One problem related to engine noise has been reported for the 2005 Nissan Armada. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Nissan Armada based on all problems reported for the 2005 Armada.
The vehicle has a consistent, over-accentuated vibration and noise that emanates from the engine compartment when under acceleration, especially minor acceleration in high gear. The noise is loud and distracting, the vibration is pronounced and can be felt in the steering wheel, gas & brake pedal and gear shift. It gives your feet and hands a "buzzy" vibration which is uncomfortable and distracting. It feels and sounds as if a motor mount or some type of vibration damping part has failed and is sending the vibration into the passenger compartment. Local Nissan dealer service dept. Claims "it's supposed to be that way because its got a big engine in it. " I think not.