What causes a clogged air filter?
Wednesday 28th August 2024
The engine air filter is located under the bonnet, inside the engine bay. It ensures the engine's performance is not affected by contaminants. A dirty or clogged filter can cause car-breaking issues if left unchecked.
Reduced fuel economy
When filling your car with petrol or diesel, do you notice that the fuel doesn’t last? The car’s air filter could be dirty. A clogged air filter reduces airflow to the engine, leading to reduced fuel economy. If there is a considerable reduction in fuel economy, you should replace your air filter.
You hear strange engine noises
Dirt and debris can build up on your car’s air filter, creating a vacuum inside the engine. When you start the car, you may hear strange noises from the engine as it tries to get more air to circulate into the chamber for combustion. It makes it harder for the air to reach the petrol or diesel, leading to the engine flooding.
A misfiring engine
Does your car struggle to start when you turn it on? You may have a misfiring engine. A clogged air filter could be why your engine is misfiring, leading to:
- Loss of acceleration.
- Poor performance.
If your engine air filter is dirty, it should be replaced as soon as possible. Book your next fuel-saver service with Formula One Autocentres. Our engine technician can check your air filter to identify if it is causing your engine to misfire.
The engine light comes on
A common scenario with a clogged air filter is when the engine light comes on the dashboard, signalling an engine fault. If the engine light stays on the dash, it could signal that the filter needs cleaning or replacing.
Reduction in horsepower
Do you notice your car struggles to accelerate when you press your foot on the accelerator pedal? You may have reduced horsepower from the engine since it struggles to channel air into the combustion chamber. If you are pressing the gas pedal harder than usual, it could signal a clogged air filter.
What should a healthy car air filter look like?
A healthy car air filter should be white or off-white and be free from contaminants. Over time, your filter may become dirty, turning the white-coloured air filter grey. If your air filter is dirty, you should get the filter replaced with a new one.
How often should my car’s air filter be replaced?
As a rule of thumb, we recommend replacing your air filter every 15,000 to 30,000 miles. Yet in extreme environments, such as areas with high air pollution or challenging road conditions, you may need to replace your air filter more frequently. For any questions about when to replace your air filter, contact our friendly and helpful team based across our nationwide branches.
Understanding the signs and symptoms of a clogged air filter ensures your vehicle runs efficiently. Discover what is included with a car service with our in-depth guide. Keep your vehicle running smoothly by booking your next car service at your local Formula One Autocentres branch today. Our specialist engine technician will replace your existing clogged air filter with a new one.
