Last weekend i put in a new tranny cooler the B&M Hi-Tek SuperCooler and it works great keeps the tranny under 180 in Las Vegas and its about a 100 degrees outside now and just getting hotter, but before all this my TQ converter would seem like it slipped alot especially in overdrive and then it would kick on the od light and make it flash. Now after the new cooler the problem seemed to go away no more light no more hard shifting from the tranny going into limp mode, kinda weird but i think its great just wonder if anyone knows why this could or would happen?

 

imo you just happened to do this at a time when the trans is marginal for the effects of heat.
I would expect problems again later on as the wear gets to that point again.
Your just holding it off longer but it does show the effects cooling has.
You should have got the code so you know what fault is waiting to come again, for repairs.
Again just an opinion because a fix of that type is suspect for the longer interval once it has already happened.