
MACK E7
Diagnostics, internal engine repair, cylinder-head service, turbo and fuel systems.
Advanced diagnostics, diesel repair, programming and electrical troubleshooting for modern commercial trucks across Winder and Northeast Georgia.
TRACTOAUTO LLC • WINDER, GEORGIA
Heavy-duty truck diagnostics & diesel repair • (470) 830-1170


From vocational trucks to Class 8 tractors, TractoAuto diagnoses and repairs the equipment that keeps businesses moving.



From diagnostics to complete engine overhauls, TractoAuto works on the engines that keep heavy-duty trucks moving.

Diagnostics, internal engine repair, cylinder-head service, turbo and fuel systems.

Complete overhauls, internal inspection, cylinder-head and block work.

MX engine diagnostics, fuel pressure, turbo/air systems and mechanical repair.

Engine diagnostics, fuel systems, top-end repair, in-frame work and overhaul.
Complex truck problems rarely fit into one category. Our workflow connects electronic data, electrical testing and mechanical inspection before repair decisions are made.

Live data, datalink, sensors, wiring and root-cause verification.

Performance, fuel, cooling, lubrication and major mechanical concerns.

Calibration support and electronic system service for modern trucks.

Power, ground, harness, sensor and communication faults.

Derates, emissions faults and system-level troubleshooting.

Commercial-truck maintenance focused on reliability and uptime.

Fault codes are only the starting point. We use live data, datalink checks, sensor validation and guided testing to isolate the actual failure before expensive parts are replaced.
Real trucks, real technicians and the shop environment behind every repair decision.

Operations, customer communication and the day-to-day coordination behind the shop.

Diagnostic direction, technical workflow and hands-on heavy-duty troubleshooting.

ENGINE PERFORMANCE
Fuel, cooling, lubrication and engine-performance concerns are verified before repair decisions are made.

HEAVY-DUTY REPAIR
Truck repair, inspection and troubleshooting with the workflow and space required for heavy-duty platforms.

THE FACILITY
Organized bays, diagnostic equipment and room to handle commercial trucks without compromising the process.

ENGINE WORK
Mechanical repairs are approached with the same diagnostic discipline used for electronic and electrical faults.
Verify the complaint before touching the repair.
Use data and measurements to isolate the system.
Fix the actual failure—not the symptom.
Confirm operation before the truck leaves.




Professional workspace, diagnostic technology and a workflow designed around commercial trucks—not passenger vehicles.