Dirty air filter symptoms: How to tell if it’s time for a replacement
Air filters keep dirt and debris out of your engine. Eventually, the residue builds up and prevents proper airflow. Then the air filter needs to be replaced.
What are the symptoms of a dirty air filter in a car? There can be many ways this shows up, such as worse fuel economy, signs of a struggling engine, or a check engine light.
After reading this, you’ll know what to look for and when to replace your vehicle’s air filter.
Symptoms of a dirty air filter
The air filter’s purpose is to prevent harmful items from getting sucked into the engine. Without this filter or when it is contaminated, your engine could suffer severe damage.
What are the symptoms of a dirty air filter in a car? They include things like:
·Dirty air filter
·Poor fuel economy
·Slow acceleration
·Gasoline smell
·Increased engine strain
·Unusual engine noises
·Engine misfires
·Black exhaust smoke
·Check engine light
If you notice any of these issues, your air filter might be dirty and need replacing. But that’s not the only thing that can cause these problems.
Many of these could indicate other serious problems related to spark plugs or glow plugs, fuel systems, and sensors. It’s crucial to have a professional diagnose the problem when you notice these things happening, especially for diesel engines.
Diesel engines have a different air-fuel injection system. While a gasoline engine combines the air with fuel before it is compressed, the air in diesel engines is compressed before fuel is injected, making the role of the air filter even more important.
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