About This Role
Working on heavy-duty diesel trucks, the Diesel Mechanic diagnoses, repairs, and maintains complex mechanical, hydraulic, electrical, and electronic systems. This role suits a skilled tradesperson with a strong background in diesel engine repair and a commitment to high-quality service and customer satisfaction.
Responsibilities
- Diagnose and repair complex mechanical, hydraulic, electrical, and electronic systems on heavy-duty diesel trucks using advanced diagnostic tools, schematics, and technical manuals (e.g., Cummins Insite, Detroit Diesel Diagnostic Link)
- Perform routine preventive maintenance, including oil changes, filter replacements, tire inspections, brake adjustments, and chassis lubrication to ensure truck reliability and compliance with federal and state regulations
- Replace or repair critical components such as diesel engines, transmissions, differentials, turbochargers, or brake systems
- Perform minor welding, cutting, or fabrication tasks to repair or modify truck frames, bodies, or components as needed
- Complete detailed service reports, document parts used, and record maintenance activities for warranty, billing, DOT compliance, and inventory purposes
- Communicate with fleet managers or drivers to explain repairs, provide maintenance recommendations, and ensure satisfaction with service
- Adhere to OSHA, DOT, and company safety regulations, maintain a clean work environment, and follow manufacturer protocols
- Maintain and organize tools, service vehicles, and diagnostic equipment to ensure operational readiness for field service
Requirements
- High school diploma or equivalent
- 2–5 years of experience repairing and maintaining heavy-duty diesel trucks (e.g., Kenworth, Peterbilt, Freightliner, Volvo, or Mack)
- In-depth knowledge of diesel engines, hydraulic systems, electrical systems, and electronic controls (e.g., ECM diagnostics)
- Proficiency with diagnostic tools (e.g., Cummins Insite, Detroit Diesel Diagnostic Link, or OEM software) and hand/power tools
- Ability to read and interpret technical manuals, wiring diagrams, and hydraulic schematics
- Strong problem-solving skills and attention to detail
- Excellent communication and customer service skills for interacting with fleet managers and drivers
- Ability to lift heavy parts (up to 50–75 lbs.), work in confined spaces (e.g., under truck chassis), and perform tasks in various weather conditions
- Valid driver’s license
Nice to have:
- Technical diploma or certification in diesel mechanics or heavy-duty truck repair
- Basic welding and fabrication skills
- Manufacturer-specific training (e.g., Cummins, Detroit Diesel, Paccar) or ASE Heavy Duty Truck certifications (e.g., T2–T8 series)
