I have an 2010 MN Auto,
My gf and I were driving home form hospital last night (bunged me back), so I was laying flat in the passenger seat. After we pulled in to fill up, the car stared making a strange sound, only on acceleration.
It sounds a lot like the car is sucking air, or a non streamlined object is moving through the air, reminiscent of the sound your AC fan makes when it's pumping. It only happens under acceleration. From where I was laying in the passenger side, it sounded like it was coming from the dash or maybe the snorkel.
She said the car felt normal to drive, no loss of power, no warning lights etc.
Today, I was able to waddle to the car and had her open the hood for me to eyeball hoses etc. Everything looks normal, I didn't check the air filter box.
It had an EGR blank and catch can installed a couple weeks ago, I don't know if or how either would have much to do with anything?
Can anyone make sense of what I'm describing or have any thoughts on what it might be?