Ford Powerstroke Diesel Forum banner
lockup o/d cruise problem
1-1 of 1 Results
  1. 99-03 7.3L General Discussion
    i just bought a 99 f250 auto 7.3 about 2 months ago and should be getting my php pheonix chip today but noticed my torque converter will go in and out of lock up around 40mph. If i speed up it will go away but only when im cruising around that speed. The overdrive light worked fine but when I...
1-1 of 1 Results