Category: Automotive Technicians

To repair cars effectively, automotive technicians need to read and understand a lot of different information. Here is some of the most important information:

1. General Vehicle Information:

• Make, Model, Year: Accurately identifies the vehicle type to find the appropriate repair information.
• VIN (Vehicle Identification Number): The vehicle’s unique serial number, allowing access to detailed information about its configuration, genuine parts, and maintenance history (if available).
• Engine and Transmission Type: This information is crucial as repair procedures and related components will differ depending on the engine type (gasoline, diesel, hybrid, electric) and transmission type (manual, automatic).
• Mileage: Helps assess the wear and tear of components and predict potential issues.

2. Information about the Vehicle’s Current Problem:

• Detailed Description from the Customer: Carefully listen to and record all symptoms, strange noises, warning lights, or any unusual signs provided by the customer.
• Initial Diagnostic Results: If the vehicle has undergone a preliminary inspection or has error codes from a scanner, the technician needs to read and understand the Diagnostic Trouble Codes (DTCs) and related descriptions.
• Direct Observation: The technician needs to directly inspect the vehicle, observe components, listen for sounds, smell odors, and feel for vibrations to gather more information.

3. Technical Documents and Repair Manuals:

• Repair Manual: This document provides detailed information about the structure, operating principles, disassembly, inspection, and repair procedures for each component and system of the vehicle.
• Wiring Diagram: Very important for diagnosing and repairing issues related to the vehicle’s electrical system. Wiring diagrams show how electrical components are connected.
• Technical Drawings/Exploded Views: Help visualize the detailed structure of assemblies and how components are put together.
• Specifications: Include values for dimensions, tolerances, torque, voltage, current, and other parameters necessary for accurate inspection and repair.
• Technical Service Bulletins (TSBs): Information from the manufacturer about common issues, identified faults, and recommended fixes.
• Instructions for Using Diagnostic Equipment and Special Tools: To use the tools effectively and safely.

4. Experience and Professional Knowledge:

• Knowledge of the Operating Principles of Vehicle Systems: Engine, transmission, steering system, braking system, suspension system, electrical system, air conditioning system, etc.
• Practical Experience: Through work experience, technicians accumulate knowledge in identifying common problems and effective repair methods.
• Keeping Up with New Knowledge: Automotive technology is constantly evolving, so technicians need to continuously learn and update their knowledge of new systems and technologies.

We have 500 questions for Auto Repair Technicians to Improve Skills, above

1. What is the basic operating principle of an internal combustion engine?
2. What is the difference between a gasoline and a diesel engine?
3. What are the common types of drivetrain systems currently available?
4. What is the operating principle of the ABS braking system?
5. What is the role of the suspension system in a car?
6. What is the operating principle of an Electric Power Steering (EPS) system?
7. What voltage does the electrical system in a car typically use?
8. What are the common types of sensors found in cars and what are their functions?
9. What is the operating principle of a catalytic converter?
10. What is the purpose of the EGR (Exhaust Gas Recirculation) system?
11. What is the definition of the Otto cycle and the Diesel cycle?
12. Compare 2-stroke and 4-stroke engines.
13. What are the common engine layout types (e.g., inline, V-type, flat)?
14. What is the operating principle of Electronic Fuel Injection (EFI)?
15. What are the types of position sensors (e.g., crankshaft, camshaft)?
16. What are the types of flow sensors (e.g., mass airflow)?
17. What are the types of pressure sensors (e.g., manifold absolute pressure)?
18. What is the operating principle of a Turbocharger and a Supercharger?
19. What is the difference between Front-Wheel Drive (FWD), Rear-Wheel Drive (RWD), and Four-Wheel Drive (AWD/4WD) systems?
20. What is the operating principle of a manual transmission?
21. What are the common types of automatic transmissions (e.g., dual-clutch, continuously variable)?
22. What is the operating principle of a torque converter in an automatic transmission?
23. What are the types of disc brake systems?
24. What are the types of drum brake systems?
25. What is the operating principle of an Anti-lock Braking System (ABS)?
26. What is the operating principle of Electronic Brakeforce Distribution (EBD)?
27. What is the operating principle of Brake Assist (BA)?
28. What are the types of dependent and independent suspension systems?
29. What are the types of suspension springs (e.g., coil spring, leaf spring)?
30. What are the types of shock absorbers (e.g., hydraulic, pneumatic)?
31. What is the operating principle of a mechanical steering system?
32. What is the operating principle of a hydraulic power steering system?
33. What are the types of wheel alignment angles (e.g., camber, caster, toe)?
34. What is the operating principle of a Direct Current (DC) electrical system in a car?
35. What are the main components of a car’s electrical system?
36. What is the operating principle of a lead-acid battery?
37. What is the operating principle of an alternator?
38. What is the operating principle of a starter motor?
39. What are the basic types of electrical circuits (e.g., series, parallel)?
40. What is the operating principle of an air conditioning system in a car?