One problem related to engine noise has been reported for the 2006 Nissan Quest. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Nissan Quest based on all problems reported for the 2006 Quest.
The fan under the dash which blows the air through the front vents has stopped functioning after making odd noises. The fan controlling the air flow in the back passenger section works correctly.