I’ll have to see the trigger requirements to set code 37.
Launching the truck from a stop shouldn’t involve the lockup circuit so I’m puzzled what the launch miss could have to do with the converter.
Overdrive intermittently applying - there are several things that have to happen for OD. No Park or Neutral signal from the PRNDL switch, no brake pedal switch signal, no overtemp trans fluid signal, ambient temp and water temp sensor signal has to be above 65 degrees if I recall, may be others.
If you do a stall test, is there ever any missing?
You might want to ask around and see if any dealers will do a data recording when it act s up, we used to have a device called a Co-Pilot that recorded about 45 seconds after an event. Was very useful in this type of thing.
