Thank you everyone for response on my concern topics, I have tried shifting as tta300 suggested, but it didn't work on mine! I guess I should try Brian suggestion on "speed sensor", but i'm not sure this is going to work because the guy he rebuilt my tramission said "speed sensor" has nothing to do with it. They did a scan test and they said my Knock sensor is bad, it might be the reason too! I'm so confused, It cost me alot of money to rebuit my transmission and now every thing seems never fixed and they kept sugesting to changing things that they are really not sure and me neither! Please help!
thanks a billion!
Phong