Truck Diesel Technician
Automotive Technology
Apply technical knowledge and skills to the specialized maintenance and repair of trucks, buses, and other commercial and industrial vehicles.
What Truck Diesel Technicians Do
Apply technical knowledge and skills to the specialized maintenance and repair of trucks, buses, and other commercial and industrial vehicles.
Common Tasks
Automotive Service Technicians and Mechanics
- 1Inspect vehicles for damage and record findings so that necessary repairs can be made.
- 2Test drive vehicles and test components and systems, using equipment such as infrared engine analyzers, compression gauges, and computerized diagnostic devices.
- 3Test and adjust repaired systems to meet manufacturers' performance specifications.
- 4Repair, reline, replace, and adjust brakes.
- 5Review work orders and discuss work with supervisors.
What You'll Learn
Types of Truck Diesel Technicians
Work Environment
Locations
- • Fleet maintenance shops
- • Truck dealerships and service centers
- • Independent diesel repair shops
- • Bus garages and transit agencies
- • Construction and industrial equipment yards
Schedule
Most diesel mechanics work a set schedule, but evenings, weekends, and on-call shifts are common to keep fleets running with high time pressure.
Physical Demands
The work is physically active with lots of standing, walking, bending, and handling heavy parts and tools. Expect frequent repetitive motions and working in awkward positions under or around large vehicles.
Salary & Job Outlook
National Employment: 1,125,500 jobs
Top Paying States
Why Demand May Grow
Freight shipping and delivery fleets continue to expand, keeping more trucks and buses on the road that need maintenance and repair. As vehicles add more electronics and emissions systems, shops need technicians who can diagnose and service complex components.
Skills You'll Need
Pros & Cons
Pros
- • Strong demand for skilled technicians in fleets and repair shops
- • Good median pay compared with many other trades
- • Hands-on work with clear, practical results
- • Opportunities to specialize (brakes, electrical, drivetrains, HVAC)
- • Skills transfer across trucking, buses, and industrial vehicles
Cons
- • Physically demanding work with risk of strains and injuries
- • High time pressure to get vehicles back in service
- • Dirty, noisy environments and exposure to chemicals
- • Ongoing need to learn new diagnostic and electronic systems
- • Some roles require shift work, nights, or weekends
Common Questions About the Truck Diesel Technician Trade
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