The TP sensor suggests the throttle plate angle. If the driving force accelerates to huge-open up throttle, the TCM disengages the TCC to downshift. Now you may attempt to use the travel gear. Hear carefully if you can hear any indications of sounds in the torque converter. A torque converter https://jeffreyvkykw.laowaiblog.com/32979353/the-fact-about-torque-converter-clutch-that-no-one-is-suggesting