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Automotive Master Mechanics - 49-3023.01

O*NET-SOC Description

Repair automobiles, trucks, buses, and other vehicles. Master mechanics repair virtually any part on the vehicle or specialize in the transmission system.

Sample of Reported Job Titles

  • Auto Technician
  • Automobile Technician
  • Automotive Service Technician
  • Automotive Technician
  • Certified ASE Master Automotive Technician (Certified Automotive Service Excellence Master Automotive Technician)
  • Master Automotive Technician
  • Master Technician
  • Mechanic
  • Shop Foreman
  • Truck Technician

SOC Occupation Groups

Related Occupations


  • Align vehicles' front ends.
  • Confer with customers to obtain descriptions of vehicle problems and to discuss work to be performed and future repair requirements.
  • Disassemble units and inspect parts for wear, using micrometers, calipers, and gauges.
  • Examine vehicles to determine extent of damage or malfunctions.
  • 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.
  • Install and repair accessories, such as radios, heaters, mirrors, and windshield wipers.
  • Maintain cleanliness of work area.
  • Overhaul or replace carburetors, blowers, generators, distributors, starters, and pumps.
  • Perform routine and scheduled maintenance services, such as oil changes, lubrications, and tune-ups.
  • Plan work procedures, using charts, technical manuals, and experience.
  • Rebuild parts, such as crankshafts and cylinder blocks.
  • Repair and service air conditioning, heating, engine cooling, and electrical systems.
  • Repair damaged automobile bodies.
  • Repair manual and automatic transmissions.
  • Repair or replace parts such as pistons, rods, gears, valves, and bearings.
  • Repair or replace shock absorbers.
  • Repair radiator leaks.
  • Repair, reline, replace, and adjust brakes.
  • Replace and adjust headlights.
  • Review work orders and discuss work with supervisors.
  • Rewire ignition systems, lights, and instrument panels.
  • Tear down, repair, and rebuild faulty assemblies, such as power systems, steering systems, and linkages.
  • Test and adjust repaired systems to meet manufacturers' performance specifications.
  • Test drive vehicles and test components and systems, using equipment such as infrared engine analyzers, compression gauges, and computerized diagnostic devices.

Detailed Work Activities

  • Adjust equipment to ensure optimal performance.
  • Adjust vehicle components according to specifications.
  • Align equipment or machinery.
  • Clean work areas.
  • Confer with coworkers to coordinate work activities.
  • Confer with customers or users to assess problems.
  • Disassemble equipment for maintenance or repair.
  • Disassemble equipment to inspect for deficiencies.
  • Inspect mechanical components of vehicles to identify problems.
  • Inspect vehicles to determine overall condition.
  • Install audio or communications equipment.
  • Install vehicle parts or accessories.
  • Operate transportation equipment to demonstrate function or malfunction.
  • Plan work procedures.
  • Read work orders or descriptions of problems to determine repairs or modifications needed.
  • Reassemble equipment after repair.
  • Rebuild parts or components.
  • Repair non-engine automotive or vehicle components.
  • Repair worn, damaged, or defective mechanical parts.
  • Replace worn, damaged, or defective mechanical parts.
  • Rewire electrical or electronic systems.
  • Service heating, ventilation or air-conditioning (HVAC) systems or components.
  • Service vehicles to maintain functionality.
  • Test mechanical systems to ensure proper functioning.

Military Crosswalk Titles

  • Assault Amphibious Vehicle (AAV) Repairer/Technician (Marine Corps - Enlisted)
  • Automotive Intermediate Maintenance Technician (Marine Corps - Enlisted)
  • Automotive Maintenance Technician (Marine Corps - Enlisted)
  • Aviation Support Equipment Technician (Navy - Enlisted)
  • Basic Motor Transport Marine (Marine Corps - Enlisted)
  • BRADLEY Fighting Vehicle System Maintainer (Army - Enlisted)
  • Construction Mechanic (Navy - Enlisted)
  • Construction Mechanic - Automotive (Coast Guard - Enlisted)
  • Construction Mechanic Basic (Navy - Enlisted)
  • Crash /Fire/ Rescue Vehicle Mechanic (Marine Corps - Enlisted)
  • Crash/Fire/Rescue Vehicle Technician (Marine Corps - Enlisted)
  • Engineer Equipment Mechanic (Marine Corps - Enlisted)
  • Expeditionary Fighting Vehicle (EFV) Repairer/Technician (Marine Corps - Enlisted)
  • Fuel and Electrical Systems Mechanic (Marine Corps - Enlisted)
  • General Purpose Vehicle Maintenance Apprentice (Air Force - Enlisted)
  • General Purpose Vehicle Maintenance Helper (Air Force - Enlisted)
  • General Purpose Vehicle Maintenance Journeyman (Air Force - Enlisted)
  • Light Armored Vehicle (LAV) Repairer/Technician (Marine Corps - Enlisted)
  • Logistics Vehicle System Mechanic (Marine Corps - Enlisted)
  • Main Battle Tank (MBT) Repairer/Technician (Marine Corps - Enlisted)
  • Maintenance Supervisor (Army - Enlisted)
  • Motor Transport Maintenance Chief (Marine Corps - Enlisted)
  • Special Vehicle Maintenance Journeyman, Fire Fighting Vehicles (Air Force - Enlisted)
  • Special Vehicle Maintenance Journeyman, Refueling Vehicles (Air Force - Enlisted)
  • STRYKER Systems Maintainer (Army - Enlisted)
  • Towed Artillery Systems Technician (Marine Corps - Enlisted)
  • Tracked Vehicle Repairer (Army - Enlisted)
  • Vehicle And Vehicular Equipment Maintenance Apprentice (Air Force - Enlisted)
  • Vehicle And Vehicular Equipment Maintenance Helper (Air Force - Enlisted)
  • Vehicle And Vehicular Equipment Maintenance Journeyman (Air Force - Enlisted)
  • Vehicle Recovery Mechanic (Marine Corps - Enlisted)
  • Wheel Vehicle Repairer (Army - Enlisted)
  • Wheeled Vehicle Mechanic (Army - Enlisted)
  • Wheeled Vehicle Repairer (Army - Enlisted)

Apprenticeship Crosswalk Titles

  • Auto, Truck and Trailer Repair Mechanic
  • Automobile Mechanic
  • Carpenter
  • Repairer, Heavy
  • Transmission Mechanic

DOT Crosswalk Titles

  • Automobile Mechanic
  • Automobile-Mechanic Apprentice
  • Repairer, Heavy
  • Squeak, Rattle, and Leak Repairer
  • Transmission Mechanic