With a little information you will be empowered and in control of what your car needs.
I am going to make references that everyone can understand. Ready.....
Like the cooling system of the car. If you have a fever, your not feeling well. Your cars engine needs to be at the right temperature, in order to run right.
Fuel/gas is like food for your body. Your body uses the food for energy. The engine breaks down the fuel to optimize it, to run its body, the engine.
Computers in your car are like the endocrine system. hormones are chemicals that control your body functions. Glands (thyroid, pituitary, penal, pancreas, ovaries...) ecm, pcm, obdII, transmission computer, window computer... a/c heat controls
The gauges/dashlights in your car are like the immune system in your body. They let you know when your car needs a checkup. If your eye is tearing for weeks, it is an indicator you need to see the doctor.
Sensors are important to measure how your car is running. Vehicle speed, engine speed. Like the lymphatic system, it is the defense of the body. It filters out organisms that cause disease, distributes fluids & nutrients in the body.
Engine torque (strength) are like your legs pumping the pedals on a bicycle.
The electrical system of your car is like the nervous system in your body. A pinched nerve in the body can cause the same erratic feelings in your car that has a broken wire
The air induction of your car is like your respiratory system. Your engine will have trouble taking in air, causing your car to choke, similiar to an asthetmic gasping for air.
The frame of your car is the skeletal system of your body Flexibility! If your foot is causing you to limp, that's related to the way you walk. The same holds true for you cars body. If its out of alignment, it reduces its ability to take shock
The exhaust system is like the urinary system of your body. Your body removes waste by going to the bathroom. If you cant remove waste you become ill. Your car does the same job by safely removing waste from the exhaust system.
If you came this far, do not stop now. Be in control of yourself. If you feel that a situation that does not feel right, trust your feelings. More likely than not you are 100% right.