Diesel Technology


Teacher: Mr. Lee

The Diesel Technology course includes classroom and laboratory/ hands-on experiences concerned with all phases of repair work on diesel engines used to power buses, trucks, construction machinery, and similar equipment. Instruction and practice are provided in the diagnostics and repair of engines, brakes, electrical/electronic systems, suspension and steering. Students demonstrate performance of these takes as defined by ASE/ NATEF standards. Use of technical manuals, hand and power tools, and diagnostic/ testing equipment is also studied.


Working on front-end loader

Student(s): Ashley Bermudez, Hector Cabrera, and Santos Rodriguez


Competencies Students Obtain

The Diesel Technology career path enable students to leave high school with knowledge and specific expectations of their future. The field is predicted to have average job growth over the next decade. Job opportunities and salaries are better for workers who have completed post-secondary training programs in diesel engine repairs. Students obtain the knowledge of:

  • General Engine Diagnostics
  • Cylinder Head and Valve Diagnosis
  • Engine Block Diagnosis and Repair
  • Lubrication System Diagnosis
  • Cooling System Diagnosis
  • Exhaust System Diagnosis
  • Fuel System Diagnosis
  • Brakes, Clutch, Transmission Diagnosis

Career Outlook and Opportunities

As a diesel engine specialist, students can expect to earn approximately $19 per hour and/ or $40,000 per year. College opportunities in this field are certain to enable students to press forward in their studies to have average job. Leaving high school, graduating seniors earn their certification in this field along with a diploma. Even more-so, career opportunities open up to them as well:

  • ASE Certified
  • Marine Technician
  • Diesel Technician
  • Service Manager 


William J. Dean Technical High School
1045 Main Street
Holyoke, MA 01040