Accredited by ASE-NATEF

(Effective Fall 2020)

Students develop the skills necessary to repair and 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 diesel service management, as well as the theory and skills of refrigeration, electronic and mechanical fuel injection, advanced emission diagnostic and repair, chassis maintenance, vehicle inspection, tune-up, engine overhaul, transmission repair, brake service, and handling hazardous waste. Graduates are prepared to take the Pennsylvania Vehicle Safety Inspection examinations, National Institute of Automotive Service Excellence (NIASE) examinations in heavy truck mechanics, Stationary Refrigeration exam (608), Motor Vehicle Air-conditioning exam (609), Allison Transmission certification, Daimler “Get Ahead” Detroit/Freightliner 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.

Remediation Strategies

All students must remediate developmental requirements within the 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 Notes Lecture Lab/Clinical M/S Type
FYE101 First Year Experience 1 .50 1.50 S REQ
DSM154 Diesel Engine Technology 5 5 M REQ
DSM116 Diesel Engines Laboratory 4 12 M REQ
DSM119 Fuel Systems 2 2 M REQ
CSC124 Information, Technology, and Society 3 3 S REQ
MTH011 Career Mathematics 3 2.50 1.50 S REQ
Second Semester Credits Notes Lecture Lab/Clinical M/S Type
DSM117 Introduction to Hydraulics 1 1 M REQ
DSM120 Basic Electricity 4 2 6 M REQ
DSM140 Truck Tractor Chassis and Alignment 3 1 6 M REQ
DSM141 Heavy Duty Brake Systems 2 2 M REQ
DSM142 Powertrain and Brake Systems Lab 4 12 M REQ
DSM146 Commercial Truck Power Train and State Inspection 3 3 M REQ
Third Semester Credits Notes Lecture Lab/Clinical M/S Type
DSM289 Diesel Electronic Fuels: Systems, Operation and Diagnostics 5 3 6 M REQ
DSM242 Diesel Equipment Air Conditioning Systems 2 1 3 M REQ
DSM245 Allison Transmissions 3 2 3 M REQ
ENL010 Communications 3 3 S REQ
Fourth Semester Credits Notes Lecture Lab/Clinical M/S Type
DSM258 Vehicle Electronics/Diagnostic Procedures 3 1 6 M REQ
DSM268 Truck and Trailer Refrigeration Systems 4 2 6 M REQ
DSM278 Automated and Hybrid Drive Systems 2 2 M REQ
WEL100 Introduction to Welding Processes 3 2 3 M REQ
OEC Open Elective / Certificate 3   S OEC


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