Code P0446
Thread Starter
5 Year Member
Joined: Mar 2011
Posts: 34
Likes: 1
From: Chambersburg PA
Code P0446
On the way home from work today the check engine light came on. So I stopped at autozone for them to check the code and it came up as P0446 evaporative emission system. What should I look at first? I forgot it is a 2011 with the 5.0.
Last edited by Dakota2011; Mar 9, 2015 at 07:24 PM.
Senior Member
Joined: May 2013
Posts: 850
Likes: 135
From: Mississippi
Go look under the truck on your driver side. The evap canister should be there. It's a black plastic box. Make sure connections are good and that it's not cracked at all. Had same problem and something had damaged mine. Easy fix if so