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Old 06-03-2020, 04:05 PM   #6
Bohanan23
 
Drives: 2016 Camaro 2SS A8
Join Date: Dec 2019
Location: Moore, OK
Posts: 113
It's the trans fluid. Update the fluid and I'm willing to bet the shudder will go away. I definitely wouldn't be tuning currently if you're having trans shudder. Leave ECM/TCM untouched until you resolve it.
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