Sounds like a bird chirping when accelerating between 30 and 40 MPH (I've looked - no bird)

Help. I took it in to repair shop and they checked all belts and said its all good but I still hear noise. Sure hope it’s not the transmission as it only has 44K miles. Car is Sentra 1.8 - 2006.


A water pumps bearing that’s going could also make this noise. There are also the alternator and A/C compressor that could have bad bearings.