Have you bled the hydraulic clutch reservoir? Need to remove any air in line just like bleeding brakes. Check your hydraulic lines also as well as the level in the reservoir.
Ditto ditto (I know I'm just piling on but couldn't resist ;0) )
Looking for a Used T100 in your area?
CarGurus has 44 nationwide T100 listings starting at $2,995.
Search Toyota T100 Questions
Toyota T100 Experts
Related Models For Sale