Two problems related to loud engine noise have been reported for the 2006 Chrysler 300C. The most recently reported issues are listed below.
2006 Chrysler 300c. Car has 84,000 miles. Drove around today for a half hour. Parked car. Restarted car in 5 minutes, it made a horrible sound and car started shaking, ran rough and then died. Would only restart with foot on gas and ran very rough. Took it to firestone and they said that the valve/cyliner #5 dropped. Engine is shot, unless I pay to have it re-bult or replaced. Car is not even worth it. Already had to have a re-bult transmission on car at 68,000 miles. Car is a joke and so is Chrysler, never buying another one of their products again. Oil was changed regularly. Horrible manufacturing in this car, from engine to trans to gas tank issue to electical. Car is a lemon.
The contact owns a 2006 Chrysler 300c. The contact stated that the engine started to exhibit an abnormally loud noise as the vehicle started to jerk violently. The vehicle was taken to the dealer who diagnosed that the number six intake valve failed and would need to be replaced. The manufacturer was made aware of the failure who did not offer any assistance. The vehicle was not repaired. The failure and current mileage was 85,000. The VIN was not available.