How to Replace the Fuel Cap on a 2017 Toyota Corolla
Step-by-step instructions with safety tips, parts, and quick DIY repair guidance for 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
How to Replace the Fuel Cap on a 2017 Toyota Corolla
Step-by-step instructions with safety tips, parts, and quick DIY repair guidance for 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
🔧 Fuel Cap - Replacement
Replacing the fuel cap is a quick fix if the old one is cracked, missing, or not sealing properly. A bad cap can trigger a check engine light and let fuel vapors escape. This job is simple and usually takes only a few minutes.
Difficulty Level: Beginner | Estimated Time: 0.1-0.2 hours
⚠️ Safety & Precautions
- Work with the engine off and no smoking or open flames nearby.
- Do not overfill the fuel tank. Stop at the first automatic pump click.
- Make sure the replacement cap is fully seated and tightened until it clicks.
- No battery disconnect is required.
🔧 Required Tools
You'll need the following tools for this repair:
- None
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Fuel cap - Qty: 1
📋 Before You Begin
- Park on level ground and turn the engine off.
- Open the fuel door.
- If the old cap is hanging by a tether, leave the tether attached unless it is damaged.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Remove the old fuel cap
- Turn the fuel cap counterclockwise until it comes free.
- If the cap is stuck, twist gently. Do not use pliers.
Step 2: Inspect the filler neck
- Look at the fuel filler neck seal surface for dirt, cracks, or damage.
- Wipe away light dirt with a clean cloth if needed.
Step 3: Install the new fuel cap
- Thread the new cap on by hand.
- Turn it clockwise until it clicks several times.
- Torque spec: Not applicable. Tighten by hand until the cap clicks.
Step 4: Verify the seal
- Make sure the cap sits flush and the fuel door closes normally.
- If the check engine light was on for the fuel cap, it may take a few drive cycles to clear.
✅ After Repair
- Check that the cap is tight after the first drive.
- Watch for a check engine light related to evaporative emissions.
- If the light stays on, a scan tool may be needed to clear the code.
💰 DIY vs Shop Cost
Shop Cost: $40-$120 (parts + labor)
DIY Cost: $15-$35 (parts only)
You Save: $25-$85 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.
🎯 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.


















