Senior Diesel Technician: Lead Diagnostics & Mentoring

American RENOLIT Corporation; Pontiac (MI); On-site; USD 41,000 - 55,000; Full time

Benefits offered by this job

Medical Insurance

Dental & Vision Insurance

401(k) with company match

Uniforms provided

Safety gear reimbursement

Fitness membership reimbursement

Job summary

Wiers Fleet Partners in Pontiac, MI is seeking a Master Diesel Technician to lead and perform high-level diagnostics and repairs on heavy-duty trucks. This role emphasizes mentoring teammates and maintaining top-quality work standards.

You will diagnose complex electrical and mechanical issues, conduct DOT inspections, and perform preventive maintenance to keep fleets running reliably. Experience and leadership are valued in this senior technician position.

Qualifications

• 5+ years of diesel technician experience is required.
• Advanced diagnostic and problem-solving skills are required.
• Ability to perform physically demanding work and handle heavy components.
• Preferred ASE certifications or manufacturer-specific certifications are a plus.

Responsibilities

• Diagnose, evaluate, and repair major components on heavy-duty trucks and specialized equipment.
• Perform comprehensive DOT inspections and advanced preventive maintenance.
• Execute complex electronic repairs and in-depth engine diagnostics.
• Maintain the highest standards of quality and safety.
• Document detailed repair processes and communicate clearly with service advisors and leadership.
• Support and mentor other technicians, helping elevate the team’s overall performance.

Skills

5+ years diesel technician experience

Advanced diagnostic skills

DOT inspections experience

Mentoring / leadership

Heavy components handling

Education

High school diploma or equivalent

ASE certifications

CDL preferred

Job description

Wiers Fleet Partners in Pontiac, MI is seeking a Master Diesel Technician to lead and perform high-level diagnostics and repairs on heavy-duty trucks. This role emphasizes mentoring teammates and maintaining top-quality work standards.

You will diagnose complex electrical and mechanical issues, conduct DOT inspections, and perform preventive maintenance to keep fleets running reliably. Experience and leadership are valued in this senior technician position.