Diesel pickups and work trucks are built to work hard, and they need maintenance that matches the job. Under the Bus Auto services light-duty and diesel trucks on site in Canon City and throughout Fremont County, for both individual owners and business fleets. We come to your yard, ranch, job site or driveway, so the truck does not have to be taken out of service for a shop visit.
Diesel Maintenance Services
- Oil and filter changes with diesel-rated engine oil in the quantity your engine requires.
- Fuel filter and water separator service. Diesel engines are sensitive to contaminated fuel, and water in fuel is a common cause of rough running and injector damage.
- Air filter replacement, which matters more on dusty county and ranch roads.
- Coolant testing and service to protect against freezing, overheating and internal corrosion.
- Transmission, differential and transfer case fluid service on the manufacturer’s schedule or the severe-service schedule for towing.
- Brake inspection and repair for trucks that carry loads or pull trailers. See fleet brake service.
- Batteries and charging systems, including dual-battery setups common on diesel pickups.
- Belts, hoses and visible leak inspection.
- Diagnostics for check engine lights and drivability concerns.
Work Trucks Under Severe Service
Most work trucks operate under severe service conditions: towing, hauling, long idle periods on job sites, short trips between stops, dusty roads and temperature extremes. Each of those conditions shortens the safe interval for oil, filters and fluids. Running a work truck on a light-duty maintenance schedule is one of the most common reasons for premature engine, transmission and brake wear. We help set intervals that reflect how the truck is really used.
Diesel Trucks in Colorado Winters
Diesels are harder to start in cold weather and more sensitive to fuel quality. Before winter, we check block heaters and cords, glow plug or intake heater operation, battery capacity, fuel filters and water separators, and coolant protection. Winter-blend fuel and an appropriate anti-gel additive reduce the risk of fuel gelling on the coldest mornings. For the full checklist, see fleet winterization.
Ranch, Farm and Contractor Trucks
We work with ranchers in Penrose, Wetmore and the rural areas around Florence, with contractors and tradespeople in Canon City, and with small businesses that run a mix of gas and diesel pickups. Whether you have one truck or several, we can put each one on a maintenance schedule and service it at your location.
Trailers Too
Trucks that pull trailers need the trailer maintained as well. We repair axles, equalizers, air and electric brakes, wiring harnesses, 7-way plugs, lights, tires and decking on tractor trailers, flatbeds, roll-off and equipment trailers. See mobile trailer repair.
What We Refer Out
Some diesel work, such as internal engine overhauls or repairs that require a lift or specialized shop equipment, is best performed in a shop. If your truck needs that kind of work, we will tell you before any work begins and help you plan the next step.
Return to fleet maintenance services or see our other fleet services: preventive maintenance, fleet oil changes, fleet brake service, fleet winterization, diesel and work truck maintenance and trailer repair.
Schedule Diesel and Work Truck Service in Canon City
Call (719) 964-0522 or send us a message to book service. We work Monday through Saturday, 7:00 AM to 5:30 PM. Tell us the year, make and model, what the vehicle is doing, and where it is parked, and we will confirm what we can handle on site.