# Check engine light, code P0455 **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** chrysler, check-engine-light\ **Created:** [September 28, 2019, 5:19pm UTC](https://community.cartalk.com/t/check-engine-light-code-p0455/149697 "2019-09-28T17:19:52Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![danielparker10\_156597](https://avatars.discourse-cdn.com/v4/letter/d/b9e5f3/32.png) [@danielparker10\_156597](https://community.cartalk.com/u/danielparker10_156597)\ **Post date:** [September 28, 2019, 5:19pm UTC](https://community.cartalk.com/t/check-engine-light-code-p0455/149697/1 "2019-09-28T17:19:52Z")
about a month ago, i got a gas cap light. it went away after driving a bit. 200 miles later, i get a check engine light. i got one of those scan tools for the engine and it says code P0455 "evapoative emission system leak detected. (gross leak / no flow ). i dont know what part needs replacing or if i need to take it to a shop? i’m going to try to get a new gas cap but i need other suggestions. ---
**Author:** ![danielparker10\_156597](https://avatars.discourse-cdn.com/v4/letter/d/b9e5f3/32.png) [@danielparker10\_156597](https://community.cartalk.com/u/danielparker10_156597)\ **Post date:** [September 28, 2019, 5:24pm UTC](https://community.cartalk.com/t/check-engine-light-code-p0455/149697/2 "2019-09-28T17:24:13Z")
forgot to give my make and model. 2008 chrysler aspen 5.7L v8. ---
**Author:** ![Tester](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/tester/32/15976_2.png) [@Tester](https://community.cartalk.com/u/Tester)\ **Post date:** [September 28, 2019, 5:27pm UTC](https://community.cartalk.com/t/check-engine-light-code-p0455/149697/3 "2019-09-28T17:27:14Z")
The code can also be caused by a bad vent control valve if the gas cap replacement doesn’t work. Tester ---
**Author:** ![cdaquila](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/cdaquila/32/18089_2.png) [@cdaquila](https://community.cartalk.com/u/cdaquila)\ **Post date:** [April 16, 2020, 7:27pm UTC](https://community.cartalk.com/t/check-engine-light-code-p0455/149697/4 "2020-04-16T19:27:37Z")