Diesel Mechanic Training Program
Create Your New Future
Diesel Heavy Truck Technician Program Details
South Texas Vocational Technical Institute’s Diesel Heavy Truck Technician program helps prepare you to pursue a career in automotive maintenance. This program provides instruction on the skills to be a member of the team. Our Diesel Heavy Truck Technician program emphasizes hands-on learning and road safety. STVT is proud to offer Diesel Heavy Truck Technician Program in South Texas. This program is offered at our San Antonio Campus.
Diploma: 60 Credit Hours, 13 Months.
*STVT cannot guarantee job placement, salary or employment
*STVT does not guarantee third-party certifications. Certification requirements for taking and passing certification examinations are not controlled by STVT but by outside agencies and are subject to change by the agencies without notice to STVT. Therefore, STVT cannot guarantee that graduates will be eligible to take certification examinations, regardless of their eligibility status upon enrollment.
What’s Covered
Along with classroom education, students at STVT will get the opportunity to participate in hands-on training to strengthen their skills.
Learn how basic electrical theory can be applied to diagnosing and fixing electrical systems in heavy trucks like batteries, lighting, charging systems, and more.
Learn how to inspect, disassemble, reassemble, and return different diesel engines to factory settings, and more.
Practice diagnosing, servicing, and repairing diesel fuel systems and diesel emissions systems.
Learn how to inspect, diagnose, and repair heating, ventilation, and air conditioning systems in heavy trucks. Students can also learn to properly handle, recycle, and recover refrigerant while preparing to take the Environmental Protection Agency (EPA) 609 test.
Learn what tasks to complete when performing general maintenance on climate control systems, breaks, electronic systems, and more to extend the longevity of heavy trucks.
Learn to troubleshoot, repair, and replace different drivetrain components to keep heavy trucks running safely on the road.
Practice diagnosing and repairing the electrical systems that control critical safety features in heavy trucks like brakes, turn signals, hazard lights, and more.
Career Outlook
With a steady nationwide demand for diesel and automotive service technicians and mechanics through 2033, now is an exciting time to prepare for careers in the automotive industry. Texas stands out as a hub filled with opportunity for aspiring service technicians.
Graduates of our Diesel Heavy-Truck program be qualified for entry-level roles* as:
- Automotive service technicians
- Dialysis technicians
- Diesel mechanics
- Diesel technicians
*The jobs mentioned are examples of certain potential jobs, not a representation that these outcomes are more probable than others.
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Frequently Asked Questions
Hands-on training is an integral part of every program offered at STVT. We do this to help you see your skills in action, adapt to tasks you may complete in the field, and learn to use your skills in compliance with industry standards. It’s also a great chance to test your understanding, receive extra support, and familiarize yourself with tools and equipment you use after graduation.
This depends on how you choose to become a diesel technician. If you pursue a degree program, it can take up to four years. This timeline can be shortened if you complete a program at a trade school like STVT. With us, you can complete your diesel training and prepare for the EPA 609 certification exam* in 13 months.
*STVT does not guarantee third-party certification. Certification requirements for taking and passing certification examinations are not controlled by STVT but by outside agencies and are subject to change by the agencies without notice to STVT. Therefore, STVT cannot guarantee that graduates will be eligible to take certification examinations, regardless of their eligibility status upon enrollment.
No, you typically don’t need a CDL as a diesel technician, but having one could be very beneficial. From allowing you to legally test-drive trucks after repairs to opening up additional career pathways, choosing to earn a CDL alongside training to be a diesel technician can make you a more versatile applicant and worker.
To become a diesel technician in Texas, you will need to earn either a high school diploma or GED. After, you’ll need to complete a postsecondary program at a community college, trade school, or vocational school of your choice. During this time, you can learn the basics of diesel technology while preparing for common industry credentials like the EPA Section 609 and those offered at the National Institute for Automotive Service Excellence (ASE).
Financial aid is available for those who qualify, and STVT offers different scholarship options to help students cover the cost of their tuition.
Across the nation, the Bureau of Labor Statistics projects the demand for diesel service technicians and mechanics and automotive service technicians and mechanics to hold steady until 2033. With the highest employment level of automotive service technicians and mechanics in the U.S., Texas has plenty of exciting opportunities for aspiring service technicians.
Ready To Enroll?
Start at STVT to begin the skills-based career training you’ve been dreaming of. Our flexible scheduling and affordable options make it a great place for you to pursue your Diesel Heavy Truck Technician diploma. Talk to an admissions representative today.
What our Graduates are saying

I would like to say to the staff at STVT, thank you so much for all your help. I appreciate it so much. You have no idea what an inspiration and motivation y’all have made on my life and my daughter’s life as well.
Fantasia Benavides
STVT Corpus Christi, Dental Assisting Graduate

I was helped in so many ways. You know, I couldn’t be more grateful and blessed, you know, to have the staff here at STVT – the students that I was with and my instructors. It couldn’t have been any better.
Richard Victor Mendez, Jr.
STVT San Antonio, Combination Welding Graduate

I heard about STVT with commercials when I was just sitting down one night. I heard a commercial about it – saw that they offered the dental assisting program – saw that it was just a few months instead of, you know, years and that’s something that really did interest me.