Mobile Diesel Technician

True North Fleet Services; Niles (MI); On-site; USD 30,000 - 47,000; Full time

Benefits offered by this job

Mobile service vehicle

ASE testing support

401(k)

Health insurance

Dental insurance

Vision insurance

Paid time off

Training opportunities

Job summary

Miles Truck Services, in partnership with True North Fleet Services, is seeking an experienced Mobile Diesel Technician to support customers in the field. You will diagnose problems, perform repairs, and communicate with customers from a fully equipped mobile service vehicle.

You must be able to work independently, handle preventative maintenance on heavy-duty trucks and fleet equipment, and maintain safety and compliance while building strong customer relationships.

Qualifications

• 3+ years of diesel/heavy-duty truck maintenance experience.
• Valid driver’s license; CDL a plus.
• ASE T-Series certifications preferred or willingness to obtain.
• Strong diagnostic and troubleshooting across mechanical and electrical systems.
• Ability to work independently with limited supervision.
• Excellent communication and customer service skills.

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 experience and diagnostic tools.
• 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 repair solutions.

Skills

Diesel truck maintenance

Diagnostics

Customer communication

Independent work

Safety minded

Education

ASE T-Series certifications

Tools

Diagnostic tools

Job description

At Miles Truck Services, with our trusted partner True North Fleet Services, we are looking for an experienced Mobile Diesel Technician to support our customers and keep their fleets moving.

This is a hands‑on field position for a technician who is confident working independently, diagnosing problems, making quality repairs, and communicating directly with customers. You'll operate from a fully equipped mobile service vehicle and be trusted to assess equipment, determine the right course of action, and get the job done safely and efficiently.

If you're mechanically strong, dependable, and enjoy the autonomy of mobile work, this is an opportunity to make an immediate impact while continuing to grow your career.

Key Responsibilities

• Perform preventive maintenance and repairs on heavyduty trucks, trailers, and fleet equipment at customer locations
• Diagnoses and troubleshoot mechanical, electrical, and electronic issues using experience, 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 applicable safety and compliance standards are met
• Clearly communicate equipment conditions, repair recommendations, and job status with customers and internal teams
• Accurately 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 XXX and True North Fleet Services professionally at every customer location

Qualifications

• 3+ years of diesel, heavyduty truck, fleet, dealership, independent shop, or related mechanical experience preferred
• Mobile, roadside, or fieldservice experience strongly preferred
• Strong diagnostic and troubleshooting ability across mechanical and electrical systems
• Solid knowledge of diesel maintenance, repair procedures, and preventive maintenance programs
• Ability to work independently, make sound decisions, and complete repairs with limited supervision
• Strong communication and customerservice skills
• Selfmotivated, dependable, organized, and safetyminded
• ASE TSeries certifications preferred (T2, T4, T5, T6, T8) or willingness to obtain
• Valid driver's license and ability to meet company driving requirements
• CDL is a plus, but not required

What We Offer

• Competitive hourly pay based on experience, technical ability, and certifications
• Fully equipped mobile service vehicle
• Paid ASE testing and certification support
• Wage progression tied to ASE certifications and technical development
• Consistent workload and exposure to a variety of equipment and repair challenges
• Access to modern diagnostic tools and technical resources
• Training and continued development opportunities
• Stable schedule and longterm career growth
• Opportunity to advance into Lead Technician, Supervisor, and operational leadership roles

Why This Role Works

This is more than a traditional technician position. You'll have the opportunity to:

• Own your work - diagnose the problem, develop the solution, and see the repair through
• Work independently while having the support and resources of a larger team
• Build customer relationships and become a trusted resource for the fleets you support
• Develop advanced diagnostic and technical skills
• Working across a variety of trucks, trailers, and fleet equipment
• Build a career with a growing organization that values technical expertise, accountability, and development

For technicians who enjoy solving problems and don't want to spend every day inside the same shop, mobile service provides autonomy, variety, and responsibility to take your career further.

Benefits

• 401(k)
• 401(k) matching
• Dental insurance
• Flexible spending accounts
• Health insurance
• Health savings account
• Life insurance
• Paid time off
• Referral program
• Vision insurance

Work Location: Mobile / Field-Based / On-site

Equal Opportunity Employer

True North Fleet Services is an equal opportunity employer and is committed to creating an inclusive environment for all employees.