# 1997 Ford F150 P0442 **URL:** \ **Category:** Maintenance/Repairs\ **Tags:** ford, f150\ **Created:** [April 30, 2018, 11:05pm UTC](https://community.cartalk.com/t/1997-ford-f150-p0442/116536 "2018-04-30T23:05:52Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Matt06](https://avatars.discourse-cdn.com/v4/letter/m/e36b37/32.png) [@Matt06](https://community.cartalk.com/u/Matt06)\ **Post date:** [April 30, 2018, 11:05pm UTC](https://community.cartalk.com/t/1997-ford-f150-p0442/116536/1 "2018-04-30T23:05:52Z")
Have a 97 f150 4.6 v8 with check engine light. Code reader says P0442 Evaporative Emission System Leak Detcted (Small Leak). Already replaced gas cap and then the light came back on. Any ideas? ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [April 30, 2018, 11:55pm UTC](https://community.cartalk.com/t/1997-ford-f150-p0442/116536/2 "2018-04-30T23:55:48Z")
That code simply tells you the evap system wasn’t able to generate an appropriate sized vacuum within the specified time frame Could be a rotten fuel sender seal, fuel filler hose, vapor line, canister, purge valve, vent valve, and so on See where this is going? If you want to be sure, pay for a proper diagnosis and repair ---
**Author:** ![psanzone](https://avatars.discourse-cdn.com/v4/letter/p/ac8455/32.png) [@psanzone](https://community.cartalk.com/u/psanzone)\ **Post date:** [May 1, 2018, 11:45am UTC](https://community.cartalk.com/t/1997-ford-f150-p0442/116536/3 "2018-05-01T11:45:40Z")
If you live where they salt the roads in the winter, check the metal fuel filler tube between the filler entrance and the tank. That rusted enough to make an opening on my previous pickup truck. That is something you can do before having to check all the other stuff.