I have a 2003 C5 with a level 5 4l60e 3.90's and a PT4000. The trans builder created a lazy lock-up and said if I wanted he would firm it up. He's been around a long time and has now disappeared. I'm planning on trying the following to firm the lock-up. I'm not planning on locking under WOT, this is for street driving.
TCC PWM min duty cycle: Raise values 20% at a time. This should firm the lock?
TCC pressure apply rate: Raise 10% at a time. This should speed up the apply?
Does this sound right and is it safe?
Thanks
Joe
