One problem related to loud engine noise has been reported for the 2003 Saturn ION. The most recently reported issues are listed below.
The contact owns a 2003 Saturn Ion. The contact stated that when the vehicle was first started, the timing chain would exhibit an abnormally loud noise. The noise would cease once the engine was warm but could still be heard as the contact attempted to accelerate. In addition, the vehicle would become resistant to starting attempts in colder weather. The dealer advised the contact that both of the failures were common, but was not under recall. The vehicle was not repaired. The failure mileage was unknown, but the current mileage was 113,000. The VIN was not available.