TRNW-2: 42rle never goes past partial lockup

[jbockus at hiwaay.net]

If the EMCC has been reset, You can go back with your scanner and undo 
it. We only do the VLP counter reset.

On 2025-09-17 7:04 am, Steve Everett wrote:
> There were no codes of any kind in the system, which is another
> reason I assume the computer is commanding what is going on ?   I did
> not do an emcc reset myself,  I'll have to ask the diag guy if he did
> that prior to me getting involved in it,  to answer someone's question
> I don't believe either scanner we used gave us the option of a tcc
> slip speed ?  but I'll double check that after I get the valvebody
> back on the vehicle
> 
>    Steve
> 
> On Wed, Sep 17, 2025 at 7:24 AM <jbockus at hiwaay.net> wrote:
> 
>> 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]
>>> [1]
>>> 
>>> Steve
>>> 
>>> Links:
>>> ------
>>> [1] https://www.trnw.net/trnw/fixdata.php?input=42RLE#content
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> 
> 
> Links:
> ------
> [1] 
> https://www.trnw.net/trnw/fixdata.php?input=42RLE&aname=17558&confirmed=no&threadID=42RLE-32&cat=tcc#tcc