Having problems with your 1997 Chrysler Town & Country ?

Chrysler town and country catalyst system efficiency below threshold code 420 what is the issues

Posted / edited by AnonymousUser on : 26-02-2018

Answers :

There are too many things to check,that could cause that code. The veh is old enough to have a worn out converter, but I wouldn't jump to that conclusion just based on age. Other issues may have ruined it. Your best bet is a dealer or a really good repair shop. There is a lot to test and check,so expect to spend some money. At least a couple hours diagnostic time,before they throw parts at it.
It is a simple issue here, the catalytic converter is worn out that is the only thing this code indicates.
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