One problem related to loud engine noise has been reported for the 1999 Buick Lesabre. The most recently reported issues are listed below.
The contact owns a 1999 Buick Lesabre. The contact stated that upon starting the vehicle, a loud noise was heard and white smoke emitted from the engine compartment. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure and current mileage was 114,000.