Originally Posted by
ssmotors
I've got a 10RStager on my 2018 F150. Transbrake is operating correctly. It holds good and bump works great. Issue is when I release transbrake, the 1-2 shift is severely delayed. If I light throttle it after release, it takes about 5 seconds to shift. If I try to WOT it, it will hit limiter. I've turned off the codes recommended by True Motorsports. They are telling me to use Lund or Juggernot. I've logged every PID in the Transmission side and really don't see anything causing it. It simply delays the commend to shift to second.