TRNW-2: Dribbler valve on 66RFE stator

[Justin Merritt]

A couple years ago I had problems with a 68rfe and Jim Mobley and transgo robert both were trying to help me out. They explained how to test the dribbler valves and how they were designed to keep the clutch fluid circuit full. Basically, blow air in the orfice side, and they should have the same sounding air leak out what looks like the screen side. I would think it would be more common to have one stopped up with debris that wouldn’t let air pass thru. These are the same function as 42rle or 62te. I test them all now, and haven’t found an issue with any. Maybe this will help you. 

Justin 
Sent from my iPhone

> On Jul 19, 2025, at 8:17 PM, donnadan--- via trnw2 <trnw2 at trnw.net> wrote:
> 
> 
> If I remember right, this was the cause of overdrive clutches burning up sometimes. Getting old, I guess, I can't find the discussions in the discussion forum.
> 
> From: "TRNW2" <trnw2 at trnw.net>
> To: "TRNW2" <trnw2 at trnw.net>
> Sent: Saturday, July 19, 2025 4:23:43 PM
> Subject: TRNW-2: Dribbler valve on 66RFE stator
> 
> Can anyone educate me on how to test and, if necessary, replace the small dribbler valves in this 2017 66RFE? Where can I purchase them? I remember Art talking about these years ago...
> 
> This message was sent from the TRNW Technical Discussion Forum (trnw2). You were sent this message because you have subscribed to our mailing list. If you don't want to receive these emails from TRNW in the future, please unsubscribe here:
> https://www.trnw.net/unsubscribe.php?forum=2
> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
> This message was sent from the TRNW Technical Discussion Forum (trnw2). You were sent this message because you have subscribed to our mailing list. If you don't want to receive these emails from TRNW in the future, please unsubscribe here:
> https://www.trnw.net/unsubscribe.php?forum=2
> TRNW Inc., 2825 Walnut Terrace, Modesto, CA 95355
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.trnw.net/pipermail/trnw2/attachments/20250719/cbfadb57/attachment.html>