One problem related to engine rattling and whining sounds has been reported for the 2006 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Hyundai Sonata based on all problems reported for the 2006 Sonata.
The contact owns a 2006 Hyundai Sonata. While driving 20 mph, he heard a loud banging noise coming from the rear of the vehicle. The contact stated that the noise was louder while making a turn with a passenger seated in the rear. The dealer inspected the vehicle on two occasions; the first time they were unable to diagnose the failure and the second time the dealer adjusted the rear suspension. The suspension adjustment failed to solve the failure. As of October 9, 2007, the dealer had not repaired the vehicle. The failure mileage was 12,000 and the current mileage was 16,997. The dealer stated the front right door lock inoperable, passenger seat area makes a rattling sound, right trunk trim vibrates when vehicle in motion and hears knocking sound in the engine. Updated 10/23/07.