whistling

2002 4.0 184k miles auto When in drive or reverse, there is a noticeable high pitched whistling/bird chirping-ish sound coming from the trans pan of my TJ. It seems to begin once warmed up and will occur while idling, but goes away when moving. It stops when placed in park or neutral as of...

Hi all. Here's the story: I've only had my 2004 TJ for about a week or so. I purchased it used from a dealer, and overall it runs well. Drove it this morning, all was good. Several days ago, she did something weird: She whistled. Not a small whistle, oh no, but a large all out steam kettle...