Unit 3946: Comprehensive Motor Vehicle Mechanics

1. Introduction to Motor Vehicle Mechanics

• Overview of motor vehicle systems
• Basic engine types: gasoline, diesel, electric, hybrid
• Transmission types: manual, automatic, CVT
• Suspension systems: components and functions
• Braking systems: disc brakes, drum brakes, ABS

2. Safety Procedures in Motor Vehicle Maintenance

• Importance of safety in automotive work
• Personal protective equipment (PPE): gloves, goggles, boots, ear protection
• Proper tool usage and maintenance
• Handling hazardous materials: oils, coolants, fuels
• Emergency procedures and accident prevention

3. Engine Maintenance and Troubleshooting

• Engine components: spark plugs, filters, belts, hoses
• Inspection and replacement procedures
• Common engine problems and diagnostic techniques
• Ensuring optimal engine performance and efficiency

4. Transmission Systems and Maintenance

• Understanding manual, automatic, and CVT transmission systems
• Fluid types and change intervals
• Adjustments and common issues
• Maintenance procedures and troubleshooting

5. Suspension and Steering System Repairs

• Suspension components: springs, shock absorbers, struts
• Steering systems: rack and pinion, power steering
• Diagnosing suspension and steering problems
• Repair techniques and wheel alignment procedures

6. Brake System Inspection and Repair

• Brake system components: pads, rotors, calipers, brake fluid
• Inspection techniques for wear and damage
• Maintenance: pad replacement, rotor resurfacing, fluid flushing
• Repair safety and proper procedures

7. Electrical System Diagnostics

• Overview of vehicle electrical systems: batteries, alternators, starters, wiring
• Electrical circuit basics and testing methods
• Diagnosing electrical faults using tools
• Repair and replacement techniques

8. Fuel System Maintenance

• Fuel delivery components: fuel injectors, pumps, filters
• Fuel system cleaning and maintenance
• Pressure testing and leak detection
• Troubleshooting fuel system issues

9. Cooling System Service

• Cooling system components: radiators, water pumps, thermostats, coolant
• Maintenance procedures: flushing, refilling, leak detection
• Diagnosing cooling system failures
• Preventative care for overheating issues

10. Advanced Diagnostic Tools and Techniques

• Introduction to scan tools, multimeters, oscilloscopes
• Using diagnostic tools to identify complex issues
• Reading and interpreting diagnostic codes
• Practical exercises with diagnostic equipment