🔧 Legacy - Fuel Cap Replacement

Replacing the fuel cap on your Legacy is a quick job that helps keep the EVAP system sealed. A worn or missing cap can cause fuel odors and can trigger a check-engine light (often “EVAP leak” related).

Difficulty Level: Beginner | Estimated Time: 0.1-0.2 hours

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⚠️ Safety & Precautions

• ⚠️ Work away from flames, cigarettes, or sparks.
• ⚠️ Turn the engine off before opening the fuel door.
• ⚠️ If you smell strong fuel, stop and check for leaks before driving.
• ⚠️ Battery disconnect is not required.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Clean shop towel
• Flashlight
• Safety glasses

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel cap - Qty: 1

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📋 Before You Begin

• Park on level ground and shift to Park.
• Turn the engine off and remove the key.
• Have a clean shop towel ready to wipe the filler neck sealing surface.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the fuel door

• Use your fuel door release lever/button (driver area) to pop the fuel door open.
• Use a flashlight if it’s dark so you can see the sealing area clearly.

Step 2: Remove the old fuel cap

• Put on nitrile gloves.
• Turn the cap counterclockwise by hand until it comes off.
• If your cap is tethered (a small strap that keeps it from getting lost), let it hang.

Step 3: Inspect and clean the sealing surface

• Use a clean shop towel to wipe the filler neck lip (the round metal/plastic surface the cap seals against).
• Check for dirt, sand, or damage. Clean sealing surface prevents EVAP leaks.

Step 4: Install the new fuel cap

• Place the new cap onto the filler neck and turn it clockwise by hand.
• Tighten until you hear/feel it click. Tighten until at least 1 click.
• If the new cap has a tether, attach it the same way as the old one.

Step 5: Close the fuel door

• Push the fuel door closed until it latches.
• Use a shop towel to wipe any fingerprints or residue if needed.

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✅ After Repair

• Start the engine and confirm there’s no fuel smell around the fuel door area.
• If you had a check-engine light for a loose/missing cap, it may take a few normal drive cycles to turn off on its own.
• If the light stays on after a few days of driving, the issue may be another EVAP leak (not just the cap).

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💰 DIY vs Shop Cost

Shop Cost: $40-$120 (parts + labor)

DIY Cost: $15-$45 (parts only)

You Save: $25-$75 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.1-0.3 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.