🔧 C-HR - Fuel Cap Replacement

Replacing the fuel cap on your C-HR is a quick job: you remove the old cap and install a new one that seals correctly. A good seal is important because a loose or damaged cap can cause fuel vapor leaks and may trigger a check-engine light (EVAP system).

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

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⚠️ Safety & Precautions

• ⚠️ Work in a well-ventilated area; fuel vapors are flammable.
• ⚠️ Turn the engine OFF and keep sparks/flames away from the fuel door.
• ⚠️ Don’t top off the tank after the pump clicks off.
• ⚠️ Battery disconnect is NOT required.

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🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses
• Clean shop towel

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel filler cap (sealed, correct fit for C-HR) - Qty: 1
• Fuel cap tether/retainer (if broken) - Qty: 1

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📋 Before You Begin

• Park on level ground and switch the ignition OFF.
• Make sure you’re away from open flames, cigarettes, or hot work lights.
• Wipe dirt from around the fuel door area using a clean shop towel so debris doesn’t fall into the filler neck.

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🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the fuel door

• Open the fuel door on your C-HR.
• Use nitrile gloves and safety glasses to protect your hands/eyes from fuel residue.

Step 2: Remove the old fuel cap

• Turn the cap counterclockwise by hand until it comes off.
• If it’s tethered (attached by a small strap), let it hang from the tether.
• Use a clean shop towel to wipe the cap seating surface (the flat sealing area) if it’s dusty.

Step 3: Inspect the sealing area

• Look at the rubber seal on the old cap and the rim of the filler neck.
• If you see cracks, flattening, or missing rubber, replacement is the right call.
• Clean and dry helps the seal.

Step 4: Install the new fuel cap

• Thread the new cap on by hand clockwise.
• Tighten until you hear/feel it click (usually 1–3 clicks). This “click” means the cap is tight enough to seal.
• Torque spec: Tighten to the cap’s click-stop (no wrench tightening).

Step 5: Close the fuel door

• Close the fuel door securely.
• Wipe any fuel residue with the clean shop towel.

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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 from a loose cap, it may take a few drive cycles to clear on its own.
• If the light stays on after several normal trips, the issue may be elsewhere in the EVAP system and should be scanned for codes.

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💰 DIY vs Shop Cost

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

DIY Cost: $15-$40 (parts only)

You Save: $25-$80 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.