Re: 2003 Dodge Caravan P0456 Post by jeff compton » Sat Oct 01, 2011 6:50 pm there's already a huge thread on here about that code on caravans! you most likely have a cracked vaccum line under the hood near the purge solenoid or under the van near the cannister!
2001 Dodge Grand Caravan, 3.3L V6 with aprox 97K miles, check engine light is on again for the fourth time in less than 2 months. The first time the codes were 1684 & P0456, we changed the gas cap to a new one and had the codes reset. ...
2. P0455 evap emission control system leak (large). The truck runs Ok. What are the possible ... Dodge Caravan 2003 P1684 P0442 P0455 P0456Check engine light came on a couple of weeks ago. At first it was just the battery code P1684 and the small evap code P0442. Now the other...