: Our Medium / Heavy Diesel Automotive Technician three-part course series covers industry trends and current technology to provide an in-depth guide to highway diesel engines and their management. This series prepares entry-level and experienced technicians alike for a successful career as a Medium/Heavy Diesel Automotive Technician by outlining the role of the truck technician, industry tools and standards for safety, and steps for diagnosing and servicing a full range of diesel engines. Learn the necessary knowledge to gain employment in the automotive industry with up-to-date content including the principles and practices underlying current and proposed ASE and NATEF tasks and the most current diesel engine management electronics used in the industry. This series provides everything a student needs to know to diagnose, service, and maintain diesel engine systems.
: Upon successful completion of the Medium/Heavy Diesel Automotive Technology three course series, students will be prepared to sit for the Automotive Service Excellence (ASE) national certification exam to become a Certified Medium/Heavy Truck Technician.
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Lesson 1
Module 1: Technician Role, Safety, and Professional Practices
Covers technician responsibilities, workplace safety, tools, measurement systems, and professional conduct in diesel service environments.
Module 2: Engine Fundamentals and Operating Principles
Introduces diesel engine theory, cycles, power concepts, configurations, and basic engine system operations.
Module 3: Engine Mechanical Components and Systems
Explores pistons, crankshafts, valve trains, cylinder heads, and core internal engine assemblies.
Module 4: Lubrication and Cooling Systems
Focuses on engine oil systems, cooling components, temperature regulation, and system diagnostics.
Module 5: Airflow, Exhaust Systems, and Maintenance
Covers intake systems, turbochargers, emissions components, and routine engine maintenance procedures.
Module 6: Engine Service, Testing, and Performance Evaluation
Introduces engine disassembly, inspection, rebuilding processes, and performance testing methods.
Medium / Heavy Diesel Automotive Technician – Level 2
Module 1: Diesel Fuel Systems and Properties
Covers fuel chemistry, combustion principles, fuel storage, and complete fuel delivery systems.
Module 2: Fuel Injection Systems Fundamentals
Introduces injection principles, nozzle types, governors, timing, and mechanical/electronic fuel delivery.
Module 3: Rotary and Distributor Pump Systems
Explores rotary injection pump designs, components, operation, and troubleshooting.
Module 4: Electronic Unit Injector (EUI) Systems
Focuses on ECM-controlled injectors, calibration, diagnostics, and electronic fuel delivery systems.
Module 5: Hydraulic and Electronic Pump Systems
Covers HEUI systems, electronic management, diagnostics, and hybrid fuel injection technologies.
Module 6: Common Rail Fuel Systems
Introduces high-pressure common rail systems, components, diagnostics, and advanced fuel management.
Medium / Heavy Diesel Automotive Technician – Level 3
Module 1: Electrical and Electronic Engine Systems
Covers electrical theory, ECM programming, engine control systems, and diagnostic software tools.
Module 2: Wiring Systems and Vehicle Communication Networks
Explores wiring standards, multiplexing, connectors, relays, and onboard communication systems.
Module 3: Alternative Fuels and Hybrid Technologies
Introduces biodiesel, natural gas, hybrid systems, high-voltage safety, and emerging propulsion technologies.
Module 4: Electronic Engine Management Systems
Covers major OEM engine control systems, ECM functions, and electronic management logic.
Module 5: Manufacturer-Specific Engine Systems
Explores engine management systems from major manufacturers including Detroit Diesel, Navistar, and PACCAR.
Module 6: Emissions and Aftertreatment Systems
Covers EPA standards, DPF, SCR, EGR systems, and diesel emissions control technologies.
Module 7: Advanced Troubleshooting and Diagnostics
Focuses on structured diagnostics, failure analysis, exhaust testing, and HD-OBD troubleshooting methods.
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