# EVAP Leak 2004 CR-V **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [May 6, 2009, 2:23pm UTC](https://community.cartalk.com/t/evap-leak-2004-cr-v/30117 "2009-05-06T14:23:24Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![BeepBeep](https://avatars.discourse-cdn.com/v4/letter/b/da6949/32.png) [@BeepBeep](https://community.cartalk.com/u/BeepBeep)\ **Post date:** [May 6, 2009, 2:23pm UTC](https://community.cartalk.com/t/evap-leak-2004-cr-v/30117/1 "2009-05-06T14:23:24Z")
I have a 2004 Honda CR-V. The check engine light came on. I was told it was due to the gas cap not being on tight. The dealer ran a diagnostic and said that was the problem. A week later the light is still on. A diagnostic says there is an EVAP leak. The dealer has replaced the Purge Control Valve and there is still an EVAP leak. They have had the car for over 2 days, and cannot seem to find it. Was the Purge Control Valve replacement necessary or am I being taken by the dealer? ---
**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:** [May 6, 2009, 3:17pm UTC](https://community.cartalk.com/t/evap-leak-2004-cr-v/30117/2 "2009-05-06T15:17:58Z")
Instead of them just replacing parts of the EVAP system to find the leak, they should be using a smoke machine to locate the leak. This is one of the main reasons these smoke machines were created. Tester ---
**Author:** ![mmoss111](https://avatars.discourse-cdn.com/v4/letter/m/5f9b8f/32.png) [@mmoss111](https://community.cartalk.com/u/mmoss111)\ **Post date:** [May 6, 2009, 3:53pm UTC](https://community.cartalk.com/t/evap-leak-2004-cr-v/30117/3 "2009-05-06T15:53:28Z")
Did they reset the Check engine light? I have had this problem often because my wife never tightens the gas cap after she fills up. If it is just the cap, it will take a week of driving but the car computer will actually remove the failure if it detects no further problems with the gas cap. ---
**Author:** ![BeepBeep](https://avatars.discourse-cdn.com/v4/letter/b/da6949/32.png) [@BeepBeep](https://community.cartalk.com/u/BeepBeep)\ **Post date:** [May 6, 2009, 5:47pm UTC](https://community.cartalk.com/t/evap-leak-2004-cr-v/30117/4 "2009-05-06T17:47:43Z")
Yes, They did a smoke test and then replaced the Purge Valve Control. But they said there is still an EVAP leak. They have had the car for 2 1/2 days. Is it really this difficult?