Commercial Truck Services
Advanced Diagnostics Modern diesel trucks rely on complex electronic control systems, sensors, emissions equipment, and communication networks that require more than basic troubleshooting. At VTech Diesel & Automotive Services, our advanced diagnostic services utilize professional diagnostic software and OEM-level troubleshooting procedures to accurately identify the root cause of performance issues, fault codes, warning lights, drivability concerns, and intermittent failures. We diagnose engine, transmission, aftertreatment, electrical, hydraulic, and communication system problems across a wide range of commercial trucks and diesel-powered equipment. Whether you're dealing with a check engine light, derate condition, DPF or SCR faults, electrical issues, loss of power, starting problems, or recurring breakdowns, our technicians perform in-depth testing and analysis to pinpoint the issue quickly and accurately. Our goal is to eliminate unnecessary parts replacement, reduce downtime, and get your equipment back to work with confidence.
Advanced Diagnostics
The Basics: The PM or Preventative Maintanence
Preventive Maintenance (PM) Services
At V-Tech Diesel & Automotive Services, preventive maintenance is about more than just changing oil and filters—it's about keeping your truck compliant, reliable, and on the road. Our comprehensive PM service includes engine oil and filter replacement, fuel filter and water separator service, fluid level inspections, lubrication of chassis components, and a complete multi-point vehicle inspection. Every truck receives a thorough safety and compliance evaluation modeled after the same critical areas inspected during DOT roadside and annual inspections, including brakes, tires, steering and suspension components, wheel seals, lights, air systems, driveline components, and fluid leaks. We also inspect transmission and differential fluid condition, cooling systems, belts, hoses, batteries, and other vital components to identify potential problems before they become costly breakdowns. Our goal is to help fleet owners and owner-operators maximize uptime, reduce repair costs, and stay prepared for DOT inspections year-round.
Advanced Engine Repair
The Echo Project →
When major engine problems arise, VTech Automotive & Diesel Services has the experience and equipment to diagnose and repair them correctly. Our technicians perform advanced engine repairs including head gasket replacement, cylinder head service, timing component repairs, injector replacement, turbocharger repairs, oil leak diagnosis, cooling system failures, engine reseals, and complete engine replacements when necessary. We service both gasoline and diesel engines for light-, medium-, and heavy-duty vehicles, delivering reliable repairs that maximize performance, efficiency, and engine life while minimizing costly downtime.
Roadside Service
When your truck breaks down, VTech Automotive & Diesel Services brings professional diesel repair directly to your location. Our fully equipped mobile service handles roadside diagnostics, cooling system repairs, radiator replacement, coolant leaks, A/C compressor, condenser, evaporator, receiver/drier, and refrigerant line repairs, as well as damaged air lines, air system leaks, belts, hoses, batteries, fuel system issues, and many other mechanical failures. Whether you're on the highway, at a job site, or at your terminal, our goal is to get your commercial truck back on the road quickly, safely, and with minimal downtime.
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Commercial Diesel Truck Repair & Fleet Maintenance
At VTech Diesel, we provide comprehensive commercial diesel truck repair, fleet maintenance, mobile diesel service, heavy-duty diagnostics, roadside breakdown assistance, preventative maintenance, engine repair, transmission service, hydraulic repair, and DOT fleet support for businesses throughout Georgia and the Southeast. Our technicians service virtually every type of commercial vehicle on the road—from Class 2 through Class 8 trucks—helping owner-operators, fleet managers, contractors, municipalities, utility companies, logistics providers, construction companies, and government agencies keep their equipment operating at peak performance.
We proudly repair and maintain every major commercial truck manufacturer, including Freightliner, International (Navistar), Peterbilt, Kenworth, Volvo Trucks, Mack Trucks, Western Star, Ford Commercial, Chevrolet Medium Duty, GMC, RAM Commercial, Isuzu Commercial Trucks, Hino, Mitsubishi Fuso, UD Trucks (Nissan Diesel), Autocar, Crane Carrier, Capacity Yard Trucks, Kalmar Ottawa terminal tractors, Orange EV terminal trucks, Battle Motors, Thomas Built Buses, Blue Bird, IC Bus, Gillig, New Flyer, MCI, Prevost, and many more. Whether you operate box trucks, semi tractors, power units, day cabs, sleeper trucks, yard spotters, terminal tractors, dump trucks, rollback tow trucks, wreckers, service trucks, utility trucks, crane trucks, bucket trucks, vacuum trucks, garbage trucks, cement mixers, fuel trucks, water trucks, refrigerated trucks, flatbeds, stake beds, hook-lift trucks, roll-off trucks, car haulers, hotshot trucks, Ram 2500/3500, Ford F-250 through F-750, Chevrolet Silverado HD, GMC Sierra HD, International CV Series, Isuzu NPR/NRR, Hino L-Series, or Mitsubishi Fuso FE models, VTech Diesel has the equipment and expertise to keep your fleet moving.
Diesel Engine Diagnostics, Overhauls & Powertrain Repair
Our technicians specialize in diagnosing and repairing virtually every major commercial diesel engine platform, including Cummins, Caterpillar (CAT), Detroit Diesel, PACCAR MX, Navistar International, Power Stroke, Duramax, Isuzu Diesel, Hino Diesel, Mitsubishi Diesel, Volvo D11, D13, D16, Mack MP Series, Mercedes-Benz Diesel, Deutz, Perkins, John Deere Industrial, Kubota Diesel, Yanmar Diesel, Scania, MAN, MTU, FPT Industrial (IVECO), Allison-equipped powertrains, Eaton drivetrains, and ZF commercial systems. Whether your truck is equipped with a Cummins ISX, X15, ISB, ISC, ISL, L9, B6.7, X12, Caterpillar C7, C9, C10, C12, C13, C15, 3126, C18, Detroit DD5, DD8, DD13, DD15, DD16, Series 60, PACCAR MX-11, MX-13, International DT466, DT530, MaxxForce, A26, N9, N10, Ford 6.7 Power Stroke, GM Duramax, Isuzu 4HK1, or Hino J-Series, our team has the knowledge, tooling, and diagnostic software to identify problems quickly and repair them correctly.
We perform complete diesel engine diagnostics, in-frame overhauls, out-of-frame rebuilds, injector replacement, turbocharger repair, EGR repair, DPF cleaning and replacement, SCR and DEF system diagnostics, NOx sensor replacement, fuel system repair, high-pressure common rail diagnostics, HEUI diagnostics, cooling system repair, radiator replacement, charge air cooler service, water pumps, oil leaks, head gasket repair, timing components, exhaust repair, driveline repair, clutch replacement, transmission diagnostics, differential service, PTO systems, air brake repair, suspension repair, steering repair, electrical diagnostics, battery systems, alternators, starters, HVAC repair, and complete preventative maintenance programs.
Mobile Fleet Service, Hydraulics & Roadside Diesel Repair
Downtime costs money, which is why VTech Diesel brings professional diesel repair directly to your location. Our mobile diesel mechanics provide on-site diagnostics, emergency roadside service, fleet maintenance, hydraulic repairs, air system repairs, cooling system service, fuel delivery troubleshooting, battery replacement, charging system diagnostics, brake repairs, hose fabrication, trailer repairs, suspension repairs, wheel seal replacement, PM services, and emergency breakdown response wherever your equipment is located.
We also specialize in hydraulic systems used on commercial trucks and vocational equipment, including rollback tow trucks, wreckers, dump bodies, roll-off systems, hook lifts, cranes, knuckle booms, bucket trucks, utility bodies, PTO-driven hydraulic pumps, wet kits, lift gates, refuse equipment, vacuum trucks, concrete mixers, asphalt equipment, snow and ice equipment, and heavy vocational trucks. From hydraulic hose failures and leaking cylinders to PTO troubleshooting, hydraulic pump replacement, valve diagnostics, and complete hydraulic system restoration, our technicians are equipped to keep your equipment operating safely and efficiently.
Complete Fleet Support for Every Commercial Industry
VTech Diesel proudly supports transportation companies, freight carriers, towing companies, owner-operators, hotshot fleets, delivery companies, municipalities, utility providers, construction contractors, agricultural operations, waste management companies, concrete companies, moving companies, emergency services, school districts, bus fleets, rental fleets, and industrial businesses throughout Georgia. Whether you operate one truck or hundreds, we provide dependable service focused on maximizing uptime, reducing operating costs, and extending the life of your equipment.
From Japanese cab-over trucks to heavy-duty American highway tractors, from delivery vans and box trucks to long-haul semis, yard trucks, power units, vocational equipment, heavy wreckers, and specialized commercial fleets, VTech Diesel delivers expert diagnostics, quality workmanship, and fast mobile response when you need it most. If it has a diesel engine, we have the experience, equipment, and commitment to keep it working.