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2017 Toyota Tacoma
2000 - 2026 Toyota Tacoma
Inline 4 2.4L
Compatible with more variants.

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How to Fix & Reset Fuel Cap / Gas Cap Warning Light Stays On or Flashing | Fuel Cap Light On

How to Fix & Reset Fuel Cap / Gas Cap Warning Light Stays On or Flashing | Fuel Cap Light On

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How to Replace the Fuel Cap on a 2017 Toyota Tacoma

Step-by-step instructions, safety tips, and parts needed for a quick DIY fix for 2000, 2001, 2002, 2003, 2004, 2024, 2025, 2026

How to Replace the Fuel Cap on a 2017 Toyota Tacoma

Step-by-step instructions, safety tips, and parts needed for a quick DIY fix for 2000, 2001, 2002, 2003, 2004, 2024, 2025, 2026

Orion
Orion

🔧 Fuel Cap - Replacement

The fuel cap on your Tacoma simply twists on and off. If the seal is cracked or the cap no longer clicks properly, replacing it can help prevent evaporative emissions faults and fuel vapor leaks.

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


⚠️ Safety & Precautions

  • Do this with the engine off and the truck parked on level ground.
  • Do not smoke or work near open flames around the fuel filler area.
  • If fuel vapors are strong, wait a few minutes before installing the new cap.

🔧 Required Tools

You'll need the following tools for this repair:

  • No tools required

🔩 Required Parts

HowToo sells all the parts you need for this repair:

  • Fuel cap - Qty: 1

📋 Before You Begin

  • Park on level ground and make sure the fuel door is open.
  • If the old cap has a tether, inspect it for damage before closing the fuel door.

🔨 Step-by-Step Instructions

Follow these steps in order:

Step 1: Remove the old fuel cap

  • Turn the old fuel cap counterclockwise until it releases from the filler neck.
  • If it is tethered, let it hang by the strap or unclip it if needed.

Step 2: Inspect the filler neck

  • Look at the rubber seal area and the filler neck opening for dirt, cracks, or damage.
  • If needed, wipe the area clean with a dry cloth.

Step 3: Install the new fuel cap

  • Thread the new fuel cap onto the filler neck by hand.
  • Turn it clockwise until you hear it click several times or it seats firmly.
  • Hand-tight is enough.

Step 4: Verify proper installation

  • Try turning the cap gently to confirm it is locked in place.
  • Close the fuel door.

✅ After Repair

  • Start the truck and look for any fuel warning lights on the dash.
  • If the check engine light was on for a loose cap, it may take a few drive cycles to clear after the repair.
  • Make sure the cap stays secure after a short drive.

💰 DIY vs Shop Cost

Shop Cost: $50-$120 (parts + labor)

DIY Cost: $15-$40 (parts only)

You Save: $35-$80 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.


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