Why Does My Fuel Cap Make a Clicking Sound but Still Feel Loose?

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Why Does My Fuel Cap Make a Clicking Sound but Still Feel Loose?

When I tighten the fuel cap on my Tucson, it makes the usual clicking sound, but it still feels a bit wobbly afterward. Is this normal o r a sign of wear and tear? Could this lead to fuel evaporation o r any performance issues in the long run?

Gari Specialist asked on 14 Jun 2025 11:01:29 am

1 Answer

13 views |

Gari Master - on 14 Jun 2025 11:03:24 am

The clicking sound is designed to indicate that the cap is tight enough. However, if the cap still feels loose after clicking, it could mean:

The internal locking mechanism is worn.

The rubber gasket is compressed o r dried out, reducing grip.

The cap was over-tightened previously, damaging its threads.

While the click might occur, it may not actually be sealing properly, which can lead to fuel vapor loss, warning lights, o r poor fuel efficiency.

To fix:

Inspect the gasket and replace the cap if it shows signs of damage o r stiffness.

Always tighten until the first few clicks—don’t force it.

If under warranty, Hyundai may replace it free of charge.