TRNW-2: 42rle never goes past partial lockup

[jbockus at hiwaay.net]

Did you do the EMCC reset? I believe when you do, it won't go to full 
lockup until the torque converter clutch is "broke in", I quit doing 
this feature years ago because I figure most converter rebuilders are 
using a use clutch anyway? And I had converter shudder problems when I 
did it?

On 2025-09-17 4:56 am, Steve Everett via trnw2 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
> [1]
> 
>    Steve
> 
> Links:
> ------
> [1] https://www.trnw.net/trnw/fixdata.php?input=42RLE#content
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