AURLTE003
Analyse and evaluate faults in light vehicle engine and fuel systems


Application

This unit describes the performance outcomes required to analyse and evaluate faults in light vehicle engine and fuel systems in order to initiate action to sustain, vary or enhance performance. It involves identifying, evaluating, selecting, justifying and documenting the most appropriate rectification method or variation to the rectification method. The unit includes the analysis of multi-system and intermittent faults which may be caused by operating in adverse conditions.

It applies to those working in the automotive service and repair industry. The engine and fuel systems may be petrol or diesel and include those of light vehicles or light commercial vehicles.

No licensing, legislative, regulatory or certification requirements apply to this unit at the time of publication.


Elements and Performance Criteria

Elements

Elements describe the essential outcomes.

Performance Criteria

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold and italicised text is used, further information is detailed in the range of conditions section.

1. Identify and confirm the work requirement

1.1 Objective of analysis and evaluation is determined from workplace instructions

1.2 Specifications for light vehicle engine or fuel system are sourced and interpreted

1.3 System faults, deficiencies or discrepancies are identified and confirmed

1.4 Hazards associated with the work are identified and risks are managed according to workplace procedures, and safety and environmental requirements

2. Prepare for analysis and evaluation

2.1 Evaluation criteria are developed or adopted to meet the objective of the analysis and evaluation

2.2 Analytical and evaluative methodology is developed or identified from technical information

2.3 Testing equipment is prepared according to manufacturer specifications and workplace procedures

2.4 Tools and materials required to support the diagnostic procedure are identified, selected and prepared for use

2.5 Engine or fuel system and components are prepared for the diagnostic process

3. Carry out failure analysis

3.1 Selected analytical and evaluative methodology is followed according to manufacturer specifications and workplace procedures

3.2 Tests are carried out according to manufacturer specifications, workplace procedures, and safety and environmental requirements

3.3 Analytical and other diagnostic findings are verified, as required, by using reliable alternative or optional processes

3.4 Analytical findings and results are assessed against evaluation criteria

3.5 Valid conclusions are drawn from available evidence and documented according to workplace requirements

4. Make recommendations

4.1 Options for responding to the objective are determined from further research of technical support information

4.2 Rectification method is selected from an analysis of the options, operating conditions, regulatory requirements, Australian Design Rules, and financial implications

4.3 Report is prepared specifying analysis and evaluation process, and detailing and justifying rectification method or variation to the rectification method

5. Complete work processes

5.1 Final inspection is made to ensure work is to workplace expectations

5.2 Work area is cleaned, waste and non-recyclable materials are disposed of, and recyclable material is collected

5.3 Tools and equipment are checked and stored according to workplace procedures

5.4 Workplace documentation is processed according to workplace procedures

Evidence of Performance

Before competency can be determined, individuals must demonstrate they can perform the following according to the standards defined in this unit’s elements, performance criteria, range of conditions and foundation skills:

analyse and evaluate a fault in the:

engine system of a light vehicle

fuel system of a different light vehicle

engine or fuel system of a third light vehicle.


Evidence of Knowledge

Individuals must be able to demonstrate knowledge of:

work health and safety (WHS) and occupational health and safety (OHS) requirements relating to analysing and evaluating faults in light vehicle engine and fuel systems, including procedures for working with:

hot engine components and rotating engine components

hazardous substances, including:

diesel fuel

petrol fuel

engine oil and coolants

environmental requirements, including procedures for trapping, storing and disposing of fluids released from engine and fuel systems

principles and processes involved in planning and implementing analysis and evaluation of light vehicle engine and fuel system faults

design and planning of diagnostic procedures of light vehicle engine and fuel system faults, including procedures for diagnosing:

hydraulic faults

mechanical faults

electrical faults

procedures for analysing and evaluating light vehicle engine and fuel system faults, including:

system failure analysis

component failure analysis

types, functions, operation and limitations of the following engine and fuel systems:

petrol engines

diesel engines

petrol fuel systems

diesel fuel systems

testing procedures for light vehicle engine and fuel systems, including:

engine performance under load

fuel flow and pressure

cooling system performance under load

oil pressure

exhaust flow

types, functions, operation and limitations of diagnostic testing equipment required to analyse and evaluate faults in light vehicle engine and fuel systems

procedures for documenting and reporting the analysis and evaluation process

requirements of Australian Design Rules (ADRs) relating to light vehicle engine and fuel systems.


Assessment Conditions

Assessors must satisfy NVR/AQTF assessor requirements.

Competency is to be assessed in the workplace or a simulated environment that accurately reflects performance in a real workplace setting.

Assessment must include direct observation of tasks.

Where assessment of competency includes third-party evidence, individuals must provide evidence that links them to the light vehicle engine and fuel systems that they have worked on, e.g. repair orders.

Assessors must verify performance evidence through questioning on skills and knowledge to ensure correct interpretation and application.

The following resources must be made available:

automotive repair workplace or simulated workplace

workplace instructions

manufacturer light vehicle engine and fuel system specifications

three different light vehicles with engine and fuel system faults

diagnostic equipment for light vehicle engine and fuel systems

tools, equipment and materials appropriate for analysing and evaluating light vehicle engine and fuel systems.


Foundation Skills

This section describes those language, literacy, numeracy and employment skills that are essential to performance and are not explicit in the performance criteria.

Skills

Description

Learning skills to:

apply learning and processes to different situations.

Reading skills to:

research, organise and interpret technical information relating to light vehicle engine and fuel systems.

Writing skills to:

legibly and accurately fill out workplace documentation when reporting failure analysis findings

document and complete reports.

Numeracy skills to:

use mathematical ideas and techniques to complete measurements, calculate analytical requirements, calibrate testing equipment and present analytical results.

Planning and organising skills to:

plan own work requirements and prioritise actions to achieve required outcomes and ensure tasks are completed within workplace timeframes.

Technology skills to:

use specialised light vehicle engine and fuel system diagnostic equipment.


Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Safety and environmental requirements must include:

work health and safety (WHS) and occupational health and safety (OHS) requirements, including procedures for working with:

hot engine components and rotating engine components

hazardous substances, including:

diesel fuel

petrol fuel

engine oil and coolants

environmental requirements, including procedures for trapping, storing and disposing of fluids released from engine and fuel systems.

Analytical and evaluative methodology must include:

diagnostic process, sequence, tests and testing equipment.


Sectors

Technical - Engines


Competency Field

Mechanical - Light Vehicle