Question about 2003 Dodge Caravan
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Posted on Jan 02, 2017
P0442--Evap Emission Sys. leak detected small leak
P0455--Evap Emission sys. leak detected gross leak
P0456--Evap Emission Sys. leak detected very small leak
Posted on Jun 11, 2008
SOURCE: check engine light comes on
"po455 large leak" means that you are not maintaining positive pressure in your fuel system. Have a mechanic do a "smoke test" on the fuel system. Could be as simple as a loose gas cap...
Posted on Jun 01, 2009
The problem is most likely to be with your vacuum line they put cheap rubber hose for this purpose. You should find a diagram at the front of the vehicle trace the hoses by this diagram. You most likely will find a bad piece of hose.
Posted on Jul 20, 2009
A code 455 most likely one or more of the following has happened
a loose or bad gas cap
a non-conforming gas cap
other leaks or damage pieces in the evap system
Inspect the evap system for cracks or breaks in lines listen for vacume leaks or strong gas fume smell and fix all lines you find that are damaged ..I know you say you put a new gas cap but make sure it a conforming cap..Hope this helps
Posted on Nov 14, 2009
Testimonial: "Thank you!! I will def. tell my husband to check it out!! Thats the only code that comes up. So I hope this will help."
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