Corey Massey
Spartanburg
Summary
Heavy-Duty Diesel Technician with dealership experience performing OEM-compliant diagnostics, maintenance, and repairs on medium- and heavy-duty trucks. Experienced in troubleshooting complex engine, electrical, drivetrain, and aftertreatment systems, completing warranty work, and collaborating with service teams to ensure quality and efficiency.
Overview
4
4
years of professional experience
6
6
Certifications
Work History
Heavy Duty Diesel Technician
Velocity Truck Center
Spartanburg
03.2022 - Current
- Heavy-duty diesel technician with dealership experience specializing in OEM-level diagnostics, maintenance, and repair of medium- and heavy-duty trucks. Demonstrated technical capability in troubleshooting engine management, electrical, drivetrain, and aftertreatment systems using manufacturer diagnostic software and service documentation. Experienced in performing component replacements, complex mechanical repairs, and warranty-compliant service work while maintaining high standards for safety, accuracy, and efficiency. Valued for precise diagnostics, thorough repair documentation, and effective collaboration with service advisors and parts teams to support dealership productivity and customer satisfaction.
Education
High School Diploma -
Greer High School
Greer, SC05-2022
Skills
- OEM chassis professional certifications
- Heavy-duty Detroit Diesel expert certified
- OEM-level troubleshooting and diagnostics
- Complex mechanical repairs
- Preventive maintenance
- HVAC systems repair and maintenance
- Bumper-to-bumper diagnostics and repairs
Certification
DETROIT Heavy Duty - Expert Certification
Timeline
Heavy Duty Diesel Technician
Velocity Truck Center
03.2022 - Current
High School Diploma -
Greer High School