🔧 Cadenza - Fuel Cap Replacement

The fuel cap seals your fuel tank so vapors don’t escape and dirt/water can’t get in. Replacing it is quick and helps prevent fuel smell and “Check Engine” lights caused by EVAP leaks.

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

---

⚠️ Safety & Precautions

• ⛽ Work in a well-ventilated area away from flames, smoking, or sparks.
• Let the engine cool if you just drove; fuel vapors ignite easily.
• Do not top off the tank after the pump clicks off; it can damage the EVAP system.
• Battery disconnect is not required for this repair.

---

🔧 Required Tools

You'll need the following tools for this repair:

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

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel cap - Qty: 1

---

📋 Before You Begin

• Park on level ground and shift to Park.
• Turn the engine off and remove the key/fob from the cabin area.
• Use a clean shop rag to wipe dust around the fuel door before opening. Keeps dirt out of the filler neck.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the fuel door

• Use your hand to open the fuel door on the driver-side rear quarter.
• Use a flashlight to inspect the area for dirt or debris.

Step 2: Remove the old fuel cap

• Use your hand (with nitrile gloves) to turn the cap counterclockwise until it releases.
• If the cap is tethered, let it hang; don’t twist the tether.

Step 3: Inspect and clean the sealing surfaces

• Use a clean shop rag to wipe the filler neck sealing surface (the flat ring where the cap seals).
• Check for cracked rubber, damaged threads, or dirt buildup on the old cap.

Step 4: Install the new fuel cap

• Thread the new cap on by hand, turning clockwise.
• Tighten until it clicks several times (typically 1–3 clicks). Clicks mean it’s properly tightened.

Step 5: Close the fuel door

• Press the fuel door closed until it’s flush and fully latched.

---

✅ 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 normal drive cycles to turn off on its own.
• If the light stays on, you may need the code cleared with a scan tool (an EVAP leak can also be caused by hoses/valves, not just the cap).

---

💰 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.

---

🎯 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.