Heavy-Duty Diesel Mechanic: Diagnostics & Repairs

Saia; Houston (TX); On-site; USD 45,000 - 51,000; Full time

Job summary

Saia in Houston, Texas is seeking a skilled diesel mechanic to perform maintenance, repair, and diagnostic tasks on heavy trucks and equipment. You’ll work with a team to keep the fleet moving and safety standards high.

The role requires a high school diploma or GED, legal work status in the United States, and a willingness to provide personal tools. Strong English communication and experience with diesel systems are preferred.

Qualifications

• Must be 18 years of age and authorized to work in the United States.
• High school diploma or GED; must provide and maintain personal maintenance tools.
• Read, write, and comprehend English to perform tasks, review documents, and follow instructions.

Responsibilities

• Repairs and maintains class 6–8 powered tractors.
• Diagnoses failures and repairs mechanical, electric, and system components.
• Uses hydraulic jacks to access underneath vehicles.
• Assists in engine, transmission, differential, and spring replacements.
• Troubleshoots heavy‑duty engines, braking, electrical, and exhaust systems.
• Documents repairs, inspections, and maintenance tasks.
• Collaborates with business partners for training and assistance on complex repairs and tasks.
• Tests vehicles after repairs and maintenance to ensure proper operation.

Skills

Diesel mechanic experience

Education

High school diploma or GED

Tools

Diagnostic software

Job description

Saia in Houston, Texas is seeking a skilled diesel mechanic to perform maintenance, repair, and diagnostic tasks on heavy trucks and equipment. You’ll work with a team to keep the fleet moving and safety standards high.

The role requires a high school diploma or GED, legal work status in the United States, and a willingness to provide personal tools. Strong English communication and experience with diesel systems are preferred.