Two problems related to gas recirculation valve (egr valve) have been reported for the 1999 Chrysler 300M. The most recently reported issues are listed below.
The contact owns a 1999 Chrysler 300m. While driving approximately 15 to 20 mph the vehicle stalled, the oil light came on and the steering wheel locked. He shifted the vehicle into park gear and restarted the vehicle. The vehicle restarted and within a few minutes it stalled again after several attempts. Two days after the failure he took the vehicle to an authorized dealer who confirmed that the egr valve caused the failure to occur. The vehicle was not repaired since the parts are on backorder. The dealer does not know when the parts will be available. The approximate failure mileage was 111,000 and the current mileage was 111,065.
In 7/03 car died on highway at 75 mph with no warning finally managed to get it going again and left at dealer. Dealer said it need tune up. We replaced plugs, egr, and cleaned map sensor. In 9/03 same thing happened on highway, this time dealer said to replace map sensor. We did. 1 week later same thing on highway again. Managed to restart and drive to dealer. This time it was powertrain control module. Dealer replaced. On way home from dealer car ran rough and died. Dealer said it was throttle position sensor. We replaced. 11/03 car died this time on a side road (thank god) would not restart. Had towed home and then towed to dealer. Dealer said it was intake valves on both sides and replaced. 2 days after picking up car it died again on a side road. Dealer currently has car and cannot figure out what is wrong with it. There is no warning when car is going to die out I am lucky not to be dead as each time it died on highway I was going 75 mph and in passing lane. I noticed 7 or 8 like complaints on your website. Only one got resolved. I am hoping to be number 2.