🔧 Accord - Fuel Cap Replacement

Replacing the fuel cap is a quick job: you remove the old cap and install a new, correct-style cap that seals the tank properly. A good seal helps prevent fuel vapors from escaping and can stop an EVAP-related check engine light caused by a weak or damaged cap seal.

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

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⚠️ Safety & Precautions

• ⚠️ Work with the engine OFF and away from sparks, cigarettes, or open flames.
• ⚠️ Do not top-off fuel after the pump clicks off; it can damage the EVAP system.
• ⚠️ If you smell strong fuel fumes after replacement, stop and re-check cap seating.
• ⚠️ 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

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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, turn the engine off, and remove the key.
• Open the fuel door on the left rear quarter panel.
• Use a flashlight to visually check the filler neck area for dirt or damage.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the old fuel cap

• Put on nitrile gloves.
• Turn the cap counterclockwise until it releases, then remove it by hand.
• If your cap has a tether (the small strap that keeps it attached to the car), let it hang.

Step 2: Clean and inspect the sealing surface

• Use a clean shop towel to wipe the filler neck sealing surface (the flat area where the cap’s rubber seal sits).
• Use a flashlight to check for cracks, chips, rust, or heavy dirt.
• Clean sealing surface prevents repeat EVAP leaks.

Step 3: Install the new fuel cap

• Align the new cap and thread it on by hand (clockwise).
• Tighten until you hear/feel at least 3 clicks (that click is the cap’s built-in torque limiter).
• Gently tug the cap to confirm it’s seated and not cross-threaded.

Step 4: Close the fuel door and verify

• Close the fuel door securely.
• If you previously had a check engine light due to a loose cap, it may take a few normal drive cycles to turn off on its own.

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✅ After Repair

• Start your Accord and confirm there’s no fuel smell near the left rear of the car.
• After your next fill-up, confirm the cap still clicks and the fuel door closes normally.
• If the check engine light remains on after several trips, 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 0.1-0.2 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.