Diesel Technology D presents content related to entry-level training for diesel engines and HVAC. The course competencies include the tasks that are required to satisfy ASE Education IMMR level training for Area 1 (Diesel Engines) and Area 6 (Heating, Ventilation, and Air Conditioning). Content standards are written to meet Automotive Service Excellence (ASE) Education Foundation requirements, which also specify task lists, program hours, and safety standards.
Skills taught
Research vehicle engine and HVAC service information including fluid type, vehicle service history, service precautionsInspect engine assembly for condition, levels, and leakages in oil, coolant, air, and fluids, including diesel exhaust fCheck engine operation (starting and running) for problems including noise, vibration, and smokeUse appropriate engine electronic service tools and procedures to check, record, and clear diagnostic codes, checkInspect electronic wiring harness and brackets for wear, bending, cracks, and loosenessInspect crankshaft vibration damper and engine mountsIdentify system components, configurations, and types of cylinder head(s), valve train, engine blockTest engine oil pressure, check operation of pressure sensor, gauge, and sending unit, test engine oil temperatureCheck engine oil level, condition, and consumption and take an engine oil sampleDetermine proper lubricant and perform oil and filter serviceCheck engine coolant type, level, and condition and test coolant for freeze protection and additive package concentratioVerify coolant temperature and check operation of temperature and level sensors, gauge, and sending unitInspect and pressure test engine cooling system components and replace as needed, and inspect drive belt components inclRecover coolant, flush and refill with recommended coolant and additive package, and bleed cooling systemIdentify engine block heater(s). 2023 Revised Alabama Course of Study: Transportation, Distribution and Logistics 96 andInspect turbocharger(s), wastegate(s), piping systems, intake manifold, gaskets, connections, engine exhaust system, exhCheck the air induction system, replace the air filter as needed, and reset the restriction indicator (if applicable)Check and report on fuel level and conditionInspect low-pressure and high-pressure fuel system components including fuel tanks, fuel pump, pump drives, screens, fueReplace fuel filter and prime and bleed fuel systemInspect engine compression and exhaust brake housing, valves, seals, lines, and fittingsIdentify heating, ventilation, and air conditioning (HVAC) components and configurationUse appropriate HVAC electronic service tools and procedures to check, record, and clear diagnostic codesInspect A/C compressor drive belts, pulleys, and tensioners and verify proper belt alignment, and check A/C condenser foCheck A/C system operation including system pressures, visually inspect A/C components for signs of leaks, and check A/CInspect engine cooling system and heater system hoses and pipes, HVAC system-heater ducts, doors, hoses, cabin filtersIdentify the source of A/C system odorsVerify blower motor operation, confirm proper air distribution