Strange whooshing sound

[deathrament]

Hi, I started up my 07 Yaris this morning and its make this odd sounding whooshing sound from the front . Kinda sounds like pulsating air maybe. Engine feels normal. It's working the same it seems like other then that sound. Seems to do it at all speeds.

[SeaYa]

May be worth checking your intake and engine filter. Not unheard of for mice to make a home in the intake and chew through a filter. Also, if the intake isn't clipped on correctly, or a clip has rusted out, you may not have a good seal where it meets the filter, allowing air in where it's not meant to be flowing. Good luck!