Did you try b'laster penetrating oil? It is probably rusted in. A ring of rust forms against the o-ring, it probably will not come out in one piece. You will be able to rotate the TSS in the hole after blastering it. It will break, I had to drill a hole in the center of the tss, put a screw in it and pull with a hammer claw, repeat until it comes loose, after pulling copper windings, etc. The magnet is very hard to drill through! Then I had to use a hook to pull the loose piece out that wanted to fall inside the trans...I would try something else, like changing the transaxle fluid, first. That helped me more than the TSS did. The old fluid gets grabby. Maybe a shop could do both the TSS and the trans flush. I used Mobil 1 ATF, it should last.
