Q: Strange squeak when engine go over 950 rpm and back

asked by on March 01, 2016

If I press accelerator gradually car makes strange squeak when engine go over ~ rmp 950. And when I release pedal and the turns fall below 950 I hear it again. 700 -> 800 -> 900 -> 950 (squeak) - > 1000 -> 1100 -> 1000 -> 950 (squeak) -> 800 -> 700. Here is the video (one reproducing at the parking lot, and one at the garage where it sounds louder due to reverberation): https://youtu.be/CjLGsAhs9nQ

My car has 88000 miles.
My car has an automatic transmission.

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