Chrysler Concorde keeps dying but restarts with in minutes

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#1
I am completely frustrated.
1999 Chrysler Concorde LXi. 180,000 miles. 3. 2L V6
Bought the car used 3 yrs ago. About 2 yrs ago it died while I was driving. Waited a few minutes and it started right back up. Nothing again till about 6 months ago. It has gotten worse. Now it lunges, like it's shifting hard or surging. It dies at least once a week. Usually starts up with in a few minutes and then nothing for a few days. Last night it took 15 minutes to start again. There doesn't seem to be a common denominator here. It does it on all roads in all conditions without any warning.

Unrelated? We also have the code PO400 (EGR valve malfunction).

Any advice?
 

JimD10796

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#2
First off, i see no P0400 listed in Alldata for that vehicle. I'd scan it again and correct that fault first. However the problem you describe sounds alot like a fuel pump module malfunction, so i'd be checking fuel pressure. The fuel filter on that vehicle is part of the module and is non serviceable.
 

billr

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#3
Clarify: When it won't re-start for several minutes (up to 15!), does it crank OK during that period, just won't fire?
 
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#4
cranks, but wont fire.

I may have the code written wrong, but the result is the EGR Valve malfunction.
 
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#5
Found in Trouble Codes>
Chrysler>
Generic 96-01>
P0400 Exhaust Gas Recirculation (EGR) Flow Malfunction
 

billr

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#7
OK, buy a can of carb-cleaner and carry it with you. The next time it stops and won't restart, open up the air filter and spray a quick blast (1-2 seconds) of the carb-cleaner into the engine's intake. If it fires that way, even briefly, then it is likely a fuel problem. If it won't fire, then we need to look at ignition; pull off one of the spark-plug wires and lay it close to some metal ground on the engine while you crank, see what the spark looks like.
 

billr

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#10
These days, many EGR valves are electric-driven, even with feed-back pots for position. Cleaning might help, but lots of other things to go wrong in there...