Diesel Mechanic at This N That Repair

Key Responsibilities:

Electrical & Electronic Diagnostics

• Diagnose, troubleshoot, and repair complex electrical issues, including multiplex wiring, CAN bus communication networks, and sensor failures.
• Utilize advanced diagnostic software (e.g., Cummins Insite, Detroit Diesel DDDL, Volvo/Mack Premium Tech Tool, JPro) to read fault codes and analyze live data stream parameters.
• Interpret electrical schematics, wiring diagrams, and circuit flow charts to pinpoint short circuits, open circuits, and high-resistance faults.
• Test and repair starter systems, alternators, batteries, and intricate lighting systems.

️ Mechanical Diagnostics & Repair

• Perform comprehensive mechanical diagnostics on heavy-duty diesel engines, transmissions, air brake systems, and steering/suspension components.
• Troubleshoot and repair complex exhaust aftertreatment systems, including Diesel Particulate Filters (DPF), Selective Catalytic Reduction (SCR), and DEF dosing systems.
• Conduct internal engine component inspections and perform repairs on fuel injection systems, turbochargers, and cooling systems.
• Perform routine preventative maintenance (PM) inspections and safety checks.

Documentation & Safety

• Accurately document all diagnostic steps, labor hours, and parts used within the shop management system.
• Maintain a clean, organized, and safe work environment, strictly adhering to OSHA and DOT regulations.

Qualifications & Skills:

Experience & Education

• Experience: 3 to 5 years of proven experience as a heavy-duty diesel mechanic, specifically working on semi-trucks (Class 7-8).
• Education: High school diploma or equivalent; a degree or certificate from a diesel technology technical school is highly preferred.

Technical Skills

• Diagnostic Prowess: Strong proficiency in using digital multimeters (DMM), oscilloscopes, and laptop-based OEM diagnostic software.
• Mechanical Knowledge: Deep understanding of diesel engine mechanics, pneumatic systems (air brakes), and hydraulic systems.
• Schematic Literacy: Ability to read and accurately interpret complex blueprints, mechanical drawings, and electrical schematics.