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Old 09-28-2022, 07:28 PM   #380
arpad_m


 
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Drives: 2018 Camaro 2SS A8
Join Date: Jul 2017
Location: East Tennessee
Posts: 11,627
Quote:
Originally Posted by ctrlz View Post
This is something that has always interested me. If the problem is hygroscopic fluid causing corrosion and uneven wear of clutch plates, why should it be limited to just the clutches in the torque converter? There are multiple clutches within the transmission itself:
https://atracom.blob.core.windows.ne...troduction.pdf
My conjecture is that the C1-C5 clutches in the transmission are never allowed to slip and sufficient(ly high) pressure is always applied to them, unlike the torque converter clutch that is programmed to allow some slip by default. The shudder, after all, is the TC clutch engaging and disengaging several times in quick succession once the friction coefficient of the fluid drops below a threshold due to the absorbed moisture.

Zeroing out the slip tables in the transmission tune helps with the shudder, and this is probably why.
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