Transmission noise

[jrdery]

My 2000 Ram makes a noticeable whining noise (I believe from the transmission) when I am moving between 30-40 mph. It's a high pitch whine but I do notice that it immediately goes away when I hit around 40 mph. This happens whether I am in drive or neutral. If I am moving faster everything seems fine, but when I slow down to about 40-30 mph it comes back. As far as shifting and driving it seems normal as always, I just want to know what that sound could be. The fluid looks good nice and red and at the proper level. If anyone has any ideas please let me know. I don't know if it could be a gear bearing or a pump making that noise. The truck is 14 years old and has 138,000 miles on it. It really doesn't affect the performance at all, just an annoying whine.

 

[RamV10]

2wd or 4wd?

 

[Jsinclair92]

It sounds like the same first gear whine I'm hearing in my truck. Have you found out anything yet?