-Test drive vehicles, and test components and systems, using equipment such as infrared engine analyzers, compression gauges, and computerized diagnostic devices. -Examine vehicles to determine extent of damage or malfunctions. -Repair, reline, replace, and adjust brakes. -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. -Confer with customers to obtain descriptions of vehicle problems, and to discuss work to be performed and future repair requirements. -Perform routine and scheduled maintenance services such as oil changes, lubrications, and tune-ups. -Repair and service air conditioning, heating, engine-cooling, and electrical systems. -Test and adjust repaired systems to meet manufacturers' performance specifications. -Review work orders and discuss work with supervisors. -Tear down, repair, and rebuild faulty assemblies such as power systems, steering systems, and linkages.