Need help with hoses

[Way2drunk2walk]

Hello to all.
I am having a problem getting hoses to work properly(or at all). I exported some hoses from a I3d, put them into blender, adjusted the hoses to meet up with another part I had previously modified, and exported from blender back to a I3d. They look fine but when I put it in game the hoses do not move with the moving tool.
I have no idea what to do to make it work and google is just recommending mods. Hopefully someone on here will be able to help. As always any and all help will be greatly appreciated.