Auto mechanics inspect, repair and maintain vehicles to keep them running safely and efficiently. They may work in a garage or automotive service shop or in a dealership that works with a specific brand of vehicle.

Mechanics use their hands to diagnose and repair cars, including fixing brakes, lubricating engines, replacing parts and testing air bags, among other things. They often use specialized diagnostic equipment, such as computerized testers and scanners, that help them pinpoint issues in a car.

Technicians inspect a vehicle’s parts to identify trouble areas, and they replace worn parts before they cause major problems or lead to breakdowns. During routine maintenance, they use a checklist to ensure they examine every part of the engine and drivetrain. They also inspect belts, hoses and plugs to see if they are in good condition and are not damaged or missing from the vehicle.

Most auto mechanics attend automotive repair schools after graduating from high school, and they typically receive an associate degree in this field. They also work under a master technician for several years before they are allowed to work on their own.

The job of auto mechanic is one that many people pursue because they love working with their hands and learning about new technologies in transportation. They are also able to earn a living that is generally higher than the national average, with some mechanics making upwards of $80,000 per year.

Some mechanics also sell old, unusable cars at a profit to supplement their income. Others make a living as independent contractors by repairing cars for other consumers outside of their usual business hours and locations.

Certification is a common requirement for most mechanics, and it can improve their chances of getting a better-paying position with more specialized shops. The most common type of certification is offered by the National Institute for Automotive Service Excellence, or ASE.

Certified technicians must pass a series of exams and meet certain criteria to retain their status. In some states, a license is not required, but most employers prefer to hire only certified workers.

It is not uncommon for an auto mechanic to specialize in a particular area of the vehicle, such as transmissions or air conditioning systems. These specialists might have a specialty certificate or an associate’s degree in that field and may even need to take additional tests for certification to stay on top of changes and trends within their area of expertise.

An auto mechanic’s job can be a challenging one. They are required to work with their hands and stand for long periods of time, which can cause strain and fatigue on the body. It is recommended that auto mechanics seek regular massages to alleviate the stress they experience while working on cars.

They must be able to diagnose and fix cars in a timely manner, and they must follow manufacturer’s service guidelines when performing repairs. They also must be able to explain to their customers what needs to be done and how the job is progressing.