🔧 Outback - Fuel Cap Replacement

Replacing the fuel cap on your Outback is a very simple repair. A worn, loose, or missing cap can cause fuel vapor leaks and may trigger a check engine light for an evaporative emissions leak.

Difficulty Level: Beginner | Estimated Time: 5-10 minutes

---

⚠️ Safety & Precautions

• ⚠️ Turn the engine off before opening the fuel door.
• ⚠️ Do not smoke or work near flames, sparks, or hot tools.
• ⚠️ Fuel vapors are flammable, so work in a well-ventilated outdoor area.
• ⚠️ No battery disconnect is required for this repair.

---

🔧 Required Tools

You'll need the following tools for this repair:

• Nitrile gloves
• Safety glasses

---

🔩 Required Parts

HowToo sells all the parts you need for this repair:

• Fuel tank cap - Qty: 1

---

📋 Before You Begin

• Park your Outback on level ground and shift the transmission to Park.
• Set the parking brake.
• Turn the ignition off and remove the key/fob from the vehicle area.
• Make sure you have the correct replacement fuel cap for your Outback.
• If the check engine light is on because of a loose fuel cap, it may take several drive cycles to turn off after replacement.

---

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the Fuel Door

• Put on nitrile gloves and safety glasses.
• Go to the passenger-side rear quarter panel of your Outback.
• Press the fuel door inward and release it so it pops open.
• Press near the rear edge.

Step 2: Remove the Old Fuel Cap

• Use your hand to turn the old fuel cap counterclockwise.
• Keep turning until the cap comes free from the filler neck.
• The filler neck is the metal tube where fuel enters the tank.
• Let the cap hang by its tether if it is still attached.

Step 3: Detach the Fuel Cap Tether

• Use your hand to slide the old cap tether off its retaining tab inside the fuel door area.
• The tether is the small plastic strap that keeps the cap from falling away.
• If the tether is stiff, gently wiggle it side to side by hand until it releases.
• Do not pry with metal tools near the fuel filler opening.

Step 4: Install the New Fuel Cap Tether

• Use your hand to slide the new fuel cap tether onto the same retaining tab.
• Make sure the tether sits fully on the tab and does not block the fuel door from closing.
• Match the old tether routing.

Step 5: Install the New Fuel Cap

• Place the new fuel cap squarely onto the filler neck by hand.
• Turn the cap clockwise until it clicks.
• Continue turning until you hear at least one firm click.
• No torque wrench is used for this cap; tighten by hand only until it clicks.

Step 6: Close the Fuel Door

• Use your hand to close the fuel door until it sits flush with the body.
• Confirm the tether is not pinched in the fuel door.

---

✅ After Repair

• Start your Outback and confirm there is no fuel smell around the fuel door area.
• If the check engine light was caused by the old cap, drive normally for a few days.
• The evaporative emissions system usually needs several self-checks before the light turns off.
• If the light stays on after several days, the vehicle may need a scan for stored EVAP trouble codes.

---

💰 DIY vs Shop Cost

Shop Cost: $45-$90 (parts + labor)

DIY Cost: $15-$35 (parts only)

You Save: $30-$55 by doing it yourself!

Shop labor rates vary but typically run $100-$150/hour. This repair takes a shop approximately 0.2-0.3 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.