testing tcm

  1. bigalpha

    AW4 does not shift - help me finish troubleshooting

    1995 XJ, AW4 - When in 'D', the tranny defaults to 4th gear. - I can drive it and manually change the gears from 1-2, 3, 4. - 4th will downshift to 3rd if I goose the throttle. - I can drive the Jeep with the computer unplugged. - Replaced TPS with new - tested with meter; meets voltage...