Tag Archives: air filter

9 Signs Your Car’s Air Filter Needs Changing

air filter in a car

Your car needs to combust petrol. And as every GCSE science student will tell you, this needs three things. Fuel, an ignition source and air.

In engines, this is supplied by the petrol, diesel or other fuel source, the spark plugs, and the air is drawn through the air filter, ensuring that dirt and muck doesn’t enter into the piston chambers. Of course – all that filth ends up caught in the air filter, reducing its effectiveness.

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How to check and replace your car’s air filter

inspecting an air filter

Even at low speeds, your engine sucks in a huge amount of air necessary for the process of internal combustion that drives the car. This air has to be clean and free from particles such as dust and dirt, or these could clog up the engine over time causing it to lose efficiency or even break down. As a result most engines use special air filters to clean the air that they take in, trapping all the dirt and dust that could cause damage. This part has a limited lifespan before it becomes completely clogged, impeding the flow of air to the engine, and needs to be changed.

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