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Old 04-26-2013, 10:09 PM   #5
clinebarger
Senior Member
 
Join Date: May 2009
Location: Fort Worth, TX
Posts: 6,370
Re: 4L60E shift issues.

Do Not mess with the EPC adjustment, This will increase line pressure across the board. Do Not alter max line pressure in the PCM either (+/-90 psi on a 4L60E). Torque management and/or Traction control can cause weird shifts if not tuned correctly.
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