When you refilled the transmission, how much fluid did you put in it? Also, was the filter a bolt on filter? If so, was it properly installed?
If it worked before, either the fluid is low, the filter isn't properly installed, or you missed a seal/o-ring. Take a look at the attached pic. Is the transmission fluid in that range when the engine is warm and running in park?
Let me know.
Take care and God Bless,
Friday, February 19th, 2021 AT 5:37 PM