trans shifts wierd

[f250 fx4 kid]

ok so my trnas has started to shift wierd and i threw a code i believe a p0788 s transmision shift soleniod code i believe and once i cleared the code the truck shifted nice and tight again and purred like a kitty.... then i stopped t a buddies house for abot an hr shut her down then started it back up and the truck was doing it agian so then i cleared the code again and it was fine.... so im gunna go ahead and order the suncoast direct drive soleniod and see how she works... now how do i instal that piece?

[f250 fx4 kid]

it is actully a P0766 code sorryy shift soleniod malfunction so i am orderin the suncoast one now how do i replace them ?

[fiderius22]

i have the same code and i believe the solenoids are inside the pan. Drain the pan and then remove the 20 bolt and drop the pan and there they are. Might as well swap the filter while youre in there and clean the magnet and pan really good.