How to Replace the Fuel Cap on a 2014-2017 Mitsubishi Outlander (Fix EVAP Leaks) (Engine: Inline 4 2.4L)
Step-by-step fuel cap install with safety tips, required tools/parts, and Check Engine light reset guidance
How to Replace the Fuel Cap on a 2014-2017 Mitsubishi Outlander (Fix EVAP Leaks) (Engine: Inline 4 2.4L)
Step-by-step fuel cap install with safety tips, required tools/parts, and Check Engine light reset guidance for 2014, 2015, 2016, 2017
🔧 Outlander - Fuel Cap Replacement
Replacing your fuel cap is a quick job that helps keep fuel vapors sealed and can prevent an EVAP leak (often a “Check Engine” light trigger). You’ll remove the old cap and install the correct replacement cap so it clicks and seals properly.
Difficulty Level: Beginner | Estimated Time: 0.1-0.3 hours
⚠️ Safety & Precautions
- ⛽ Work in a well-ventilated area; fuel vapors are flammable.
- 🚭 No smoking, flames, or sparks near the fuel door.
- 🧯 Let the engine cool if you just drove; avoid hot surfaces.
- 🔋 Battery disconnect is not required.
🔧 Required Tools
You'll need the following tools for this repair:
- Nitrile gloves
- Safety glasses
- Clean shop towel
🔩 Required Parts
HowToo sells all the parts you need for this repair:
- Fuel cap (OEM-style, sealing) - Qty: 1
- Fuel cap tether (if damaged, optional) - Qty: 1
📋 Before You Begin
- 🅿️ Park your Outlander on level ground and turn the ignition OFF.
- ⛽ If you just refueled, wait a minute so vapors settle.
- 🧼 Wipe dirt from around the filler neck with a clean shop towel so debris doesn’t fall into the opening.
🔨 Step-by-Step Instructions
Follow these steps in order:
Step 1: Open the fuel door
- Open the fuel door by hand.
- If your Outlander has a door release lever inside, use it to pop the door open.
Step 2: Remove the old fuel cap
- Put on nitrile gloves and safety glasses.
- Turn the cap counterclockwise until it releases, then pull it off.
- If it hisses, that’s usually normal pressure release.
Step 3: Transfer the tether (if equipped)
- Look for a tether (a small plastic strap) that keeps the cap from getting lost.
- If the new cap does not include a tether, move the old tether over.
- If a small clip holds the tether, gently pry it off by hand; use a clean shop towel for grip and to avoid scratching.
Step 4: Inspect and clean the sealing area
- Use a clean shop towel to wipe the filler neck sealing lip (the smooth ring where the cap seals).
- Remove dust/sand and check for cracks or heavy rust on the lip (either can cause leaks).
Step 5: Install the new fuel cap
- Place the new cap straight onto the filler neck.
- Turn it clockwise until you feel it seat, then keep turning until it clicks.
- Continue until you get at least 1-3 clicks (this indicates the cap is tight and sealed).
Step 6: Close the fuel door
- Close the fuel door firmly by hand until it latches.
- Wipe any fuel drips with a clean shop towel.
✅ After Repair
- 🔍 Make sure the cap is fully tight (clicked) and the fuel door sits flush.
- 🛠️ If you had a Check Engine light from a loose cap, it may take a few drive cycles to turn off on its own after the seal is restored.
- 👃 If you smell fuel after driving, re-check that the cap clicks and the sealing lip is clean.
💰 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 0.2-0.4 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.
Guide for Fuel Tank Cap replace for these Mitsubishi vehicles
| Year Make Model | Sub Model | Engine | Body Style |
|---|---|---|---|
| 2017 Mitsubishi Outlander | - | Inline 4 2.4L | - |
| 2017 Mitsubishi Outlander | - | V6 3.0L | - |
| 2016 Mitsubishi Outlander | - | Inline 4 2.4L | - |
| 2016 Mitsubishi Outlander | - | V6 3.0L | - |
| 2015 Mitsubishi Outlander | - | Inline 4 2.4L | - |
| 2015 Mitsubishi Outlander | - | V6 3.0L | - |
| 2014 Mitsubishi Outlander | - | Inline 4 2.4L | - |
| 2014 Mitsubishi Outlander | - | V6 3.0L | - |
















