🔧 Cruze - Fuel Cap Replacement

Replacing the fuel cap on your Cruze is a quick job that helps prevent fuel vapors from escaping and can stop an EVAP-related check engine light caused by a loose or failed cap seal. You’ll remove the old cap, verify the sealing surface, and install the new cap correctly.

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

---

⚠️ Safety & Precautions

• ⚠️ Work in a well-ventilated area away from flames, cigarettes, or sparks.
• ⚠️ Turn the engine OFF before opening the fuel door.
• ⚠️ If you smell strong fuel odor, stop and inspect for leaks before driving.
• ⚠️ No battery disconnect is required for this repair.

---

🔧 Required Tools

You'll need the following tools for this repair:

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

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

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

---

📋 Before You Begin

• Park on level ground and set the parking brake.
• Shut the engine off and remove the key.
• Have a clean shop towel ready to wipe the filler-neck sealing surface.
• If your cap is tethered, don’t cut it.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the fuel door

• Open the fuel door on the left rear quarter panel.
• Use a flashlight to look at the cap and the area around it.

Step 2: Remove the old fuel cap

• Put on nitrile gloves and safety glasses.
• Turn the cap counterclockwise until it releases, then pull it straight off.
• If there’s a tether (a small strap that keeps the cap attached), let it hang without twisting it.

Step 3: Inspect and clean the sealing surface

• Use a clean shop towel to wipe the round sealing lip on the fuel filler neck.
• Check the old cap’s rubber seal for cracks, flattening, or dirt (this is often why it leaks vapor).

Step 4: Install the new fuel cap

• Align the new cap on the filler neck and push it on squarely.
• Turn the cap clockwise until it is fully tight. If your replacement is the “click” type, tighten until you feel/hear the clicks, then stop.
• If the cap uses a tether, make sure the tether is not twisted and isn’t pinched by the fuel door.

Step 5: Close the fuel door

• Close the fuel door firmly.
• Use the flashlight to confirm the cap sits flat and centered.

---

✅ After Repair

• Start the engine and check that no fuel smell is present near the fuel door area.
• If your check engine light was on for an EVAP leak from a loose/bad cap, it may take a few normal drive cycles to turn off on its own after the cap is sealed correctly.
• If the light stays on, you may need a code scan and further EVAP leak diagnosis.

---

💰 DIY vs Shop Cost

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

DIY Cost: $10-$35 (parts only)

You Save: $30-$85 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.

---

🎯 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.