Question about 1998 Chrysler Concorde

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I have been getting a code p0406 lately algong with multiple cylinder misfire codes in a 1998 Chrysler Concorde. I know the p0406 is a egr hi voltage code could this be causing my misfires also if I idle for awhile and then shut the motor off and restart it within a few minutes it will hardly idle or move once you get going finally it clears up. Are all these possibly related to the same problem

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  • John Chiola Sep 12, 2009

    So in your opinion the egr valve could be responsible for all these symtoms

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It's really pretty simple - it can be open when it isn't supposed to be, or it can be closed when it is supposed to be open. If it is open when it is not supposed to be open, at idle for instance, It will act like one monster vacuum leak and the engine will not idle or will idle really roughly. If it doesn't open when it is supposed to open you will probably experience a symptom of "pinging" or "knocking" since the combustion chamber temperature will be higher than normal (one of the main causes of pinging in an engine).

Posted on Sep 12, 2009

  • Bill Schilz
    Bill Schilz Sep 12, 2009

    Yes, absolutely!

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1 Answer

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