Shift solenoids are on the valve body as is the filter, I would pull the pan, remove the filter and inspect for any pinched wires, also drain out the converter by removing the drain plug on it(if it has one), some don't! Put the truck back together, and put it on a flushing machine, the machine actually cleans the tranny, that's why it's used today! And the Ford manual does say transmission failure can result by using the wrong fluid, but I think after doing as I suggested and reading the codes, you will bo OK.
Post the codes here.
Tuesday, March 23rd, 2021 AT 12:34 PM