Medium & Heavy Duty Mechanic

Tri-County Truck Centers; Warren (MI); On-site; USD 45,000 - 65,000; Full time

Job summary

Tri-County Truck Centers in Warren, Michigan is looking for an experienced Diesel Technician to diagnose, repair, and maintain heavy-duty trucks and buses. Candidates should have at least one year of hands-on experience and possess Michigan State Certifications in Heavy Duty Trucks. Strong diagnostic skills and attention to detail are essential. This on-site position requires a Chauffeur's License, and familiarity with diesel systems is preferred. A positive work ethic and good character are expected attributes.

Qualifications

• At least one year of hands-on experience as a diesel technician.
• Knowledge of diesel engine repair and maintenance, powertrains, and electrical systems.
• Must possess your own tools.
• Chauffeur's License required (CDL a plus).

Responsibilities

• Diagnose mechanical, electrical, and powertrain issues.
• Perform hands-on repairs to diesel engines and related components.
• Conduct scheduled preventive maintenance on fleet vehicles.
• Accurately complete repair orders and documentation.
• Perform thorough pre- and post-repair inspections.
• Collaborate with fellow technicians and service advisors.

Skills

Diesel engine repair and maintenance

Strong diagnostic skills

Attention to detail

Verbal and written communication skills

Computer skills

Education

Michigan State Certifications in Heavy Duty Truck

Tools

Diagnostic tools and equipment

Job description

Overview

Diagnose — identify mechanical, electrical, and powertrain issues on light, medium, and heavy-duty trucks and buses using diagnostic tools and equipment.

Repair — perform hands-on repairs to diesel engines, powertrains, electrical systems, and related components following manufacturer specifications.

Maintain — conduct scheduled preventive maintenance to keep fleet vehicles operating safely and efficiently.

Document — accurately complete repair orders, warranty documentation, and labor operation records in accordance with manufacturer policies and procedures.

Inspect — perform thorough pre- and post-repair inspections to verify quality and safety of all work performed.

Collaborate — work alongside fellow technicians and service advisors to deliver timely, high-quality results for our customers.

Responsibilities

• Diagnose — identify mechanical, electrical, and powertrain issues on light, medium, and heavy-duty trucks and buses using diagnostic tools and equipment.
• Repair — perform hands-on repairs to diesel engines, powertrains, electrical systems, and related components following manufacturer specifications.
• Maintain — conduct scheduled preventive maintenance to keep fleet vehicles operating safely and efficiently.
• Document — accurately complete repair orders, warranty documentation, and labor operation records in accordance with manufacturer policies and procedures.
• Inspect — perform thorough pre- and post-repair inspections to verify quality and safety of all work performed.
• Collaborate — work alongside fellow technicians and service advisors to deliver timely, high-quality results for our customers.

Qualifications

• Required: At least one year of hands-on experience as a diesel technician — dealership or fleet experience preferred.
• Michigan State Certifications in Heavy Duty Truck (Trainee Permit accepted).
• Knowledge of diesel engine repair and maintenance, powertrains, and electrical systems.
• Strong diagnostic skills and attention to detail.
• Good verbal, written, and computer skills.
• Demonstrated good character and work ethic.
• Ability to follow manufacturers policies and procedures for labor operations, time, and repair order documentation when performing warranty repairs.
• Must possess your own tools.
• Chauffeur's License required (CDL a plus).
• Must be able to reliably commute to one of our Southeast Michigan locations — on-site position.

Preferred (Nice To Have)

• ASE, Navistar, or Cummins Certifications.
• Previous dealership or fleet maintenance experience.
• Familiarity with International Trucks diagnostic systems or platforms such as ServiceMaxx.