Well after paying $1650 for the tranny "rebuilt" and having the car buck when i was coming to a stop i took it back to the shop and 4 days later they replaced the ICAV and the TPS and now the problem seems to be gone , car shakes a bit when coming to a stop but it's probably because the brakes need resurfacing ,but bucking problem and high idle with the ac on seems to be gone at last. ...