What year? Yeah, not many other noises it can be after you take the belt off. If it's just one single part that's gone bad (like mine was this time...one tensioner shoe out of all the parts) then it does sound like very loud intake tract whine/induction noise. My dealership did not hear it outside in an open lot the first time I took it in. But it's definitely there. Did not change significantly with temperature, is linearly related to engine RPM, not load, etc.RogerBed wrote:I have the whining/whirring sound all the time while the car is running. I recently brought it in for another issue and the mechanic said he listened to the car for a moment with no belt on and the sound was still there. He ruled out the belt and alternator (Which was my first guess and sounded exactly like that was the problem). He wasn't sure what it was without digging around all over the place (I needed the car back rather quickly) and I am not certain. I have one year on my warranty, so I think I'll bring it to a Nissan dealer and see what they say. Hopefully they recognize it right away and I'll only have to pay the small deductible. I'll try yo update the post with a video.