Mobile Diesel Technician: Field Diagnostics & Repairs

True North Fleet Services; Baton Rouge (LA); On-site; USD 33,000 - 44,000; Full time

Benefits offered by this job

401(k)

401(k) matching

Dental insurance

Flexible spending accounts

Health insurance

Health savings account

Life insurance

Paid time off

Referral program

Vision insurance

Job summary

Total Tire Solutions, partnering with True North Fleet Services, seeks an experienced Mobile Diesel Technician to service fleets at customer sites with a fully equipped mobile unit. You will diagnose problems, perform repairs, and communicate clearly with customers, ensuring safe, efficient solutions.

The role requires 3+ years in diesel and heavy-duty work, strong diagnostics, and the ability to work independently in a mobile setting.

Qualifications

• 3+ years of diesel/heavy-duty experience preferred.
• Mobile/field service experience preferred.
• Strong diagnostic and troubleshooting ability across mechanical and electrical systems.
• Knowledge of diesel maintenance and preventive maintenance programs.
• Ability to work independently with limited supervision.
• Excellent communication and customer service skills.
• Self-motivated, dependable, organized, and safety-minded.
• Valid driver’s license and ability to meet company driving requirements.

Responsibilities

• Perform preventive maintenance and repairs on heavyduty trucks, trailers, and fleet equipment at customer locations.
• Diagnose and troubleshoot mechanical, electrical, and electronic issues using diagnostic tools and service information.
• Repair diesel engines, brakes, suspension, steering, electrical systems, and related components.
• Respond to mobile service and roadside repair needs.
• Independently assess equipment issues and determine appropriate repair solutions.
• Perform DOT inspections and ensure safety/compliance standards are met.
• Communicate conditions, recommendations, and status with customers and internal teams.
• Document inspections, diagnostics, repairs, parts, and maintenance activities.
• Manage daily workload, service calls, tools, and mobile inventory effectively.
• Maintain a clean, safe, and organized mobile service vehicle and work environment.
• Represent Total Tire Solutions and True North Fleet Services professionally at customer locations.

Skills

Diesel repair

Heavy-duty trucks

Diagnostics

Electrical systems

Customer communication

CDL (plus)

ASE certification

Independent work

Education

ASE T-Series certifications

Tools

Diagnostic tools

Field service equipment

Job description

Total Tire Solutions, partnering with True North Fleet Services, seeks an experienced Mobile Diesel Technician to service fleets at customer sites with a fully equipped mobile unit. You will diagnose problems, perform repairs, and communicate clearly with customers, ensuring safe, efficient solutions.

The role requires 3+ years in diesel and heavy-duty work, strong diagnostics, and the ability to work independently in a mobile setting.