# 2004 Cadillac DeVille Gas cap issue

**URL:** <https://community.cartalk.com/t/2004-cadillac-deville-gas-cap-issue/120772>\
**Category:** Maintenance/Repairs\
**Tags:** cadillac\
**Created:** [July 10, 2018, 6:43pm UTC](https://community.cartalk.com/t/2004-cadillac-deville-gas-cap-issue/120772 "2018-07-10T18:43:33Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Louise31](https://avatars.discourse-cdn.com/v4/letter/l/dfb087/32.png) [@Louise31](https://community.cartalk.com/u/Louise31)\
**Post date:** [July 10, 2018, 6:43pm UTC](https://community.cartalk.com/t/2004-cadillac-deville-gas-cap-issue/120772/1 "2018-07-10T18:43:33Z")

</div>

What to do about “Check gas cap” problem. 2004 Cadillac DeVille, 50,000 miles.

---

<div class="post-metadata">

**Author:** ![pyrolord314](https://avatars.discourse-cdn.com/v4/letter/p/6a8cbe/32.png) [@pyrolord314](https://community.cartalk.com/u/pyrolord314)\
**Post date:** [July 10, 2018, 7:35pm UTC](https://community.cartalk.com/t/2004-cadillac-deville-gas-cap-issue/120772/2 "2018-07-10T19:35:42Z")

</div>

Make sure you tighten the cap enough (at least 3 clicks) after filling. If that doesn’t solve it, you might need a new gas cap. Another thing you could try is a little petroleum jelly on the gasket to see if that makes it pliable enough to create a good seal again.