# Automotive Service Technicians and Mechanics > Diagnose, adjust, repair, or overhaul automotive vehicles. - Code: 49-3023.00 (O*NET-SOC; SOC 2018 49-3023) - Family: [Installation, Maintenance & Repair](https://foundation.org.ai/occupations#family-49), one of its 52 occupations - Tasks: 30 tasks (25 core, 3 supplemental and 2 not rated) - Page: https://foundation.org.ai/occupations/49-3023.00 - JSON: https://foundation.org.ai/data/tasks/49-3023.00.json ## What the work is made of 1. Inspect vehicles for damage and record findings so that necessary repairs can be made. Core task · Task 23523 · Rated by 36 people who do the job, August 2022 2. Test drive vehicles and test components and systems, using equipment such as infrared engine analyzers, compression gauges, and computerized diagnostic devices. Core task · Task 23522 · Rated by 81 people who do the job, August 2022 3. Test and adjust repaired systems to meet manufacturers' performance specifications. Core task · Task 23524 · Rated by 82 people who do the job, August 2022 4. Repair, reline, replace, and adjust brakes. Core task · Task 23525 · Rated by 82 people who do the job, August 2022 5. Review work orders and discuss work with supervisors. Core task · Task 23527 · Rated by 82 people who do the job, August 2022 6. Estimate costs of vehicle repair. Core task · Task 23526 · Rated by 35 people who do the job, August 2022 7. Confer with customers to obtain descriptions of vehicle problems and to discuss work to be performed and future repair requirements. Core task · Task 23529 · Rated by 82 people who do the job, August 2022 8. Align vehicles' front ends. Core task · Task 23530 · Rated by 82 people who do the job, August 2022 9. Align wheels, axles, frames, torsion bars, and steering mechanisms of automobiles, using special alignment equipment and wheel-balancing machines. Core task · Task 23537 · Rated by 35 people who do the job, August 2022 10. Tear down, repair, and rebuild faulty assemblies, such as power systems, steering systems, and linkages. Core task · Task 23532 · Rated by 82 people who do the job, August 2022 11. Perform routine and scheduled maintenance services, such as oil changes, lubrications, and tune-ups. Core task · Task 23533 · Rated by 84 people who do the job, August 2022 12. Plan work procedures, using charts, technical manuals, and experience. Core task · Task 23535 · Rated by 82 people who do the job, August 2022 13. Follow checklists to ensure all important parts are examined, including belts, hoses, steering systems, spark plugs, brake and fuel systems, wheel bearings, and other potentially troublesome areas. Core task · Task 23534 · Rated by 84 people who do the job, August 2022 14. Maintain cleanliness of work area. Core task · Task 23536 · Rated by 81 people who do the job, August 2022 15. Change spark plugs, fuel filters, air filters, and batteries in hybrid electric vehicles. Core task · Task 23542 · Rated by 35 people who do the job, August 2022 16. Repair and service air conditioning, heating, engine cooling, and electrical systems. Core task · Task 23540 · Rated by 84 people who do the job, August 2022 17. Disassemble units and inspect parts for wear, using micrometers, calipers, and gauges. Core task · Task 23541 · Rated by 81 people who do the job, August 2022 18. Test electronic computer components in automobiles to ensure proper operation. Core task · Task 23531 · Rated by 35 people who do the job, August 2022 19. Overhaul or replace carburetors, blowers, generators, distributors, starters, and pumps. Core task · Task 23543 · Rated by 82 people who do the job, August 2022 20. Repair or replace parts such as pistons, rods, gears, valves, and bearings. Core task · Task 23544 · Rated by 82 people who do the job, August 2022 21. Rewire ignition systems, lights, and instrument panels. Core task · Task 23545 · Rated by 82 people who do the job, August 2022 22. Troubleshoot fuel, ignition, and emissions control systems, using electronic testing equipment. Core task · Task 23528 · Rated by 36 people who do the job, August 2022 23. Tune automobile engines to ensure proper and efficient functioning. Core task · Task 23538 · Rated by 35 people who do the job, August 2022 24. Repair, replace, or adjust defective fuel injectors, carburetor parts, and gasoline filters. Core task · Task 23539 · Rated by 35 people who do the job, August 2022 25. Install, adjust, or repair hydraulic or electromagnetic automatic lift mechanisms used to raise and lower automobile windows, seats, and tops. Core task · Task 23546 · Rated by 35 people who do the job, August 2022 26. Conduct visual inspections of compressed natural gas fuel systems to identify cracks, gouges, abrasions, discoloration, broken fibers, loose brackets, damaged gaskets, or other problems. Supplemental task · Task 23548 · Rated by 36 people who do the job, August 2022 27. Rebuild parts, such as crankshafts and cylinder blocks. Supplemental task · Task 23547 · Rated by 82 people who do the job, August 2022 28. Diagnose and replace or repair engine management systems or related sensors for flexible fuel vehicles (FFVs) with ignition timing, fuel rate, alcohol concentration, or air-to-fuel ratio malfunctions. Supplemental task · Task 23549 · Rated by 36 people who do the job, August 2022 29. Repair or rebuild transmissions. Not rated · Task 23550 · Listed by O*NET analysts, November 2020 30. Retrofit vehicle fuel systems with aftermarket products, such as vapor transfer devices, evaporation control devices, swirlers, lean burn devices, and friction reduction devices, to enhance combustion and fuel efficiency. Not rated · Task 23551 · Listed by O*NET analysts, November 2020 ## More in Installation, Maintenance & Repair - [Aircraft Mechanics and Service Technicians](https://foundation.org.ai/occupations/49-3011.00): 38 tasks - [Audiovisual Equipment Installers and Repairers](https://foundation.org.ai/occupations/49-2097.00): 11 tasks - [Automotive Body and Related Repairers](https://foundation.org.ai/occupations/49-3021.00): 25 tasks - [Automotive Glass Installers and Repairers](https://foundation.org.ai/occupations/49-3022.00): 18 tasks - [Avionics Technicians](https://foundation.org.ai/occupations/49-2091.00): 13 tasks - [Bicycle Repairers](https://foundation.org.ai/occupations/49-3091.00): 14 tasks - [Bus and Truck Mechanics and Diesel Engine Specialists](https://foundation.org.ai/occupations/49-3031.00): 26 tasks - [Camera and Photographic Equipment Repairers](https://foundation.org.ai/occupations/49-9061.00): 15 tasks - [Coin, Vending, and Amusement Machine Servicers and Repairers](https://foundation.org.ai/occupations/49-9091.00): 18 tasks - 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