🔧 Accord - Fuel Cap Replacement

Replacing the fuel cap is a quick job that helps prevent fuel vapor leaks and can stop an EVAP-related check engine light caused by a loose or failed cap. You’ll remove the old cap, install the correct replacement, and confirm it “clicks” tight.

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

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⚠️ Safety & Precautions

• ⚠️ Work in a well-ventilated area, away from sparks/flames.
• ⚠️ Turn the engine OFF before opening the fuel door.
• ⚠️ Don’t top off the tank after the pump clicks off.
• ⚠️ No battery disconnect is required.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Clean shop towel
• Flashlight

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel cap (OEM-style, tethered) - Qty: 1

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📋 Before You Begin

• Park on level ground and shut the engine off.
• Have a clean shop towel ready to wipe the filler neck (the metal ring where the cap seals).

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the fuel door

• Press the fuel door to open it.
• Use a flashlight if it’s dark to see the cap and sealing area.

Step 2: Remove the old fuel cap

• Put on nitrile gloves.
• Turn the cap counterclockwise until it releases, then remove it.
• If the cap has a tether (a small strap), unhook it if needed so you can compare the old and new caps.

Step 3: Clean and inspect the sealing surface

• Use a clean shop towel to wipe the filler neck sealing surface.
• Check for dirt, rust flakes, or damage where the cap’s rubber seal sits. Clean sealing surface prevents small leaks.

Step 4: Install the new fuel cap

• Hook up the tether (if equipped) so the cap doesn’t get lost.
• Thread the new cap on by hand clockwise until it seats.
• Keep turning until you hear/feel at least one “click.” This is the built-in limiter that tells you it’s tight enough.

Step 5: Close the fuel door

• Close the fuel door and confirm it latches fully.

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✅ After Repair

• Start the engine and make sure there’s no fuel smell around the fuel door.
• If you had a check engine light for an EVAP leak, it may take a few normal drives to turn off on its own after installing a good cap.
• If the light stays on after several drives, the issue may be elsewhere in the EVAP system (not just the cap).

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💰 DIY vs Shop Cost

Shop Cost: $30-$90 (parts + labor)

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

You Save: $15-$45 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.1-0.2 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.