I just picked up a 90 F250 7.3 with E4OD. Its stuck in 2nd gear when its in drive, the tach does not work, and the OD light stays on. I can manually put it in first. I have checked all the fuses under the dash and cleaned the wire connector that is on the side of the tranny by the shift linkage. Still no fix. Any suggestions on other things to check. I read something earlier about a tach sensor, i plan to check that but im wondering if there is another fuse or Relay i dont know about.