When pressing on the accelerator it makes a noise that sounds like a jet taxing

2007 GMC ENVOY
70,000 MILES • 4WD • AUTOMATIC
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DAWN AGNEW
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My vehicle has a jet taxing noise it makes when press on accelerator to go. I have had the alternator changed and the power steering fluid line. The sound does sound like it is coming from the alternator area. Please help.
Jul 19, 2018 at 12:12 PM
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DANNY L
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Hello, I am Danny.

Just a quick question first. Does your vehicle make this same noise when car is in park with engine running and revving up the engine? If so is there any way you could upload a video of this sound being made? Please get back to us if you could do this and thanks for using 2CarPros.
Danny-
Jul 20, 2018 at 6:14 PM