Intermittent High Pitched Noise While Driving

cja89

New Member
Apr 15, 2018
8
2
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29
Utah
#1
While driving on Saturday, I noticed a high pitched, almost harmonic noise coming from the Sequoia. It doesn't change pitch with RPMs or speed, but seems to get louder the faster I go up until about 55 and then it goes away. I also can't pinpoint a general area that it's coming from in the vehicle.

It sounds exactly like in this video (~7 seconds in you can really hear it). My wife called me today saying it was doing it and it was loud enough that I could hear it over the phone. I had her power the radio off as it sounds almost like feedback, but the noise continued.

Any ideas on what this could be?