any tranny guys out there please help,my 4l80E when cold, put in gear doesn't matter d or r the car tryies to take off like tcc is locked hit the brakes chokes out and dies like standard shift ? let it warm up for 5 min works great,last time at track after a 3-4 passses i got in it to leave and it would not take any gear,let it run for 5 min took gear drove 80 mile home no prob,fluid smells good,fluid level good? have put 6-8 thousand on tranny doing this. thanks for any help