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.
Not every vehicle has a PCV (positive crankcase ventilation) valve. If yours has one, and your engine has been idling roughly or a malfunction indicator light goes on, check the PCV valve to make sure that it isnât clogged with sludge from the contaminants in the exhaust fumes or stuck in the wide-open position.