Auto Repair takes a fair amount of know-how to diagnose and service today's vehicles. But with research and guidance from knowledgeable mechanics , it can be a very enjoyable hobby. However, auto repair often requires special tools and service equipment to do many repairs. This includes hand tools as well as diagnostic equipment such as a code reader or scan tool, multi-meter, test light and pressure/vacuum gauges. Some repairs also require special tools. You may also need vehicle specific service repair information such as a factory shop manual and wiring diagrams. Doing auto repair yourself can be difficult, dirty and dangerous work, but on the other hand standing next to a completed project will be worth the effort.