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2018 Jeep Renegade
2018 Jeep Renegade

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  • Jeep Renegade
  • 2018
  • How to Replace the Fuel Cap on a 2018 Jeep Renegade (Fix EVAP Leaks & Check Engine Light)
JEEP RENEGADE REPLACE FUEL DOOR LOCK

JEEP RENEGADE REPLACE FUEL DOOR LOCK

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How to Replace the Fuel Cap on a 2018 Jeep Renegade (Fix EVAP Leaks & Check Engine Light)

Step-by-step fuel cap replacement with tools, correct tightening clicks, safety tips, and what to do if the CEL stays on

How to Replace the Fuel Cap on a 2018 Jeep Renegade (Fix EVAP Leaks & Check Engine Light)

Step-by-step fuel cap replacement with tools, correct tightening clicks, safety tips, and what to do if the CEL stays on

Orion
Orion

🔧 Renegade - Fuel Cap Replacement

Replacing your Renegade’s fuel cap is quick and helps prevent EVAP leaks (fuel vapor leaks) that can cause a check-engine light and fuel smell. You’ll remove the old cap and install a new one that seals correctly.

Difficulty Level: Beginner | Estimated Time: 0.1-0.2 hours


⚠️ Safety & Precautions

  • ⚠️ Work in a well-ventilated area away from sparks, cigarettes, or open flames.
  • ⚠️ Turn the engine off before opening the fuel door.
  • ⚠️ If you smell strong fuel vapor, stop and let it air out first.

🔧 Required Tools

You'll need the following tools for this repair:

  • Nitrile gloves
  • Flashlight
  • Clean shop towel

🔩 Required Parts

HowToo sells all the parts you need for this repair:

  • Fuel cap (EVAP-sealing type) - Qty: 1

📋 Before You Begin

  • Park on level ground and turn the engine off.
  • Wait 1-2 minutes after shutdown so fuel vapors settle.
  • Have your clean shop towel ready to wipe the filler neck sealing surface.

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Open the fuel door

  • Open the fuel door by hand.
  • Use a flashlight to look for dirt or damage around the filler opening.

Step 2: Remove the old fuel cap

  • Grip the cap and turn it counterclockwise until it comes off.
  • If your cap has a tether (a small strap that keeps it attached), let it hang safely.

Step 3: Clean the sealing area

  • Use a clean shop towel to wipe the filler neck rim where the cap seals.
  • Don’t push dirt into the filler neck.

Step 4: Install the new fuel cap

  • Place the new cap on and turn it clockwise by hand.
  • Tighten until you feel and/or hear it click (usually 1–3 clicks). This is what makes the seal.
  • If there’s a tether, make sure it isn’t twisted or pinched.

Step 5: Close the fuel door

  • Close the fuel door fully until it latches.

✅ After Repair

  • Start the engine and confirm there’s no fuel smell near the fuel door area.
  • If you had a check-engine light from a loose/bad cap, it may take a few drive cycles to turn off on its own.
  • If the light stays on after a few days of normal driving, the issue may be another EVAP leak (hose, purge valve, etc.).

💰 DIY vs Shop Cost

Shop Cost: $25-$90 (parts + labor)

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

You Save: $15-$55 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.


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