I was wondering if anyone new of a solenoid or sensor that can go bad causing the torque converter not to lock up all the time. I know a lot of you will say the TC is bad but I think it may but be a sensor or solenoid of some sort because it does work about 3/4 of the time but on occasion it seems like the tranny shifts striaght from 3rd to overdrive and no hesitatiion for the TC unlocking.