Question about 1999 Chrysler 300M

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Car keeps stalling!!!!

I have a 99 chrysler 300m that keeps stalling no matter what speed im at.It stalls where it wants when it wants.I have no problem starting it.After it stalls i have to let it set anywhere from 20 min. to1hr,before it will fire back up.I also am getting a code now of P1684.PLEASE HELP...This is stressing me out!Thanks,Michelle

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  • kenny hunsaker Nov 11, 2008

    my car is a 1999 300mdoes the very same thing but starts sooner than yours will only 1 ,minute to restart then fine till next time

  • kenny hunsaker May 11, 2010

    mine does it to

  • erik mcdonald
    erik mcdonald May 11, 2010

    are you sure it is p1684 because my records arnt showing the number for that year of car what is the production date on the door? (month/year) my records show a...

    p1682-charging system voltage too low

    p1683-speed control power relay, or speed control 12v driver circuit

    p1685-wrong or invalid key msg recieved from skim

    p1686-no skim buss message recieved

    p1687-no mic bus message



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Called on my 2001 300M. Complained to Chrysler about it it being a safety recall issue mine stalls when pressing the brakes and starts right back up. Chrysler said no one has ever complained about this before ....start calling Chrysler people over this. It is dangerous and a safety issue to their customers. It's all fin and games til it kills someone.

Posted on Oct 20, 2015

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Stalling 300m .crankshaft sensor has fixed my stalling problem as of today . hope this helps you too

Posted on Nov 11, 2008

  • kenny hunsaker Nov 12, 2008

    thanks for the help eeeeeeeeeeeeekz my 300m got a new crankshaft sensor today and has not stalled all day about 50 miles and that is a record distance for it


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Kmhs4,  I would suggest checking the battery terminals if you are recieving codes related to your voldtage. Please update us with what you decide to do.  Thank you

Posted on Nov 11, 2008

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