← Back to list

P0456 OBD2 Error in 2006 Chrysler Pacifica: How Often Does a Gas Cap Fix It?

Model: 2006 Chrysler Pacifica Fault Code: P0456 Posted: 2009-06-26 06:35

I'm experiencing a recurring P0456 diagnostic trouble code on my 2006 Chrysler Pacifica. After resetting the system, the error returned after just one week. I haven't yet tested the gas cap, but I want to know how frequently replacing it resolves this issue—especially since the code is commonly associated with evaporative emissions system leaks.

Related fault codes
P0456
Comments (3)
Anonymous 2009-06-26 09:03

In over 50% of cases involving P0456, using the correct gas cap sold at an authorized dealer resolves the issue.

Anonymous 2010-07-07 13:32

I replaced the gas cap as a fix, but the P0456 code returned shortly after.

Anonymous 2010-07-07 15:27

If the gas cap is not the source of the leak, then professional system leak testing using smoke inspection may be required to identify the actual fault point.