Diesel Mechanic

Everything an auto mechanic does, but bigger, heavier, and louder. You'll work on semi trucks, buses, construction equipment, and generators. The parts weigh more, the problems are more expensive, and the trucks keep the entire economy moving.

What you'll actually do

• 01Diagnose diesel engine problems by sound alone (and be right 90% of the time)
• 02Perform preventive maintenance on fleet vehicles
• 03Replace turbochargers, injectors, and exhaust systems
• 04Use hydraulic lifts and heavy-duty shop equipment
• 05Inspect vehicles for DOT compliance
• 06Work in all weather conditions for roadside breakdowns
• 07Handle parts that weigh more than you do

Career Path

Where this role sits in the bigger picture — and where it can take you.