Faint buzzing sound under the hood?

[jbar]

Hi there...2023 Bronco Sport Badland.....car is off, there is a faint buzzing sound under the hood?..thoughts?

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[ShaneGTA]

Mine too. I watched a YouTube video no long ago that went over the whole vehicle. He pointed out a small coolant pump under the engine that stays on after the engine is turned off to keep the circulation of coolant to cool down the engine.

 

[BigPhatPaulie]

Most likely also the fans the headlight modules have

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