The crankcase air breather is located at the engine head cover whereby a tube was connected from the cover to the intake or carburetor. If it is a pvc valve,clean it by just using carb cleaner spray at the hole to free all the oil and gum developed , if it is a cotton or sponge, just use soap or laundry powder (fab) with hot water so that the oil particals can free from the sponge. :blink:
Or if you hove no idea hov to clean it, nvm next time when you servicing your car, you can always ask your machenic to do it 4 you. :lol:
The theory in this excercise is, after you cleaned the breather, your car will drive smoothly, improve torque and better fuel economy. Good luck guys. :D :lol: