![doug7740](https://tbird.fordthunderbirdforum.com/data/avatars/m/7/7362.jpg?1457867925)
doug7740
- Reaction score
- 1,109
- Thunderbird Year
- 1955
Here are some of the proable causes of fault P0442.Any ideas what causes a code po442 small evap leak? I replaced the gas cap and my next item is the purge valve.
doug7740
1955 Thunderbird Blue
![Evap 3.jpg Evap 3.jpg](https://tbird.fordthunderbirdforum.com/data/attachments/44/44658-e52b54ae5c8f61ed885970fb5ba9ba34.jpg?hash=5StUrlyPYe)