pcm causing slip?

just got out of work tonight and drove home. the car was cold and when it is i leave the shifter in 3 so shift to overdrive wont kill the motor. well over drive shift happens at 45 and the car seemed like it wanted to shift into od while the shifter is in 3. it flared only acouple 100 rpms not much. my foot to pedal was light n it flared for a lil and came back happened like three times. there was no change in engine noise on any of the slips. when i got home i went through the gears one by one and they were nice and hard. im guessing electronical. like tach is going, pcm causing slip for ride quality. i figured the cold has something to do wit it. anyone have ideas????

Why leave the shifter in 3rd? I mean really?...

i useually drive around town at 40-45 and od kikkin in bogs down power and its clutch wear. on a cold start i dont let the car go in to od until the car is up to temp.

i found this so if anyone has any tranny issues look here http://www.tripleedgeperformance.com/4T65E_Transmission_Info.html

... lol

English? Punctuation? It's probably because it's cold.

What do you mean by flared, as in your rpms were surging up and down? If so, that'd be your torque converter. Common problem with our trans.

ya it surges about 100-300 rpm, ill stall test it

yup thats it!! the stall test failed it reved up to 3k