Free guides / Automotive

How to Replace an Engine Air Filter

A clogged engine air filter can cost you power and fuel economy. Most cars need a new one every 15,000–30,000 miles, more often on dusty roads.

DifficultyEasy
Time10–15 min
DIY cost$12–$30
Pro would charge$50–$90

Safety first

Tools

  • Screwdriver or socket, only if the housing uses screws
  • Shop vac or rag

Parts

  • Engine air filter that matches your year, make, model and engine

Step by step

  1. Find the housing

    It's the black plastic box connected to the large intake tube, usually near the front of the engine.

  2. Open it

    Release the metal clips or remove the screws and lift the cover.

  3. Swap the filter

    Labeled diagram: Swap the filter (How to Replace an Engine Air Filter)
    Labeled diagram: Swap the filter. Tap to enlarge.

    Note which way the old filter sits, lift it out, wipe out the housing and drop in the new one the same way.

  4. Close and check

    Seat the cover evenly, fasten all clips or screws, and make sure the intake tube is still tight.

When to call a pro

Most people never need a pro for this, but have a shop look if you find oil in the air box.

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