Stalling while driving

KIM TAEUFFER

MEMBER
2000 CHRYSLER CONCORDE
3.5L
6 CYL
2WD
AUTOMATIC
94,000 MILES

My cars check engine light will come on then my car shuts while driving down the road or just stopped and idling. Does not always shut off when the check engine light comes on sometimes when the check engine light comes on it will hesitate like it wants to shut off but does not shut off. Always starts right back up! If I am driving down the road and it shuts off I just put it in neutral and start it back up then put it in drive and keep driving.

6 Replies

CARADIODOC

MECHANIC
33,873 POSTS

The place to start is by reading and recording the diagnostic fault codes. Chrysler made doing that yourself much easier than any other manufacturer. Cycle the ignition switch from "off" to "run" three times within five seconds without cranking the engine, leave it in "run", then watch the code numbers show up in the odometer display. Post the numbers in your reply and I will interpret them for you, or you can go here to see what they mean:

https://www.2carpros.com/trouble_codes/obd2

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Monday, October 23rd, 2017 AT 3:05 PM

KIM TAEUFFER

MEMBER
4 POSTS

I have done the self diagnostic code and it just keeps giving me the same code P1684, I believe, which is something about the battery has been disconnected within the last fifty starts. I have hooked a Blue driver up to my car and still no codes! I am trying to avoid taking my car into a shop because that could start becoming costly! I cannot pass my smog because every time the check engine light comes on I have to wait until my computer system resets itself. It is becoming a nightmare!

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Monday, October 23rd, 2017 AT 11:52 PM

KEN L

MASTER CERTIFIED MECHANIC
47,640 POSTS

It sounds like you have a PCM that is going out. That's what happens when you get an interruption code.

But to be safe please check the battery cables for corrosion and connection.

Here is guide to help you

https://www.2carpros.com/articles/everything-goes-dead-when-engine-is-cranked

Please let us know what you find. I'm interested to see what it is.

Cheers, Ken

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Wednesday, October 25th, 2017 AT 5:15 PM

KIM TAEUFFER

MEMBER
4 POSTS

I just had a new battery put in back in May. And this code was popping up before the new battery was put in. It seems to die every morning after I start it up. And when I'm driving check engine light will come on and it hesitates to die and doesn't, then other times same thing happens and will die. Yea I am really interested to find out what the problem is too! Thanks!

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Wednesday, October 25th, 2017 AT 5:58 PM

CARADIODOC

MECHANIC
33,873 POSTS

Here's one thing you need to be aware of, although I don't think this will address all of the problem. When the battery is disconnected or run dead, the Engine Computer loses its memory. Most of its learned stuff will be relearned while you're driving, without you even noticing, ... Except for "minimum throttle". Until that is relearned, the computer will not know when it must be in control of idle speed. The engine may not even start unless you hold the accelerator pedal down 1/4". If it does start, it might stall when you shift into gear, it will tend to stall at stop signs, and you won't get the nice idle flare-up to 1500 rpm at start-up.

You have to meet the conditions for the relearn to take place. To do that, drive at highway speed with the engine warmed up, then coast for at least seven seconds without touching the pedals. Until that is done, idle speed will be too low. This causes staling due to low engine speed. It will not cause stalling while you're driving.