Diesel Service Foreman – Heavy Truck Dealership

Join Coffman Truck Sales, a family-owned dealership that values quality workmanship, teamwork, and long-term career growth. We are seeking an experienced Heavy Duty Diesel Shop Foreman to oversee daily shop operations while providing technical leadership and support to our skilled service team.

This role is ideal for a hands-on leader who enjoys diagnosing complex repairs, mentoring technicians, improving workflow, and ensuring customers receive the highest level of service. The Shop Foreman will play a key role in coordinating technician assignments, supporting diagnostics, managing warranty processes, and helping drive an efficient, safe, and positive shop environment.

If you are a skilled lead diesel technician looking to take the next step in your career while staying connected to the technical side of the business, this is an excellent opportunity to grow with a respected dealership team.

• Lead daily shop operations to ensure repairs and maintenance are completed safely, efficiently, and accurately.
• Assign and dispatch repair work based on technician skill level, workload, priorities, and customer needs.
• Provide hands-on technical support and troubleshooting assistance for complex repairs.
• Review repair orders, technician notes, and documentation for accuracy and completeness.
• Perform quality control inspections and verify repairs meet manufacturer specifications before equipment release.
• Support technicians with advanced diagnostics involving diesel engines, electrical systems, hydraulics, transmissions, HVAC, air systems, brakes, and suspension.
• Manage and assist with warranty processes, CORS claims, and OEM-related service requirements.
• Utilize service management systems, diagnostic software, and tools such as ASIST to improve workflow and repair accuracy.
• Monitor shop productivity, communicate repair status, and help remove workflow obstacles.
• Assist with parts coordination and ensure proper documentation of repairs and service history.
• Mentor, coach, and develop technicians through knowledge sharing and hands-on training.
• Promote a safety-first culture while maintaining a positive and professional work environment.

• 7-10 years of experience in a heavy-duty diesel, truck, fleet, or dealership repair environment preferred.
• Previous Shop Foreman, Lead Technician, or technician leadership experience strongly preferred.
• Strong heavy-duty diesel diagnostic and repair experience required.
• Experience assigning work, dispatching technicians, or managing daily shop workflow preferred.
• Knowledge of warranty processes, CORS, and OEM service programs preferred.
• Experience using diagnostic software and service management systems preferred.
• Familiarity with ASIST or similar OEM platforms highly preferred.
• Strong understanding of diesel engines, electrical diagnostics, hydraulics, transmissions, HVAC, air brake systems, and suspension components.
• Ability to read and interpret service manuals, schematics, and technical documentation.
• Detail-oriented with strong organizational, communication, and problem-solving skills.
• Welding, fabrication, and general equipment repair experience a plus.
• Ability to lead by example while working in a fast-paced service environment.

• Family-owned company with a team-focused culture.
• Competitive hourly pay based on experience and skill level.
• OEM training and ongoing technical development opportunities.
• Opportunities to earn additional certifications and expand your expertise.
• Company-provided uniforms.
• Rotational Saturday schedule with hours only until noon.
• Stable dealership environment with opportunities for long-term career growth.
• Work alongside a team that takes pride in quality repairs and customer service.

Take the next step in your diesel career and join a team where your experience, leadership, and technical skills are valued.