What Does an Air Filter Housing Do in a Car?

Learn what an air filter housing does in your car and how to replace it. Find out why it's important for your vehicle's performance.

What Does an Air Filter Housing Do in a Car?

Filters are designed to trap potentially harmful debris before it enters an area where it shouldn't, such as the combustion chamber, fuel injectors, vehicle cabin, and more. An air filter is the part of the engine that is like a safety guard for your car's engine. It keeps dirt and dust out and lets in air. In addition to keeping pollution out, it can allow unrestricted air intake. Due to pollution, air does not enter properly and the engine check light comes on.

To open the air cleaner housing, simply remove the fasteners, remove the top of the air cleaner housing, and pull out the air cleaner. Remove dirt or debris from the housing by wiping it with a cloth. Oil isn't something you should normally find in your air filter. A car's air filter is supposed to trap contaminants and debris, while oil must circulate around the engine to lubricate moving parts, working independently and without overlapping. When the engine air filter becomes dirty, it prevents the right amount of clean air from reaching the engine, which can cause a number of problems for your vehicle.

In case the air cleaner housing is loose, dirt and dust will enter the car and damage the turbocharger. When the air filter becomes clogged with debris, it can cause fuel efficiency and engine power output to decrease. Before replacing your car's air filter with a new one, the inside of the filter housing should be thoroughly cleaned to remove any debris. If you're performing routine service on your car, truck, or SUV and you discover engine oil inside the air cleaner or air intake housing, it's probably a good idea to have a professional mechanic come to your location to complete an on-site inspection. Air filters clean the air drawn into the car's engine and mixes with the fuel to form the correct compression ratio. Drilling holes in the air box will give you a louder intake sound and more airflow without risking the air filter slipping out of place or absorbing hot air.

Typically, filter manufacturers recommend replacing your car's engine air filter at least once a year. For every gallon of gasoline consumed by the car, you must be able to consume 1000 gallons of air to process fuel efficiently. Once you have located the box containing the filter, it is advisable to clean the outside of the box with a brush or compressed air, to prevent dirt from the engine from transferring to the interior when changing the air filter of your car. Since it is essential to prevent impurities from entering the combustion chamber of the engine, there is always an intake air filter located just before the intake manifold. A second potential source of engine oil leaks in the air cleaner housing is due to worn piston rings. If you notice symptoms of a loose air cleaner housing or do not fix them yourself, go to the mechanics for repair and eliminate the problem.

When you park your car and you hear a strange noise such as a hiccup, it could be due to a bad air filter. Now you know how an air filter works in cars and how to replace it by following these instructions.

Penelope Ruelle
Penelope Ruelle

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