Course Number and Title: DSL 204 Diesel Engine Performance
This course prepares the student to diagnose, repair, and service diesel electronic systems and components. Laboratory exercises include diagnosis, disassembly, and repair of electronic components such as computerized engine controls, electronic ignition, fuel injection, and other accessories.
- Demonstrate vehicle diagnostics on issues related to diesel engines. (CCC 1, 2, 3, 4, 5; PGC 1, 2, 4, 5)
- Analyze various electronic engine control systems, and perform proper test procedures. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 3, 4, 5)
- Explain the various air-induction systems, and perform proper test procedures. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 3, 4, 5)
- Explain the various diesel fuel systems, concerns, and perform proper service procedures. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 3, 4, 5)
- Describe diesel emission systems, and perform proper operation and service. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 3, 4, 5)
See Core Curriculum Competencies and Program Graduate Competencies at the end of the syllabus. CCPOs are linked to every competency they develop.
Upon completion of this course, the student will:
- Demonstrate vehicle diagnostics on issues related to diesel engines.
- Identify engine model and serial number to research applicable vehicle and service information, service precautions, technical service bulletins, and service campaigns/updates; and determine needed actions.
- Troubleshoot if the problem is electrical/electronic or engine mechanical.
- Evaluate engine exhaust output (odor, color, quantity, residue, etc.); and determine needed actions.
- Use appropriate diagnostic tools and procedures based on available vehicle data and service information; and determine if available information is adequate to proceed with effective diagnosis.
- Diagnose performance concerns caused by engine cooling system problems and engine lubrication system problems.
- Troubleshoot various noise concerns as it relates to the diesel engine; and determine needed actions.
- Diagnose performance concerns caused by vehicle operation and/or operational conditions.
- Visually inspect wiring harnesses and connectors; check for proper routing, condition, and mounting hardware; and determine needed actions.
- Diagnose surging, rough operation, misfiring, low power, slow acceleration, slow deceleration, derate, and shutdown concerns; and determine needed actions.
- Analyze various electronic engine control systems, and perform proper test procedures.
- Inspect and test for missing, modified, or damaged powertrain control components.
- Check and record diagnostic trouble codes (DTCs), freeze frame/snapshot, and/or operational data; interpret live data; download/save electronic control module (ECM) data (image); and determine further diagnosis.
- Connect diagnostic tools to vehicles and access appropriate control systems, parameters and calibration settings as needed.
- Use a diagnostic tool, digital multimeter (DMM), or digital storage oscilloscope (DSO) to inspect or test computerized engine control system sensors, actuators, circuits and electronic control modules (ECM); and determine needed actions.
- Test and confirm operation of electrical/electronic circuits not displayed on diagnostic tools.
- Diagnose concerns resulting from failures of interrelated systems (for example: safety, cruise control, security theft deterrent, transmission, electronic stability control, auxiliary power units (APU), and non-OEM installed accessories).
- Measure and interpret voltage, voltage drop, amperage, duty cycle, frequency, capacitance, and resistance readings using a digital multimeter (DMM) or appropriate test equipment.
- Check, test, repair, and/or replace electrical connectors, pins, harnesses, seals, and locks.
- Troubleshoot failures in the data communications bus networks; and determine needed actions.
- Explain the various air-induction systems, and perform proper test procedures.
- Perform air intake system restriction, pressure, and leakage tests; and determine needed actions.
- Test and replace intake air temperature, flow, and pressure sensors.
- Check and test turbocharger(s); inspect and test electronic controls, actuators, and sensors.
- Inspect, test, and replace wastegate and wastegate controls; and calibrate as needed.
- Inspect and test engine preheater/cold-start aids and controls.
- Explain the various diesel fuel systems, concerns, and perform proper service procedures.
- Identify if the fuel control system concern is electrical/electronic or mechanical.
- Check fuel system for air, contamination and quality; determine needed repairs; and prime and bleed fuel system.
- Identify and test fuel supply system pressure, restriction, and return fuel rates; and determine needed actions.
- Check, adjust, and repair or replace electronic throttle and power take-off (PTO) control components, circuits, and sensors.
- Test, and replace high-pressure common rail (HPCR) fuel system electronic and mechanical components.
- Inspect, test, and replace hydraulic electronic unit injection (HEUI) fuel system electronic and mechanical components.
- Inspect, test, and replace electronic unit injection (EUI) fuel system electronic and mechanical components.
- Describe diesel emission systems, and perform proper operation and service.
- Perform exhaust system leak test, back pressure test and temperature tests (if applicable); and determine needed actions.
- Check, test, and repair or replace exhaust aftertreatment system components and controls including: diesel oxidation catalyst (DOC), selective catalytic reduction (SCR), diesel exhaust fluid (DEF), diesel particulate filter (DPF); and check regeneration system operation.
- Inspect and test EGR system components, including EGR valve(s), cooler(s), piping, sensors, controls, and wiring and perform proper service procedures.
- Inspect and test airflow control valves, sensors, and controls; and determine needed actions.
- Inspect, test, and replace crankcase ventilation system components; and determine needed actions.
The grade will be determined using the Delaware Tech grading system:
Students should refer to the Student Handbook for information on the Academic Standing Policy, the Academic Integrity Policy, Student Rights and Responsibilities, and other policies relevant to their academic progress.
Calculated using the following weighted average
Percentage of final grade
Summative – (4-6) Tests (equally weighted)
Summative – (7-10) Quizzes (equally weighted)
Summative/Formative – Minimum 10 Repair Orders/Worksheets (equally weighted)
Summative Assessments - Minimum 2 Practical Assessments (equally weighted)
- Apply clear and effective communication skills.
- Use critical thinking to solve problems.
- Collaborate to achieve a common goal.
- Demonstrate professional and ethical conduct.
- Use information literacy for effective vocational and/or academic research.
- Apply quantitative reasoning and/or scientific inquiry to solve practical problems.
- Use appropriate diesel diagnostic and service equipment, hand tools, and precision measuring devices to determine and perform the proper repair as necessary.
- Interpret diesel electronic service information, service manuals, and diagnostic charts.
- Document service repair procedures that accurately reference the 3Cs:
- Customer complaint verification
- Correct the problem
- Complete the repair
- Employ proper diesel industry service facility safety practices.
- Practice professional conduct as required in the diesel industry.
The College is committed to providing reasonable accommodations for students with disabilities. Students are encouraged to schedule an appointment with the campus Disabilities Support Counselor to request an accommodation needed due to a disability. A listing of campus Disabilities Support Counselors and contact information can be found at the disabilities services web page or visit the campus Advising Center.