Tips to Maintain the Pollution Control System of Your Volkswagen
Pollution is one of the biggest problems challenging our planet and car's being one of the major contributors to air pollution has some robust technological feature to reduce their emissions. The internal combustion engine in a car produces toxic gases and as per international obligations, the emission level can't exceed beyond a limit. Due to this vehicle manufacturers are increasingly giving stress to the emission control systems. Among the various car brands that one sees on the road, Volkswagen is one of the most popular brands that people love to own.
However, recently Volkswagen has been in the eye of the storm due to its lax pollution control system. The worrying factor is that it is often found that people are not aware of the various components of the emission control system of their Volkswagen. This leads to a situation where if one of these component malfunctions, then they will not be able to determine the failure. This is very dangerous as it can also lead to serious issues in other parts of the Volkswagen.
The evaporative controls are very important for the proper functioning of the emission control system. Gasoline evaporates very fast that is, almost 20% of all hydrocarbon emissions from Volkswagen is from the gas tank. These evaporative emissions are directly released into the atmosphere. In the past, certain rules were made that prohibited releasing of gas tank fumes into the atmosphere. This is where the role of the evaporative control system comes into play.
They are designed to eliminate the source of the pollution. Their role is to trap and store evaporative emissions released from the gas tank and carburetor. A charcoal canister in the evaporative control system is used to trap the fuel vapors. Moreover, a purge valve which is operated by the engine vacuum is used to control the vapor flow into the engine. However, you need to watch over the purge valve as it can go bad at any moment and the engine will draw direct fuel into the intake system.
PCV valve also known as positive crankcase ventilation is responsible for taking the vapors produced in the crankcase at the time of the combustion and channels them into the air & fuel intake system to be burned during the combustion process. These vapors have the potential to dilute the air and fuel mixture which can affect the performance of the engine & need constant monitoring. This is done by the PCV valve. The valve allows a very little amount of vapors into the intake system at the idle condition as the air and fuel mixture is in a critical state.
However, during high speeds, more amounts of vapors is allowed into the intake system because the mixture is safe & the pressure in the engine is greater. If the valve gets clogged, then vapors will go back up into the air filter housing or in worse cases, the excess pressure will blow the seals, ultimately leading to engine oil leaks in your Volkswagen and this affects the PCV valve functioning. Thus, rendering it incapable to process the vapors and ultimately giving rise to pollution from Volkswagen.
The internal combustion engines are not that much efficient and this leads to an increase in the amount of unburned fuel in the exhaust and gives rise to hydrocarbon emissions from your Volkswagen. The process of combustion is sustained by fuel, oxygen and heat. Inside the exhaust manifold, there is sufficient heat to carry out combustion. When oxygen is introduced, then any unburnt fuel gets ignited and reduces excessive hydrocarbon emissions. However, this will not produce any power and is carried out after the completion of the combustion process. Air injection is a type of pollution control system which doesn't have any negative effect on the engine's performance. However, you need to inspect the air pump drive belt from time-to-time in your Volkswagen.
The above-mentioned components of your Volkswagen car play a very critical role in containing the pollution coming from the vehicle. The best way to maintain those systems is to go for preventive maintenance as it helps in dealing with any issues from the beginning before it gets worse.
