Thank you for your question. Although most diesel technicians learn on the job after a high school education, employers are increasingly preferring applicants who have completed post-secondary training programs in diesel engine repair. In addition, obtaining industry certification may be helpful because certification demonstrates a diesel technician’s competence and experience.
Most employers require a high school diploma or equivalent. High school or post-secondary courses in automotive repair, electronics, and mathematics provide a strong educational background for a career as a diesel technician.
Some employers prefer to hire workers with post-secondary education in diesel engine repair. Many community colleges and trade and vocational schools offer certificate or degree programs in diesel engine repair.
These degree programs mix classroom instruction with hands-on training and include learning the basics of diesel technology, repair techniques and equipment, and practical exercises. Students also learn how to interpret technical manuals and electronic diagnostic reports.
Diesel technicians who begin working without any post-secondary education are trained extensively on the job. Trainees are assigned basic tasks, such as cleaning parts, checking fuel and oil levels, and driving vehicles in and out of the shop.
After they learn routine maintenance and repair tasks and demonstrate competence, trainees move on to more complicated subjects, such as vehicle diagnostics. This process can take from 3 to 4 years, at which point a trainee is usually considered a journey-level diesel technician.
Over the course of their careers, diesel technicians must learn to use new techniques and equipment. Employers often send experienced technicians to special training classes conducted by manufacturers and vendors to learn about the latest diesel technology.
I wish you much success in your endeavor. Best of luck to you!
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- Source: US Bureau of Labor Statistics: - - -> https://www.bls.gov/ooh/installation-maintenance-and-repair/diesel-service-technicians-and-mechanics.htm#tab-4