Heavy-Duty Diesel Mechanic: Diagnostics & Repairs

20 Saia Motor Freight Line LLC; Philadelphia (Philadelphia County); On-site; USD 46,000 - 53,000; Full time

Job summary

Saia is seeking a skilled diesel mechanic to perform maintenance, diagnostics, and repairs on heavy-duty class 6–8 tractors. You will diagnose failures, service engines, transmissions, brakes, and electrical systems, and document all work performed.

The role requires reading and writing in English, a high school diploma or GED, and at least 2 years of diesel experience. You will work with others, train with partners, and test vehicles after service to ensure safe operation.

Qualifications

• Must have a high school diploma or GED.
• Minimum 2 years diesel mechanic experience.
• Authorized to work in the United States.
• Read, write, and comprehend English to perform tasks and document work.

Responsibilities

• Repairs and maintains systems and parts on class 6, 7, and 8 powered tractors.
• Diagnoses failures and repairs mechanical, electrical, and system components.
• Uses hydraulic jacks to access areas under vehicles.
• Assists in engine, transmission, differential, and spring replacements.
• Diagnoses/troubleshoots heavy-duty truck engines, brakes, electrical, and exhaust systems.
• Documents repairs, inspections and maintenance tasks.
• Collaborates with partners for training on complex repairs.
• Tests vehicles after repairs to ensure proper operation.

Skills

Diesel mechanic experience

Diagnostic software

Education

High school diploma or GED

Job description

Saia is seeking a skilled diesel mechanic to perform maintenance, diagnostics, and repairs on heavy-duty class 6–8 tractors. You will diagnose failures, service engines, transmissions, brakes, and electrical systems, and document all work performed.

The role requires reading and writing in English, a high school diploma or GED, and at least 2 years of diesel experience. You will work with others, train with partners, and test vehicles after service to ensure safe operation.