an oil change every 5,000 to 7,500 miles under commercial use. A consistent maintenance schedule covering fluids, filters, and inspections is the most cost-effective way to avoid major repairs.
What are the signs a diesel truck needs injector service?
Common signs include rough idling, reduced power under load, black exhaust smoke, and dropping fuel economy. Catching these symptoms early with a fuel system service is far less costly than waiting until injectors fail.
Schedule Your Fleet Maintenance and Diesel Repair in Wells, VT!
Your trucks are your business. When they go down, you lose money, and we take that seriously. Thomas’ Auto Repair is located at 1092 VT Route 30, Wells, VT 05774, and our team is ready to get your fleet on a maintenance plan that keeps you running all season. Call us at (802) 645-9122 to schedule your fleet maintenance or diesel repair today.
