Your vehicle’s air filter is responsible for keeping dust, dirt, and other debris from the road out of your engine. Clean air helps the engine run smoothly and gives your car full power. Like all parts, though, air filters can get dirty, worn, or damaged over time. When your engine’s air filter has reached the end of its life span, you’ll want to replace it quickly so you can get your vehicle back to peak performance. Keep an eye out for these telltale signs it’s time to replace your car’s air filter.

Strange Sounds or a Check Engine Light

A worn-out air filter can cause plenty of problems in your engine. If your check engine light comes on and you’re not sure why, take your vehicle to the mechanic or run a diagnostic test to see if it’s the air filter. Strange engine sounds can also indicate a problem. Coughing, sputtering, and excessive vibrations can all mean that your engine isn’t getting enough air to run properly.

Less Power or Fuel Efficiency

If your engine needs clean air to run smoothly, then it makes sense that a dirty filter will result in less horsepower or fuel efficiency. Cars with a clean air filter can accelerate faster and burn fuel more efficiently. Check your air filter if you notice you’re getting fewer miles to the gallon. Similarly, if your car jerks or stutters when you try to accelerate, it could mean a dirty or worn filter is preventing your engine from running smoothly.

The Air Filter Is Dirty

One of the most obvious signs it’s time to replace your car’s air filter is if the filter itself is dirty. If you think something is wrong, take out the filter and perform a visual inspection. Air filters are usually white or off-white when you install them. If your filter is dark with debris and grime, it’s probably time to replace it.

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