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So I've noticed an odd phenomenon from my 23 ecoboost lately. Anywhere between 60-80 mph I can hear a very distinct ring or whine noise coming from the speakers in my truck only when ever so slightly pressing the gas. It goes away as soon as I let off the gas or apply any appreciable amount of throttle. It's definitely not turbo whistle noise. That is distinct enough and resonates from a different area. This noise sounds like audio feedback interference if you have ever held a microphone to close to a speaker. Anyone else noticed this issue? Been meaning to use an acoustic spectrum analyzer to see what frequency the noise is as well as trying to pinpoint its exact location.
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