This is most likely an issue with the pump inside the unit. If you have new fluid and it is the correct level and you can see the shifter is putting it in gear then the issue is inside the unit.
Here is a guide that helps with this issue in general:
https://www.2carpros.com/articles/automatic-transmission-problems
The fact that you have no gears then that means this issue is something that will effect all gears and that is most likely the pump is not creating pressure in the unit.
In order to prove this we need to test the pressure. I am attaching the process on how to do this and replace the pump if this proves out.
https://www.2carpros.com/articles/transmission-replacement-removal-manual
Please run through this material and let us know if you have questions. Thanks
Images (Click to make bigger)
SPONSORED LINKS
Wednesday, July 7th, 2021 AT 8:14 PM