TRNW-2: 42rle never goes past partial lockup

[Richard Wardell]

Good morning Steve.  I've looked through what I have.  Are there any U
codes in any of the modules?

On Wed, Sep 17, 2025 at 5:57 AM Steve Everett via trnw2 <trnw2 at trnw.net>
wrote:

> I have an 05 Dakota with 42rle that I'm trying to solve this lockup
> issue,  built by someone else , and has not been delivered to the customer
> yet,  originally it was kicking in and out of partial lockup randomly,
> after driving it a couple times we decided to unplug the alternator as it
> had recently been replaced,   that stopped the in and out of lockup,
> installed a new alternator, no more in and out of lockup issues,  but it
> never goes into full lockup , no matter what speed , driving on level
> ground ,  50-60mph,  stays in partial lockup and we can feel and hear the
> lockup groaning,   desired matches actual lockup apply on the scanner,  its
> like the computer isn't telling it , or letting it go to full lockup ?
>
>     I had them pull the valvebody and I checked it over, all checkballs
> correct,  solenoid switch valves replaced using the transgo valves,  new
> dealer solenoid assembly,   I'm kind of at a loss on this one,  I wanted to
> replace the tcc reg valve, but the only option is a Sonnax oversize and I
> don't have access to the reamer for that
>
>   This post from years ago describes exactly what this one is doing,  but
> there are no tsb's that apply to this vehicle
>
>
> https://www.trnw.net/trnw/fixdata.php?input=42RLE&aname=17558&confirmed=no&threadID=42RLE-32&cat=tcc#tcc
> <https://www.trnw.net/trnw/fixdata.php?input=42RLE#content>
>
>    Steve
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-- 
Richard Wardell
owner Quality Transmission of Bartow county
1640 JFH PKWY Cartersville Ga 30121
770-315-2544

*In a world full of self centered shallow people, think for yourself, be
kind and generous.  You will take nothing with you and your children will
waste what you leave behind!*
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