Full Size Jeep Network

So my 46re in my 98 ZJ 5.9 limited has 220k miles almost.. shifts exactly the sane as the day i bought it 11 years ago. But now its whining. Really loud too you cab hear it with the window down and people can hear far away. Its a whining whurrrrrrrrrrrrrr nkise.. gets faster as i get faster.. isnt there at a stop. Only happens in 1st 2nd 3rd.. but in overdrive or lockup. Its gone. If it down shift back to 3rd.. its back. Upshift to overdrive. Gone

What could cause all foward gesrs to whine but not in OD ?

Sounds like a torque converter to me. It probably wouldn't be super loud at idle, and in overdrive things might just be moving slowly enough and putting little enough power through it to cause issues.

Could also be a bad clutch or something. Whatever it is, it's probably not good. You might be able to change the fluid and the filter, and that may fix things, but otherwise it's probably time for a tranny rebuild.

Can't help much -

https://batauto.com/threads/46re-transm ... ise.11878/

https://www.bing.com/search?q=46re+whine

Whats weird is in neutral.. if i turn the engine off when rolling at say 30mph. Its still there.. transfercase in neutral. Still there.. so it couldnt be the torque convertor in neutral rolling because thrn it has no torque applied. Its like onky if its rolling at thise speeds it does it.. then OD it stops.. its so weird.

I guess i gatta jack all 4 wheels up and have someone get in the drivers seat when i go under to pin point the noise location

Oh so it's one of those screams. Mine (the SJ, not my mom's ZJ) does something very similar, exclusively when the hubs are locked. 2wd vs. 4wd doesn't matter, if they're unlocked it doesn't make the noise and if they're locked it does. I've checked all of the u-joints on it, and they're fine. Best I can figure, the front output seal on the case (it's definitely up top) is dry, and thus squeals. The volume, and even whether or not it makes noise, appears to depend on speed and temperature/humidity. It sounds like a squealing belt, but it's not.

it sounds like this jeep, was gonna say it sounds like a manual transmission that whines

https://www.youtube.com/watch?v=BcAVvsXZeKE