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RE: 97 Cherokee transmission service
Was it doing this before you changed the fluid? Are you checking fluid level, idling in NEUTRAL cause in park always shows full? I watched a complete teardown of your tranny on youtube and way too many parts for me. It is a Toyota trans and used in the Tacoma. I have rebuilt engines but never been ambitious enough to do do an automatic transmission. Nope, not doing that.
Yes, fluid levels were good. Was driving it then all the sudden its like it wasnt downshiftin when put in drive. I stopped at a stop sign then when i went to take off it wouldnt go. Dropped it down into 1st 2nd and it went.
Thanks for the symptom with what it was doing. I looked that up and is common on Jeep cause lots of people with a no downshift trans issue. You also need to check the TPS throttle position sensor for proper voltages with a voltmeter as this controls the tranny shifting. The TPS voltages are into the ECU not the TCU trans controller. Also found a few links you should read.
https://www.wranglerforum.com/f282/transmission-wont-downshift-help-817970.html
http://midsouthjeeps.com/forum/topic/260-automatic-transmission-wont-downshift/ this is about a plugged vent hole (plugged with mud)
https://www.jeepforum.com/forum/f310/won-t-downshift-stop-1201294/
governor pressure solenoid and sensor, under filter tray that you just did
So this is 3-4 more things to check. Lots of other people have had this problem too. good luck.