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2004 Chrysler Town & Country P0456 Code: Causes and Fixes

Model: 2004 Chrysler Town and Country Fault Code: P0456 Posted: 2011-05-30 18:50

I own a 2004 Chrysler Town & Country with a 3.3L engine that is currently showing a P0456 diagnostic trouble code. My relative has a smoke machine, and after using it to test the system, we identified a faulty EGR valve. We replaced the valve, but the P0456 code has returned after approximately 300 miles. No other leaks were detected during the inspection. Could this be related to another component? Are there known common causes for this specific code in 2004 Chrysler Town & Country models?

Related fault codes
P0456
Comments (1)
Anonymous 2011-05-31 05:03

An EGR valve malfunction does not typically cause a P0456 code. It's likely that the smoke machine was not properly connected or used incorrectly. There is already an in-depth discussion on this forum about P0456 codes in minivans and Dodge vehicles—search for it to identify the actual leak location and root cause.