 High Pitched Whistle Noise 2004 Freestars
Hope this helps all of you frustrated 2004 Freestar Van owners. There is "TBS" bulletin on these vans. The bulletin is not rated as a recall, just yet...however, it should be a recall.
Go to AutoWeb.com and put in all the data in for recalls. You will see a notice for the Wheels Cap/cover/hub.
I just had to have my wheel bearings/hubs replaced by a Ford dealer due to this high pitched whistle sound. I already had my rotors and front brake pads replaced, due to over-heated pads. Most likely, the pads were over-heated and cracked due to this problem. I did have the "CPS" warranty, therefore, I only had to pay $100.00 deductible. The whistle sound is gone...hopes this helps you if you are having this problem. | 
