Service Technician

Thompson Truck Group Trailer Shop; Cookeville (TN); On-site; USD 48,000 - 64,000; Full time

Benefits offered by this job

Competitive compensation

Performance-based earnings

Benefits package

Paid training

Certifications & training

Career advancement

Modern equipment

Supportive team

Multiple locations

Job summary

Thompson Truck Group in Cookeville, TN is seeking a skilled Service Technician to diagnose and repair commercial vehicles, delivering quality repairs and excellent customer service. You will work with diagnostics across multiple vehicle systems, maintain safety standards, and contribute to a collaborative service team.

Join TTG for on‑the‑job training, advancement opportunities, and a culture of safety and professionalism as you grow your career in a leading trucking dealership network.

Qualifications

• Previous diesel, heavy‑duty truck, automotive, or commercial vehicle repair experience preferred.
• Strong diagnostic and troubleshooting skills.
• Ability to read and interpret repair manuals, wiring diagrams, and diagnostic information.
• Basic computer skills and experience with electronic diagnostic tools.
• Valid driver's license required.
• CDL or ability to obtain a CDL preferred.
• Ability to lift, push, pull, and move heavy components and equipment.
• Strong attention to detail and commitment to quality workmanship.
• Positive attitude and ability to work effectively in a team environment.

Responsibilities

• Perform repairs and maintenance according to dealership and manufacturer specifications.
• Diagnose and troubleshoot electrical, drivetrain, HVAC, braking, engine, suspension, and other vehicle systems.
• Identify required repairs and perform corrective actions efficiently and accurately.
• Document all diagnostics, repairs, and recommendations clearly on repair orders.
• Utilize diagnostic equipment and software to isolate faults and interpret test results.
• Review repair orders and determine the most efficient repair procedures.
• Communicate additional repair needs, delays, or changes to the Service Advisor promptly.
• Provide detailed repair information to the Shop Foreman for accurate repair order documentation.
• Obtain supervisor approval for additional repairs when required.
• Conduct road tests to verify repairs and assist with diagnostics.
• Track labor hours accurately to the appropriate repair order.
• Interact professionally with customers and coworkers.
• Assist fellow technicians with repair procedures and technical support.
• Participate in OEM training programs, technical schools, and certification opportunities.
• Stay current with technical service bulletins and manufacturer updates.
• Maintain a clean, organized, and safe work area.
• Properly care for and maintain dealership-owned tools and equipment.
• Follow all company safety policies and report hazards or safety concerns immediately.

Skills

Diesel repair

Heavy‑duty repair

Diagnostic skills

Reading diagrams

Repair manuals

Computer skills

Electronic diagnostics

Driver's license

CDL preferred

Heavy lifting

Attention to detail

Teamwork

Quality workmanship

Job description

Service Technician

Thompson Truck Group (TTG)

Join a Team That Keeps America Moving

Thompson Truck Group is seeking a skilled Service Technician to join our growing service team in Cookeville, TN. If you are a motivated diesel technician who takes pride in delivering quality repairs, diagnosing complex issues, and providing exceptional customer service, we want to hear from you.

At TTG, we are committed to safety, professionalism, teamwork, and continuous improvement. Our employees are our greatest asset, and we invest in training, development, and advancement opportunities. TTG's core values emphasize integrity, collaboration, accountability, operational excellence, and an obsession with safety.

Position Summary

The Service Technician functions as a skilled-level technician who can perform diagnostics and repairs across multiple vehicle systems while developing expertise in specialized areas of repair. This position is responsible for accurately diagnosing and repairing commercial vehicles while maintaining productivity, quality, and safety standards.

Essential Responsibilities

• Perform repairs and maintenance according to dealership and manufacturer specifications.
• Diagnose and troubleshoot electrical, drivetrain, HVAC, braking, engine, suspension, and other vehicle systems.
• Identify required repairs and perform corrective actions efficiently and accurately.
• Document all diagnostics, repairs, and recommendations clearly on repair orders.
• Utilize diagnostic equipment and software to isolate faults and interpret test results.
• Review repair orders and determine the most efficient repair procedures.
• Communicate additional repair needs, delays, or changes to the Service Advisor promptly.
• Provide detailed repair information to the Shop Foreman for accurate repair order documentation.
• Obtain supervisor approval for additional repairs when required.
• Conduct road tests to verify repairs and assist with diagnostics.
• Track labor hours accurately to the appropriate repair order.
• Interact professionally with customers and coworkers.
• Assist fellow technicians with repair procedures and technical support.
• Participate in OEM training programs, technical schools, and certification opportunities.
• Stay current with technical service bulletins and manufacturer updates.
• Maintain a clean, organized, and safe work area.
• Properly care for and maintain dealership-owned tools and equipment.
• Follow all company safety policies and report hazards or safety concerns immediately.

Qualifications

• Previous diesel, heavy‑duty truck, automotive, or commercial vehicle repair experience preferred.
• Strong diagnostic and troubleshooting skills.
• Ability to read and interpret repair manuals, wiring diagrams, and diagnostic information.
• Basic computer skills and experience with electronic diagnostic tools.
• Valid driver's license required.
• CDL or ability to obtain a CDL preferred.
• Ability to lift, push, pull, and move heavy components and equipment.
• Strong attention to detail and commitment to quality workmanship.
• Positive attitude and ability to work effectively in a team environment.

Why Join Thompson Truck Group?

• Competitive compensation
• Performance-based earning opportunities
• Comprehensive benefits package
• Paid training and manufacturer certifications
• Career advancement opportunities
• Modern equipment and diagnostic tools
• Supportive team environment
• Stable, growing company with multiple locations

About Thompson Truck Group

Thompson Truck Group is a leading commercial truck dealership serving customers throughout Tennessee and Virginia. We are driven by our commitment to customer satisfaction, operational excellence, safety, and teamwork. Our culture is built on respect, integrity, continuous improvement, and serving others. One Team. One Drive. One Result.