Unit of competency Outline

Date retreived
22/07/2026 1:28 AM AWST

Whilst all efforts are made to provide accurate and timely information from the relevant source/documentation, please be aware that the information supplied may not be the most current version. The accuracy of the detail has not been confirmed by the Department and therefore should not be relied upon without first confirming the contents.

Analyse and evaluate light vehicle engine and fuel system faults

Analyse and evaluate light vehicle engine and fuel system faults

Unit of competency
National Code
AURT570293A
State Code
W5108
TGA Status
Replaced
DTWD Status
Replaced
Current Release Number
1.00
Current Release Date
01/09/2008
State Implementation and Classification
Approved Date
03/03/2011
Field of Education
030503 - Vehicle Mechanics
Original Release Date
03/03/2011
Nominal Hours
36
Description
This unit covers the competence to analyse and evaluate light vehicle engine and fuel systems in order to initiate action to sustain, vary or enhance performance.
Notes
Elements and Performance Criteria
1. Identify and confirm the work requirement
  • 1.1. Work instructions and reports are used to determine the nature and objective of the analysis and evaluation requirements.
  • 1.2. Benchmark specifications for correctly functioning light vehicle engines are accessed and interpreted.
  • 1.3. OH&S requirements, including equipment and system isolation requirements and personal protection needs are observed throughout the work.
  • 1.4. Effects of systemic deficiencies/discrepancies or faults are identified and confirmed from indirect and/or direct evidence.
  • 1.5. Possible safety impacts of the work are considered and responded to in accordance with regulatory and enterprise obligations and practices.
2. Prepare for analysis and evaluation
  • 2.1. Evaluative criteria are developed/adopted to meet objectives of the work.
  • 2.2. System performance achievements and/or discrepancies are identified from an analysis of technical support information and available on-board diagnostic systems.
  • 2.3. Analytical and evaluative methodology, including diagnostic process, sequence, tests and testing equipment are developed and/or identified and selected from the range of available options.
  • 2.4. Testing equipment is obtained and prepared for application in accordance with regulatory, manufacturer/component supplier and enterprise requirements.
  • 2.5. Tooling and materials required to support the diagnostic process are identified, selected and prepared for use.
  • 2.6. Light vehicle engine and fuel system components are prepared for the diagnostic process, including park-up, isolation and cleaning requirements.
3. Apply the analysis and evaluative methodology
  • 3.1. Selected analytical and diagnostic process is followed in accordance with specifications and directions and/or the locally authorised method.
  • 3.2. Tests and testing equipment are applied in accordance with regulatory requirements and manufacturer/component supplier specifications.
  • 3.3. Analytical and other diagnostic findings are verified, if necessary, by using reliable alternate or optional processes, and documented.
  • 3.4. Analytical findings and results are evaluated against the agreed criteria.
  • 3.5. Valid conclusions are drawn from the available evidence and documented to enterprise requirements.
  • 3.6. Information and detail related to the analysis and evaluation is provided to the appropriate parties in accordance with regulatory and commercial obligations.
4. Select response measure
  • 4.1. Options for responding to the objective or need are identified from further research of technical support information.
  • 4.2. A response option is selected from an analysis of the options, prevailing circumstance, regulatory requirements and commercial policies.
  • 4.3. Selected response option is documented and reported in accordance with regulatory and enterprise requirements and practices.
5. Restore the workplace
  • 5.1. Materials that can be reused is collected and stored.
  • 5.2. Testing equipment and support materials are cleaned, maintained and prepared ready for further use or stored in accordance with manufacturer/component supplier specifications and enterprise requirements.
  • 5.3. Waste and scrap is removed following workplace procedures.
  • 5.4. Equipment and work area are cleaned and inspected for serviceable condition in accordance with workplace procedures.
  • 5.5. Unserviceable equipment is tagged and faults identified in accordance with workplace procedures.
The objectives of the failure analysis and evaluation process may determine fault rectification measures, effect variation in system characteristics and parameters or enhancing system performance
Engine and fuel systems are to include two-stroke, four-stroke rotary, petrol engine to 8 litres and diesel engine to 8 litres
Engine and fuel systems to be covered in this unit are to include the engine and related fuel, ignition, intake, exhaust, lubrication and cooling systems. Systems are to include innovative engine design and ceramic engine componentry
Engine and fuel system failures covered by this unit are to include engine (poor performance, excessive oil consumption, engine stoppages), fuel (contamination, flow, pressure, leakage), ignition (no-start, no-run, misfire, erratic operation, lack of power, charging), intake (leakage, noise, vibration, inadequate control, exhaust (pressure, abnormal emissions), lubrication (pressure, flow, leakage, abnormal engine wear, inadequate filtration, sludge formation, excessive deposits, overheating), cooling (overcooling, insufficient cooler flow, coolant out of specification, lack or air flow, internal corrosion), mounting (noise, vibration, hardness, clutch shudder, erratic transmission control)
Engine and fuel system failures covered by this unit are to include indirect faults caused by the influence of external systems which may or may not be faulty in their primary operations

OH&S requirements include vehicle industry regulations, safety management systems, hazardous substances and dangerous goods code and safe operating procedures
Work is carried out in accordance with legislative obligations, Australian Design Rules, environmental legislation, health regulations, manual handling procedures and organisation insurance requirements
Work requires individuals to demonstrate research, analytical, judgement and problem-solving skills in the diagnosis of faults

Evaluative criteria, sometimes referred to as success factors, detail the criteria against which the achievement of the objectives of the analysis judged. They are to include statistically based criteria and may include other measures

Equipment isolation procedures to industry and enterprise standards

Testing equipment is to include bore gauges, compression gauges, computer-based diagnostic system (direct and internet), cooling system analyser, dial gauges, exhaust gas analysers, micrometers, multimeter, oscilloscope, pressure gauges, stethoscope, telescopic gauges, temperature gauges, tachometer, timing lights, vacuum gauges, verniers, and may include anemometer, barometer, hygrometer, specific gravity gauge

Tests are to include component wear analysis, compression, cylinder leakage, engine performance, exhaust gas sampling, flow, oil consumption, pressure, sample collection/processing, specific gravity, temperature and vacuum

Personal protective equipment is to include that prescribed under legislation, regulations and enterprise policies and practices

Workplace procedures relating to the use of tooling and equipment
Workplace procedures relating to reporting and communication
Manufacturer/component supplier specifications and application procedures for testing equipment and materials
Manufacturer/component supplier specifications, schematics and operational procedures related to light vehicle engine and fuel systems
Australian Design Rules
Vehicle industry regulations
Vehicle industry publications related to emerging steering and suspension system technology and technology changes

Critical aspects for assessment and evidence required to demonstrate competency in this unit
Interpret work order and locate and apply information
Apply safety requirements, including the isolation of equipment and use of personal protective equipment

Follow work instructions, operating procedures and inspection processes to:

minimise the risk of injury to self and others
prevent damage and wastage of goods, equipment and products
maintain required production output and product quality
Complete failure analysis on a minimum of three light vehicle engine and fuel systems with real or simulated multi-system and intermittent faults and identify, evaluate, select and document the most appropriate rectification measures
Analyse and validate or recommend variations to a minimum of two available repair/modification procedures for light vehicle engine and fuel systems
Document and report the diagnostic process and findings and recommended rectification for two of the above
Work effectively with others
Modify activities to cater for variations in workplace context and environment

Underpinning knowledge
Light vehicle terminology and definitions
General knowledge of the concepts, principles and processes involved in planning and implementing systems analysis and evaluation
Basic electrical theory covering voltage, current, resistance, power, magnetics and inductance
Mechanical theory covering the concepts and principles of mechanical, hydraulic and pneumatic systems
General knowledge of the types, functions, operations and limitations of light vehicle engines
Detailed knowledge of the types, function, operations and limitations of light vehicle fuel, ignition, intake, exhaust, lubrication, cooling and engine mounting systems/ components
General knowledge of the theory of diagnosis, including concept, design and planning
Detailed knowledge of the types, functions, operations and limitations of diagnostic testing equipment
General knowledge of automotive digital computing systems
General knowledge of the methods and processes for documenting and reporting diagnostic findings and recommendations

Specific key competencies, underpinning and employability skills required to achieve the performance criteria
These include a number of processes that are learned throughout work and life, which are required in most jobs. Some of these are covered by the national key competencies, although others may be added. The details below highlight how these competencies are to be applied in the attainment of this unit.

Application of the key competencies in this unit are to satisfy the nominated level in which:

Level 1 - relates to working effectively within set conditions and processes;
Level 2 - relates to management or facilitation of conditions or processes; and
Level 3 - relates to design, development and evaluation of conditions or process
How will the candidate apply the following key competency in this unit? The candidate will need to:

Collect, analyse and organise information
Research, organise and understand technical information related to contemporary light vehicle engine and fuel systems, monitoring and testing processes, diagnostic methods and options and safety procedures
(Level 3)

Communicate ideas and information
Communicate ideas and information to enable confirmation of work requirements and specifications, coordination of work with site supervisor, other workers and customers, reporting of work outcomes and completion of regulatory, commercial and vehicle information systems inputs
(Level 2)

Plan and organise activities
Plan and organise activities, including the planning of analytical processes, establishment of evaluative (success) criteria, preparation and layout of the worksite and the obtaining of testing equipment and materials to avoid backtracking, workflow interruptions or wastage
(Level 2)

Work with others and in a team
Work with others and in a team by recognising dependencies and using cooperative approaches to optimise workflow and productivity
(Level 2)

Use mathematical ideas and techniques
Use mathematical ideas and techniques to complete measurements, calculate analytical requirements, calibrate and establish testing equipment and present analytical results
(Level 2)

Solve problems
Establish analytical processes, including diagnostic processes, which anticipate and allow for risks, cater for both direct and indirect evidence, avoid or minimise reworking and avoid wastage
(Level 3)

Use technology
Use the workplace technology related to systems analysis and diagnosis, information research and management systems, testing equipment, maintenance equipment, tooling, calculators and measuring devices
(Level 2)

Context of, and specific resources for assessment
Assessment may occur on the job or in a workplace simulated facility with process equipment, material, work instructions and deadlines

Method of assessment
Assessment of this unit of competence is most likely to be project related under real or simulated conditions and require portfolios or other forms of indirect evidence of process. Direct evidence may include certification of compliance of the final outcome/product or authorisation for use by a competent authority
Assessment must confirm the inference that competence is able not only to be satisfied under the particular circumstances, but is able to be transferred to other circumstances

Specific resource requirements for this unit
Access to a requirement and objectives for analysis and evaluation, light vehicle engine and fuel systems with real or simulated faults, monitoring processes and testing equipment appropriate to the objectives, research facilities and technical information and a work environment

Replaced By
State Code National Code Title Type
WF235 AURLTE5003 Analyse and evaluate light vehicle engine and fuel system faults Unit of competency