Vinegar's acidity is what makes it such a good cleaner. Because vinegar is so acidic, it can counteract some icky buildups. It can dissolve away soap scum, brines left by hard water, and glue left behind by stickers.
The PCV valve is a control device which sends partially burned gases that come from the engine's crankcase to the combustion chamber. Its name, PCV means Positive Crankcase Ventilation and is one of the oldest and most used emission control devices.he PCV valve is a control device which sends partially burned gases that come from the engine's crankcase to the combustion chamber. Its name, PCV means Positive Crankcase Ventilation and is one of the oldest and most used emission control devices.
Definition. PCV stands for positive crankcase ventilation. The PCV valve is a spring-loaded, one-way valve that ensures continual evacuation of gases from inside the engine.he PCV valve sends partially burned gases from the engine's crankcase (where the power generated from the engine is converted into the energy that drives your car) back into the combustion chamber (where fuel and air are mixed and exploded under pressure), where the gases are re-burned.