No it is not that kind of sound and it does it when the car is stopped sometimes. It sounds like maybe an air of vacuum leak and the more I think of it , it might be a vacuum leak in the brake booster. I checked the vacuum hose connection and it is solid. what makes me think that is one day after I shut the car off , it whistled and kind of ran down to nothing. I'll have to have the dealer check that booster. it is getting unnerving when it runs all the while I'm driving!
thanks for the response