Hello! I noticed that my XC90 in the cold condition when giving gas there are noises of itself.. it is as if there was a vacuum cleaner in the engine room.. so it is not a real howling but rather like a nozzle… when I walk away from the gas, then the automatic switches after a few seconds into the idling mode and as soon as the car is in idle, the nozzle is gone.. after about 20min or 20km it is completely gone, so when everything has become warm… I have a transmission flush up and the jerking between 3rd and 4th gears and the nozzle is still there.. I’m not sure now whether it comes from the gearbox.. otherwise you hear the turbo light, but is everything okay.. someone an idea?