As a general definition we can tell that the EGR valve is part of the exhaust emission control system of the car. This car piece is very intricate and specific but it has a very important function which makes the car engine work with a much higher efficiency as well as helps avoiding that car gases affect the environment.

EGR stands for Exhaust Gas Recirculation and this name directly refers to its function. This valve sends exhaust gases back into the combustion chamber by redistributing them through the intake manifold air stream. This way, this valve mainly works by taking exhaust gases to the best place.

Through this valve, the car engine's combustion chamber readmits exhaust steam helping reducing peak combustion chambers and engine emissions. This way, the EGR valve has the Oxides of Nitrogen reduction as its main purpose. It avoids the way in which gases generated from the car engine could damage the environment once they enter in contact with the atmosphere. This way, the EGR valve is a help to the engine's economy as well as it helps it working more efficiently and prevents gases from damaging the environment.















Besides the way in which it helps the car engine to work more efficiently, the EGR also contributes to the environment since it prevents car gases from causing smog. This way, it is important to have this car piece working properly, but in case it is broken you should remember that this valve usually is an electronic car part and therefore if it is broken you should not try to fix it yourself unless you are sure of what you are doing.
 
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Learn what the EGR valve is
What does the PCV valve do?
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. Although its name might sound very complicated, it is a very simple device and its function can be easily understood.

Due to its tasks, the PCV valve is not only very useful but also implies important benefits. It completely eliminates crankcase emissions efficiently, avoiding that it becomes an air pollution factor. Besides, it also keeps the system free of moisture due to the constant air circulation that it implies.

Besides, the PCV valve also helps keeping the oil and the engine in proper shape extending their life as well. Also, its mechanism is very important for preventing the appearance of engine corrosion as well as it helps improving fuel economy. This way, the PCV valve is very important for different aspects and helps car owners maintaining their car’s engines in shape as well as providing them with a good administration of the fuel economy

The PCV valve routes crankcase partially burned gases back to the engine. Once these gases go back to the engine, they are re-burned, allowing this way a better use and administration of fuel. The cylinders are an important part in the process since they are who re-burn the gases rerouted from the PVC valve and have a central role in it.

Crankcase emissions can be a great source of air pollution, and therefore the PCV valve is very useful and important not only for the car functioning but also for the environment and health as well. Besides, this valve requires little maintenance and must be replaced at about 40.000 miles. This way, the PCV valve is an easy to maintain piece which implies an important amount of benefits that affect not only the car and its owner but also those who surround him and the environment in general due to the way in which it prevents gases from becoming air pollution factors.
About the author
Jakob Jelling is the founder of
http://www.autorized.com. Please visit his website to learn about auto maintenance, auto insurance, auto safety and much more!
 
 
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It is very important to maintain the EGR valve clean since it can easily become obtruded by dirt due to the way in which exhaust gases are constantly passing by it. This way, one of this car piece's main weak points is the appearance of dirt impeding the correct pass of gases through it. You should make sure the valve is always clean and free of dirt or any other element which could be an obstacle for its proper functioning.
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