Originally Posted by illegal regal
ITS RETROFITTED SO WILL THE LOCKUP SETUP HAVE ANYTHING TO DO WITH IT?
Lockup wont effect the shifting, just whether or not the TCC locks. TV cable will. If the cable is too tight it creates a high pressure situation like when the trans is at WOT depending on throttle valve position. If the TV valve is stuck or sticking it can also cause high or low pressure depending on TV position and cause it to not shift, shift at too high rpm or shift way too early.