Diesel Maintenance Technician
Program Start Date: January 8, 2026
The Diesel Maintenance Technician program is designed to prepare students for employment as Truck, Bus, and Diesel Mechanics in the Heavy-Duty Truck and Bus Repair industry. The content includes, but is not limited to: system diagnostics, commercial motor vehicle preventative maintenance, air brakes systems, employability, and Occupational Safety and Health Administration (OSHA) procedures.
The Diesel Maintenance Technician Program is comprised of three courses:
Diesel Engine Mechanic/Technician Helper – Course DIM0101 (150 Hours) – Training includes basic skills and safety, diesel engine fundamentals, service and repair manuals, engine rebuild and overhaul, and employability skills and entrepreneurship.
Diesel Air Brakes Technician – Course DIM0131 (150 Hours) – This course covers the air supply and service systems, mechanical/foundation, parking brakes, hydraulic brake systems, wheel bearings, mechanical/foundation, air and hydraulic antilock brake systems (ABS), and automatic traction control (ATC).
Diesel Preventative Maintenance Technician – Course DIM0153 (300 Hours) – This content covers inspecting and servicing engine systems record findings; diagnosing and repairing fuel systems, air induction & exhaust systems, cooling systems, lubrication systems, instruments & control systems, safety equipment, hardware, HVAC, electrical/electronic battery & starting systems, electrical/electronic charging systems, electrical/electronic lighting systems, air brake systems, and hydraulic brake systems; inspect, service and record drive train systems; diagnose and repair suspension & steering systems, tires & wheels, and frame & fifth wheel.
Diesel Engine Mechanic/Technician Helper
Course #: DIM0101
OCP: A
Hours: 150
Diesel Air Brakes Technician
Course #: DIM0131
OCP: B
Hours: 150
Diesel Preventive Maintenance Technician
Course #: DIM0153
OCP: C
Hours: 300
TOTAL HOURS 600
Hours
600 hours. Approximately 5 months
Monday – Friday, 8am – 2:30pm
Cost
Approximately $5,933
Diesel Maintenance Technician Fee Sheet 2526
What You’ll Learn
- Proficiently explain and apply required shop and personal safety tasks.
- Identify the basic diesel components and functions.
- Explain and apply required tasks associated with the proper use and handling of tools and equipment.
- Identify principles, assemblies, and systems of engine operation.
- Demonstrate proficiency in preparing vehicle for routine pre/post maintenance and customer services.
- Demonstrate workplace employability skills related to personal standards and work habits/ethics.
- Diagnose and repair air supply and service systems.
- Diagnose and repair mechanical/foundation air brake systems.
- Diagnose and repair parking brakes.
- Diagnose and repair air and hydraulic antilock brake systems (ABS) and automatic traction control (ATC).
- Diagnose and repair wheel bearings.
- Diagnose and repair engine systems.
- Diagnose and repair fuel system
- Diagnose and repair air induction and exhaust system
- Diagnose and repair cooling system
- Diagnose and repair lubrication system
- Diagnose and repair instruments and controls
- Diagnose and repair safety equipment
- Diagnose and repair hardware
- Diagnose and repair heating, ventilation, and air conditioning (HVAC)
- Diagnose and repair battery and starting systems
- Diagnose and repair electrical/electronic charging systems
- Diagnose and repair lighting systems.
- Diagnose and repair electrical/electronic charging systems Diagnose and repair lighting systems.Diagnose and repair air brake systems.
- Diagnose and repair hydraulic brake systems.
- Diagnose and repair drive train systems.
- Diagnose and repair suspension and steering systems.
- Diagnose and repair tires and wheels.
- Diagnose and repair frame and fifth wheel.
Employment Opportunities
Students who complete this course can expect to earn a starting salary of $20+ per hour (Actual wages vary according to education, experience, and certifications.)
Industry Certifications
- ASE T4 Medium/Heavy Truck Brakes
- ASE T6 Medium/Heavy Truck Electrical/Electronic Systems
- ASE T8 Medium/Heavy Truck Preventive Maintenance Inspection
Software
- All Data
- Michelin Demand
- Indenta Fix
Career Ready Skills
- Act as a responsible and contributing citizen and employee.
- Apply appropriate academic and technical skills.
- Attend to personal health and financial well-being.
- Communicate clearly, effectively and with reason.
- Consider the environmental, social and economic impacts of decisions.
- Demonstrate creativity and innovation.
- Employ valid and reliable research strategies.
- Utilize critical thinking to make sense of problems and persevere in solving them.
- Model integrity, ethical leadership and effective management.
- Plan education and career path aligned to personal goals.
- Use technology to enhance productivity.
- Work productively in teams while using cultural/global competence.
Steps to Enroll
- Attend a Virtual Information Session
- Take the CASAS test, if applicable
- Obtain official transcripts, if applicable (high school, GED, college, etc.)
- Apply for financial aid (official transcripts required)
- Provide appropriate residency documents
- Complete application packet
- Pay application fee
Instructors
- Dylan Kjos
- DylanNK@LeeSchools.net
- Ext. 262
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