I am getting either intermittent harsh shift or slippage until operating temperature is reached from 1 > 2. I have a 3.4L 2003 Impala with a 4T65e trans.
I have 88k miles, filter and fluid have never been changed. Have done a few WOTs and broke the tires loose for about 10 seconds at a light by stomping on the gas, that is about it.
I read a story awhile ago about some or all Fords use the MAF to aproximate when to shift and cleaning the MAF corrected sort of a shift scenario possibly like mine. I have also included my latest hpt file I flashed . Could it be my tune, burnt cluth plates, solenoid, engine controls ????
I have no ideas
oops I am on my pc, need to switch over to my notebook to send the hpt file