Hello, I am new here and in search of advice regarding my 4T65E trans. I actually drive a Montana, but I find little help on other forums, and this one seems to have a lot of knowledge and activity regarding this trans. However I can't find an answer to my problem/question in existing threads. I want to know if the improvement in line pressure you would get from adding a shift kit would secondarily cause a more positive engagement/transfer of power at the torque converter due to increase in "line pressure". Mine just hit 250k miles and since I've owned it has always seemed to have a laggy/weak torque transfer. Not sure I'm explaining this right...the RPMs required to get the thing up and moving is higher than other vehicles I've owned, including my previous vehicle which was a Venture that had same motor and the 4T60E, which was super quick even @ nearly 200k miles. Along with the laggy, higher-than-normal RPMs on acceleration, the shifts occur at much higher RPMs than they should, and they are the slow, delayed shifts which sometimes then become hard. I am fully aware of the 1811 code and related issues. So would it be worth trying a shift kit? Could it help? I'd appreciate some expert insight. Thanks!
