A professional who repairs and overhauls automobiles, buses, trucks, and other automotive vehicles. Respnsibilities include:

• Examines vehicle and discusses with customer or automobile-repair-service estimator; automobile tester; or bus inspector nature and extent of damage or malfunction.
• Plans work procedure, using charts, technical manuals, and experience.
• Raises vehicle, using hydraulic jack or hoist, to gain access to mechanical units bolted to underside of vehicle.
• Removes unit, such as engine, transmission, or differential, using wrenches and hoist.
• Disassembles unit and inspects parts for wear, using micrometers, calipers, and thickness gauges.
• Repairs or replaces parts, such as pistons, rods, gears, valves, and bearings, using mechanic's handtools.
• Overhauls or replaces carburetors, blowers, generators, distributors, starters, and pumps.
• Rebuilds parts, such as crankshafts and cylinder blocks, using lathes, shapers, drill presses, and welding equipment.
• Rewires ignition system, lights, and instrument panel.
• Relines and adjusts brakes, aligns front end, repairs or replaces shock absorbers, and solders leaks in radiator.
• Mends damaged body and fenders by hammering out or filling in dents and welding broken parts.
• Replaces and adjusts headlights, and installs and repairs accessories, such as radios, heaters, mirrors, and windshield wipers.
• May be designated according to specialty as automobile mechanic, motor; bus mechanic; differential repairer; engine-repair mechanic, bus; foreign-car mechanic; truck mechanic.
• May be designated: compressor mechanic, bus; drive-shaft-and-steering-post repairer; engine-head repairer; motor assembler.