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$15 million in grants & scholarships available this year for those who qualify10

Courses in UTI’s Diesel Technology program help students build their knowledge from the ground up.


Diesel Technician Training

In less than a year, you could train to become a diesel technician.7 Browse the courses you can take in UTI’s Diesel Technology program to help build your knowledge from the ground up.

UTI Diesel Mechanic Classes

  • Diesel Engines Service & Repair

    • Principles of operation
    • Engine component testing, removal and replacement using OEM service manuals
    • Electronic diagnostics using OEM software
    • Fuel and emission systems operation and diagnostic testing
    • Builds on content learned in the Auto/Diesel courses
    • Adds and focuses on diesel-specific topics
    • Familiarization with OEM service manuals and software
    • Diagnostic repair procedures
    • Troubleshooting process

  • Diesel Truck Manual Transmissions

    • Principles of operation of single countershaft and twin countershaft transmissions
    • Principles of operation of autoshift and ultrashift transmissions
    • Principles of operation of hydraulic and manual clutch system operation
    • Clutch, transmission, driveline diagnostics
    • Disassembly, inspection, and reassembly of single and twin countershaft transmissions, differentials and driveshafts
    • OEM diagnostic procedures for automated twin countershaft (autoshift and ultrashift) transmissions
    • Failure analysis
    • Familiarization with OEM service manuals and software
    • Operation and maintenance of transmissions

  • Diesel Truck Brake Systems & Chassis

    • Operation, repair, and maintenance of heavy-duty air and hydraulic brake systems
    • Use of OEM software
    • Use of OEM diagnostic tools and procedures
    • Anti-lock braking system (ABS) operation, repair and maintenance
    • Familiarization with the braking system
    • Knowledge and the experience of removal, diagnosis and installation of braking system components

  • Diesel Truck Steering & Suspension Systems

    • Operation, repair, and maintenance of steering linkage and power-steering systems
    • Operation, repair, and maintenance of wheels and tires
    • Alignments, both manual and electronic
    • Truck suspension systems
    • Exposure to different alignment methods
    • Exposure to steering and suspension systems’ maintenance and diagnostics

  • Automotive Climate Control Systems & Repair

    • Learn the HVAC electrical system and how to diagnose problems.
    • Learn how to remove and reinstall HVAC components and diagnose electrical- and HVAC-related faults.
    • Learn how to use basic hand tools, A/C specific tools and scan tools.
    • Learn to use a refrigerant machine for evacuating and recharging.

  • Diesel Hydraulic Systems

    • Basic hydraulic fundamentals, flow, pressure, components
    • Interpreting hydraulic schematics and symbols
    • Hydraulic diagnosis and maintenance

  • Vehicle Electronic Systems & Technology

    • Learn how to use various tools, including multimeters and oscilloscopes.
    • Use a diagnostic scanner that connects to the vehicle’s network to read and control specific components of an electrical system.
    • Learn how to understand and diagnose an electrical fault using the correct tools.

  • Diesel Truck Transport Refrigeration

    • Basics of industrial refrigeration
    • How to evacuate and recharge an HVAC system using scales
    • How trailer- and truck-mount refrigeration units operate
    • How truck auxiliary power units (APUs) operate
    • How to maintain, diagnose, and repair refrigeration units and APUs
    • How to repair leaks by brazing
    • Troubleshooting and maintaining refrigeration units

  • Diesel Truck Preventative Maintenance

    • DOT inspections
    • Maintenance procedures on the complete truck
    • Familiarization with DOT regulations and inspection
    • Understanding the importance of maintaining vehicles
    • Understanding of the use of maintenance equipment
    • Exposure to the Federal Motor Carrier Safety Administration standards and website