Hey guys, so i noticed when my sister came by today as she was leaving her car was making a strange whistling sound. At idle it wouldn't do it, only when the brake was released to go in reverse and when she accelerates. She said its never done that before and was the first time its ever done this. Has anyone experienced anything like this. Car is a 94, V6, 130,000 miles. I'm normally in the modular forum but since this isn't my car i thought i'd seek knowledge from you guys. Any help would be appreciated, thanks.