Toyota Yaris Fuel Cap Issues – Causes of Cracks o r Looseness?

Home > Gari Forums > Toyota Forums > Toyota Yaris Forums > Toyota Yaris Cracked o r Loose Fuel Cap Forums

Toyota Yaris Fuel Cap Issues – Causes of Cracks o r Looseness?

Hi everyone,

I recently noticed that the fuel cap on my Toyota Yaris has developed some cracks, and it occasionally feels loose after tightening. I’m worried it might lead to fuel evaporation o r affect the car’s performance.

Has anyone experienced similar issues with a cracked o r loose fuel cap on their Yaris? What could be causing this problem, and are there any recommended fixes o r replacement options?

Thanks for your advice!

Qalb E Momin asked on 28 Jan 2025 15:13:11 pm

1 Answer

23 views |

Car Mechanic Expert - on 28 Jan 2025 15:16:03 pm

A cracked o r loose fuel cap on your Toyota Yaris can cause issues such as fuel evaporation, reduced fuel efficiency, o r even triggering the check engine light. Here’s how to address it:

Common Causes:
Exposure to weather conditions can cause the fuel cap to crack over time.
Improper tightening o r wear of the seal can lead to a loose fit.

Recommended Fixes:
Replace the Cap: The easiest solution is to replace the fuel cap with a new one. OEM Original Equipment Manufacturer caps are preferred for compatibility and durability.
Inspect the Seal: Check the rubber seal inside the cap. If it’s worn o r damaged, replacement is necessary.

Replacement Options:
Purchase a new cap from a Toyota dealership o r a trusted online retailer to ensure quality. Universal fuel caps are available but might not fit perfectly.

Precautions:
Ensure the new cap is properly tightened until you hear a click.
Monitor for any warning lights o r performance issues after replacing the cap.

Replacing the fuel cap is a quick, affordable fix that prevents long-term problems, and most drivers can handle it themselves.