TRNW-2: 10L1000 P0747 Gm Fix….

[tucker tuckertrans.com]

Pat,

Yes we have but we do some dealer work so it requires this.  The Sonnax 105740-54K has been a 100% fix so far, however it doesn't vacuum test good unless you run a tubing cutter around the sleeve and that is a risky maneuver.  Cut it to much and it gets stuck and you lost the valvebody.

Dan Tucker
________________________________
From: trnw2-bounces at trnw.net <trnw2-bounces at trnw.net> on behalf of pat schulte via trnw2 <trnw2 at trnw.net>
Sent: Wednesday, August 27, 2025 1:02 PM
To: Technical Discussion Forum <trnw2 at trnw.net>
Subject: Re: TRNW-2: 10L1000 P0747 Gm Fix….

Have you used the Sonnax valve that is supposed to fix it as well?

On Wed, Aug 27, 2025 at 10:49 AM tucker tuckertrans.com<http://tuckertrans.com> via trnw2 <trnw2 at trnw.net<mailto:trnw2 at trnw.net>> wrote:
Group,

We just got these in to 'supposedly fix' the 10L1000 P0747 neutral in 4th hot.  I'm not so sure about it, but what do I know.  The TSB is 25-NA-158 I think, going by memory.  It came out August 18 and it automatically canceled all the valvebodies we had ordered.  Time will tell

Dan Tucker

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--
Pat Schulte
AAMCO Transmissions
Temecula, Ca.
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