It sounds like the shifter is out of adjustment if I am reading this correctly. This can cause shift issues because the manual valve in the transmission is not seated in the correct location which will not direct the fluid to the correct location inside the transmission.
Go through the adjustment procedure first and then retest the transmission. If there is still an issue we can go from there. I attached the procedure for both transmissions because I don't know which one you have.
Let me know if this makes a difference or give me a little more info if I am not reading this properly. Thanks
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Friday, April 26th, 2019 AT 4:59 PM