It won't up shift between those speeds, I"m pretty sure it only goes through the first gear and the second is the one that has the problem. Sometimes she's responsive and sometimes she's notI just got a gauge to test the transmission in hopes of narrowing down the issue, have you ever done that before? I know I'm not supposed to run the test for longer than 2 minutes and the car has to be at running temperature, anything else I need to know or can do???