🔧 Legacy - Engine Air Filter Replacement

Your Legacy’s engine air filter cleans the air going into the engine. Replacing a dirty filter helps performance and fuel economy, and it’s one of the easiest maintenance jobs you can do.

Difficulty Level: Beginner | Estimated Time: 0.2-0.5 hours

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⚠️ Safety & Precautions

• ⚠️ Work on a cool engine so you don’t burn your hands.
• ⚠️ Keep fingers/tools clear of belts and fans.
• ⚠️ Do not start the engine with the air box open.
• ⚠️ Battery disconnect is not required for this job.

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🔧 Required Tools

You'll need the following tools for this repair:

• Clean shop rag
• Flashlight
• Flat-blade screwdriver
• Nitrile gloves
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Engine air filter - Qty: 1

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📋 Before You Begin

• Park on level ground and turn the engine off.
• Open the hood and let the engine cool for 10-15 minutes.
• Have a clean rag ready so no dirt falls into the air box.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Find the air filter housing

• Open the hood and use a flashlight to locate the black plastic air box on the passenger-side front area of the engine bay.
• The air box is connected to a large intake tube leading toward the engine.

Step 2: Unclip the air box cover

• Use your hands to release the metal retaining clips around the air box lid.
• If a clip is stubborn, gently help it with a flat-blade screwdriver.
• Don’t pry hard; clips bend easily.

Step 3: Open the air box

• Lift the top cover of the air box upward.
• If the intake tube limits movement, lift the cover just enough to remove the filter without forcing anything.

Step 4: Remove the old filter

• Pull the filter straight out with nitrile gloves on.
• Use a flashlight to note how it sits (the rubber seal faces outward and must seat evenly all the way around).

Step 5: Clean the air box (lightly)

• Use a clean shop rag to wipe out loose dust inside the lower air box.
• Do not let dirt fall into the intake opening.
• Do not use compressed air here.

Step 6: Install the new filter

• Place the new filter into the lower air box the same way the old one came out.
• Make sure the filter’s rubber edge sits flat and fully seated all the way around.

Step 7: Close and latch the air box

• Lower the air box lid back into place.
• Reinstall the retaining clips by hand until each one snaps fully closed.
• If your air box uses a clamp in your build, snug it carefully with a flat-blade screwdriver (do not overtighten).

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✅ After Repair

• Visually confirm all clips are fully latched and the lid seam is even.
• Start the engine and let it idle for 20-30 seconds; listen for any hissing (a hissing sound can mean the air box isn’t sealed).
• Take a short drive and make sure there’s no check engine light.

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💰 DIY vs Shop Cost

Shop Cost: $50-$120 (parts + labor)

DIY Cost: $15-$35 (parts only)

You Save: $35-$85 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.2-0.5 hours.

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🎯 Ready to get started?

HowToo makes it easy: same-day/2-day shipping on every part, plus all the tools and specialty tools you need! Check out the parts and tools sections below to add everything to your cart.