🔧 Fuel Cap - Replacement

Replacing the fuel cap on your Prius V is a simple repair. A worn cap can trigger an EVAP leak code, check engine light, or fuel smell if the seal is damaged. This job is quick and does not require special programming.

Difficulty Level: Beginner | Estimated Time: 0.1-0.3 hours

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⚠️ Safety & Precautions

• Work with the vehicle off and parked on level ground.
• Do not smoke or work near open flames.
• Let the fuel area cool if the vehicle was recently driven.
• No battery disconnect is required for this repair.
• Keep dirt out of the filler neck.

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🔧 Required Tools

You'll need the following tools for this repair:

• Clean shop towel
• Safety glasses
• Nitrile gloves

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel cap - Qty: 1
• Fuel cap tether - Qty: 1

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📋 Before You Begin

• Park on level ground and set the parking brake.
• Turn the ignition off and remove the key or fob from the vehicle.
• Open the fuel door and inspect the filler neck for dirt or damage.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the old fuel cap

• Turn the fuel cap counterclockwise by hand until it releases.
• If the cap is stuck, use a clean shop towel for a better grip.
• Let it hang on the tether if it is still attached.

Step 2: Inspect the filler neck

• Use a flashlight if needed and look at the sealing surface in the filler neck.
• Wipe away any dirt with a clean shop towel.
• Do not scratch the sealing surface.

Step 3: Install the new fuel cap

• Align the new cap with the filler neck threads.
• Turn it clockwise by hand until it clicks or seats firmly.
• Make sure it is snug. A loose cap can cause an EVAP leak warning.

Step 4: Close the fuel door

• Close the fuel door securely.
• Check that the cap is fully seated and the door closes normally.

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✅ After Repair

• Start the vehicle and verify there is no fuel smell near the rear of the car.
• If a check engine light was on, it may clear after several drive cycles or may need a scan tool to erase the code.
• Recheck the cap after the next fill-up.

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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.