Why Replace Your Engine Air Filter?

Why Replace Your Engine Air Filter?

Knowing what an engine air filter is and when to replace it is important for all drivers. Not only will it help extend the health and longevity of your vehicle, but you can prevent more expensive repairs in the future.

That’s why Kennedy Transmission is breaking down what you need to know about your engine filter, and when it’s time to come see us in one of our North Dakota or Minnesota shops for a replacement.

What is an Engine Air Filter?

Although it’s a little filter, it’s doing a big job. Simply put, your engine’s air filter acts as a protector and barrier by preventing contaminants in the air from getting into your engine. While it’s protecting your engine from the outside, the filter also needs to make sure enough air is reaching your engine so it can properly run. Think of it this way: Just as our bodies need clean air to function properly and stay healthy, you vehicle’s engine needs clean air to operate efficiently.

And just like you have to get your oil changed periodically, your filters also need replacing. As the filter picks up debris over time, it can get clogged up and prevent air from getting into the engine. When that happens, your engine could also end up getting clogged.

Knowing When to Change Your Engine Air Filter

Several factors can determine when the right time to change your air filter is. Most auto specialists recommend changing it every 15,000 to 30,000 miles. However, if you live in heavily populated areas with pollution, or rural areas of North Dakota or Minnesota where you travel along dirt roads frequently, you’ll likely need to replace your filters much sooner. There are also other ways of knowing when your air filter is dirty and in need of replacement.

Signs of a dirty air filter include:

  • Poor gas mileage
  • Weird engine sounds
  • Service engine light comes on
  • Difficult to increase speed
  • Smell of gas during startup
  • Engine misfires
  • Black smoke or flames coming from exhaust


If you notice any of these issues, or aren’t even sure the last time your engine air filter was checked or replaced, give us a call. Replacing your engine air filter takes little time with little cost. We can even replace it while we’re doing your next oil change.

Taking action now can prevent a bigger problem from happening in the future – especially one that could end up costing you a lot more than the price of a new filter. Find a location near you, then give us a call to schedule an appointment today!

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