Hello all,

I just picked up a 2008 G37S Coupe. Love the car but I must have not heard this issue while test driving the car and the previous owner did not mention it.

The sound resembles a vaccum noise but not as loud and it only happens when I drive "adventurously". If i give it a little extra gas than needed than the sounds comes on and lasts until I take my foot off the gas. At first I thought it was related to the AC somehow but it still happens even when the AC is off.

No mods done to the car, 120k miles on the odo.

Does anyone have any ideas of what it could be?

Thanks,

 

did you end up figuring this out. i installed new intake hoses connecting intake to throttle body and i think im experiencing same issue. i think there is a vacuum leak of sorts near the throttle body.