Diesel Truck Diagnostics Pro & Performance

ExcelliSearch, Inc.; Harbor Beach (MI); On-site; USD 48,000 - 62,000; Full time

Benefits offered by this job

Health Insurance

PTO

401k Match

Relocation lump sum

Job summary

ExcelliSearch, Inc. in Harbor Beach, MI is seeking an experienced Diesel Mechanic to join the Service Department.

You’ll diagnose and repair diesel trucks, perform major repairs, and implement performance modifications with a strong focus on Duramax systems. You will own jobs from inspection to testing and final release, using diagnostic data and service information to determine root causes and best repair strategies.

Qualifications

• 3+ years of experience diagnosing and repairing diesel trucks, vehicles, or heavy equipment.
• Strong diagnostic ability across mechanical and electronic systems.
• Experience with R&R for engines/transmissions.
• Certifications are preferred, but not required.

Responsibilities

• Diagnose complex mechanical, electrical, fuel, air, cooling, and drivability issues.
• Perform major repairs, preventive maintenance, component installations, and approved performance modifications.
• Develop repair strategies using diagnostic data, service information, technical specifications, and hands-on experience.
• Identify root causes instead of replacing parts based on symptoms.
• Own assigned jobs from initial inspection through testing, documentation, and final release.
• Evaluate additional findings, explain recommended work, and identify when customer authorization is required.
• Perform final quality-control checks and confirm that completed work meets DHD standards.
• Prevent repeat failures and comebacks through disciplined diagnosis, installation, and validation.
• Provide technical guidance to other technicians when needed.
• Help improve shop procedures, diagnostic methods, workflow, and quality standards.
• Maintain accurate records of findings, labor, test results, parts, approvals, and completion status.

Skills

3+ years of experience diagnosing and…

Strong diagnostic ability across mech.

Experience with R&R for engines/trans.

Certifications preferred

Job description

ExcelliSearch, Inc. in Harbor Beach, MI is seeking an experienced Diesel Mechanic to join the Service Department.

You’ll diagnose and repair diesel trucks, perform major repairs, and implement performance modifications with a strong focus on Duramax systems. You will own jobs from inspection to testing and final release, using diagnostic data and service information to determine root causes and best repair strategies.