Amsoil ATF TSB- Chrysler

[buster]

https://www.amsoil.com/dealer/techservic...%20Shifting.pdf

Quote:
RECOMMENDATION:
AMSOIL INC. has determined that the problem with hard
shifting evident immediately after servicing Chrysler automatic
transmissions with AMSOIL ATF is due to the transmission
control module record of the mechanical service. Failure to
reprogram the TCM flash memory following automatic transmission
services will result in the outlined performance issue.
AMSOIL Synthetic Universal Automatic Transmission Fluid
(ATF) is formulated to exceed the performance requirements
for domestic and foreign automatic transmission fluids, and it
is recommended for transmissions requiring MOPAR ATF+
type oils, including ATF+3 (MS-7176) and ATF+4 (MS-9602)
fluid specifications required by Chrysler, Jeep and Dodge, as
well as many other domestic and foreign specifications.
AMSOIL INC. recommends having the TCM flash memory
reprogrammed (flashed) or the Quick Learn procedure performed
after servicing any Chrysler, Jeep or Dodge automatic
transmissions from the year 1992 to present. Per Chrysler, the
Quick Learn procedure recalibrates the electronic TCM system
to provide the best shifting operation. Quick Learn must
be performed by the dealer or transmission repair shop using
the DRBIII scan tool and scan tool cartridge. The procedure
will correct and prevent the abnormal shifting issues that occur
when servicing automatic transmissions. This procedure, and
the solution to remedy the shifting problem, cannot be accomplished
just by disconnecting the battery terminals

 

[Johnny]

Well, maybe that explains my darn problem. Thanks buster.

 

[Donald]

And how much does this cost? I assume once done and if one stays on Amsoil, that will be it?

 

[Gary Allan]

This should take care of itself ...sooner or later...aka slow learn.

 

[thatguy]

Originally Posted By: Gary Allan
This should take care of itself ...sooner or later...aka slow learn.


I am just getting ready to switch my '02 Dodge 2500 over to amsoil ATF so I read this with interest..

Just what is 'slow learn'?

Does it do any harm to the transmission before it 'learns' or you have it flashed?

thanks
Brian

 

[artificialist]

You could just disconnect your battery terminals for a few minutes, until the transmission control module forgets the trim settings, and learns new ones right away.

 

[kingrob]

From what I understand, though "flashing" will nip the problem in the bud, you can do a slow learn procedure Gary mentioned above. Unplug the battery for about twelve hours plug it back in, and over a period of about 1200 miles the ECM should re-learn your shifting data.

 

[thatguy]

The TSB from Amsoil listed above says disconnecting the battery will NOT help the problem..

Did anyone find that to be incorrect?

thanks

Brian

 

[bdcardinal]

so just to clarify, a fluid that meets specs requires a tcm reflash to work?

 

[thatguy]

Originally Posted By: bdcardinal
so just to clarify, a fluid that meets specs requires a tcm reflash to work?


That is what I was thinking as well.. Wonder if it is because it is so 'slippery'??

Thoughts anyone??

Brian

 

[The Critic]

Originally Posted By: thatguy
Originally Posted By: bdcardinal
so just to clarify, a fluid that meets specs requires a tcm reflash to work?


That is what I was thinking as well.. Wonder if it is because it is so 'slippery'??

Thoughts anyone??

Brian

Yeah, doesn't that make you really confident about using it?

 

[Gary Allan]

The issue can be present with any fluid change where the replaced fluid has a loss of visc from virgin.

The geniuses determined that consumers "demand" velvety smooth shifts. The OD engagement actually measures the amount of fluid that it takes to engage and compensates for wear. I haven't seen the actually mechanism ..but it was almost described like pads or shoes. Replacing these items w/o the quick learn has the OD banging when it engages for so many engagements.

When pressures are altered in relation to other inputs, the TCM shifts in a different manner for a while.

It allegedly just takes a while for the TCM to integrate the alterations due to the new fluid.

This is what I integrated from a trans shop chat. I can't speak ultra intelligently on it at this time ..so there may be some spanking from someone more well acquainted with it.

 

[Pablo]

Originally Posted By: The Critic
Originally Posted By: thatguy
Originally Posted By: bdcardinal
so just to clarify, a fluid that meets specs requires a tcm reflash to work?


That is what I was thinking as well.. Wonder if it is because it is so 'slippery'??

Thoughts anyone??

Brian

Yeah, doesn't that make you really confident about using it?

That's helpful and well, wrong. New fluid of the Chrysler does require the quick learn also in many cases.