Kung may kaldag yung shifting nung gear, valve body. You need to replace it. I had that problem also ford lynx 2001. Kahit anong palit mo ng atf hindi sya maayos. Nung pinalitan namin ng valve body nawala na yun kaldag from 1st to second and second to 3rd. Tpos meron ulit pag downshift. Nung january ko pinagawa until now ok pa sya smooth pa rin ang takbo.