Diesel Technician (DC)

Accredited by ASE-NATEF

(Effective Fall 2011)

Students develop the skills necessary to maintain diesel-powered highway, industrial, and marine vehicles and equipment. Advanced diesel maintenance techniques and principles are applied in diagnosing malfunctions and prescribing corrective action. The course work emphasizes the theory and skills of refrigeration, electronic and mechanical fuel injection, chassis maintenance, vehicle inspection, tune-up, engine overhaul, transmission repair, brake service, and handling hazardous waste. Students are prepared to take the Pennsylvania Vehicle Safety Inspection Examination, National Institute of Automotive Service Excellence (NIASE) examinations in heavy duty truck mechanics, Stationary Refrigeration exam (608), Motor Vehicle Air-conditioning exam (609), Allison Transmission certification, and Level I Eaton Hybrid certification.

Career Opportunities

Heavy-duty commercial truck technician for a truck dealership, independent garage, truck fleet, or leasing company; contractor or transport refrigeration technician; field service technician representative for diesel engine manufacturer/distributor and the natural gas industry.

Recommended High School Subjects

Three years of English, one year of algebra, and one year of science.

Special Equipment Needs

See the Tool List for this major.

Remediation Strategies

All students must remediate by first year. The order of remediation will be math, reading, and English.

Program Goals

A graduate of this major should be able to:
  • practice approved safety procedures in various work situations.
  • read and interpret vehicle and component service manuals and write clear, accurate, and complete service reports.
  • diagnose and repair mechanical and electronic fuel injection malfunctions.
  • demonstrate the correct use of basic hand tools, special tools, and testing equipment.
  • perform vehicle safety inspections as required by state and federal laws.
  • overhaul and tune up diesel engines.
  • test, adjust, and align truck suspension systems.
  • diagnose and repair common malfunctions to brakes, air conditioning, and refrigeration systems.
  • interpret schematics and wiring diagrams, test starting, charging, lighting, and accessory systems.
  • understand the potential health and safety hazards in the work place and how to properly document and perform corrective action.
  • apply basic electronic principles to engine control and data storage.


First Semester Credits
FYE101 First Year Experience 1  
DSM154 Diesel Engine Technology 5  
DSM116 Diesel Engines Laboratory 4  
DSM119 Fuel Systems 2  
CSC124 Information, Technology, and Society 3  
MTH011 Career Mathematics 3  
Second Semester Credits
DSM117 Introduction to Hydraulics 1  
DSM120 Basic Electricity 4  
DSM140 Truck Tractor Chassis and Alignment 3  
DSM141 Heavy Duty Brake Systems 2  
DSM142 Powertrain and Brake Systems Lab 4  
DSM146 Commercial Truck Power Train and State Inspection 3  
Third Semester Credits
DSM289 Diesel Electronic Fuels: Systems, Operation and Diagnostics 5  
DSM242 Diesel Equipment Air Conditioning Systems 2  
DSM245 Allison Transmissions 3  
ENL010 Communications 3  
Fourth Semester Credits
DSM258 Vehicle Electronics/Diagnostic Procedures 3  
DSM268 Truck and Trailer Refrigeration Systems 4  
DSM278 Automated and Hybrid Drive Systems 2  
WEL100 Introduction to Welding Processes 3  
OEC Open Elective / Certificate 3  


Accredited by the National Automotive Technicians Education Foundation (NATEF).


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