🔧 Soul - Fuel Cap Replacement

Replacing the fuel cap on your Soul is a quick job that helps prevent fuel vapor leaks and check-engine lights caused by an improper seal. You’ll remove the old cap, inspect the filler neck seal area, and install a new cap that clicks tight.

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

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⚠️ Safety & Precautions

• ⚠️ Work in a well-ventilated area away from sparks, flames, or smoking.
• ⚠️ Turn the engine OFF and keep the key out of the ignition while working.
• ⚠️ Avoid breathing fuel vapors and avoid getting fuel on your skin or paint.
• ⚠️ Battery disconnect is not required for this repair.

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🔧 Required Tools

You'll need the following tools for this repair:

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

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🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel cap (non-locking, tethered or compatible with tether) - Qty: 1

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📋 Before You Begin

• Park on level ground and shut the engine off.
• Let the area air out for a minute before opening the cap. Fuel vapors build quickly.
• Have a clean shop towel ready (a lint-free cloth used for wiping surfaces).

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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 Soul by pulling on the door edge.
• Use a flashlight if you need better visibility.

Step 2: Remove the old fuel cap

• Put on nitrile gloves and safety glasses.
• Turn the fuel cap counterclockwise until it releases, then remove it.
• If your cap has a tether (the small strap that keeps the cap attached), let it hang without twisting it.

Step 3: Inspect and clean the sealing surfaces

• Use the flashlight to look at the filler neck (the metal/plastic opening where the cap seals).
• Wipe the filler neck sealing lip with a clean shop towel.
• Check the old cap’s rubber seal (gasket) for cracks, flattening, or dirt. A bad seal can trigger EVAP faults.

Step 4: Install the new fuel cap

• Thread the new cap on by hand and turn it clockwise.
• Keep turning until you feel/hear at least one firm click (or it stops and feels fully seated, depending on cap design).
• Make sure the tether (if used) isn’t pinched and the cap sits straight.

Step 5: Close up

• Close the fuel door securely.
• Use the clean shop towel to wipe any fingerprints or fuel residue.

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✅ After Repair

• Start the engine and verify there’s no fuel smell around the fuel door area.
• If you were replacing the cap due to a check-engine light, it may take a few normal drives for the system to re-test and the light to turn off on its own.
• If the light stays on, the issue may be another EVAP leak (hose, purge valve, canister), not 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 0.2-0.5 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.