my automatic car wont change gear up! i was driving in a freeway while merching and it wont change gear up! i cant speed up! i step the gas all the way and it wont go pass around 35! it was embarrassing for the cars on the back! the car seems that it dont want to up gear in so fast. it drives fine when going normal street slowly step on gas and it change gears fine but when in freeway when you enter or merching... you gotta speed up but the car wont change gear! another problem i notice is that when gas is low.... when stepping on gas it sometimes feels like in neutral like going Vro0n vro0n but no speed for a couple second. can someone define the situation? gotta be something with transmission? how much will it cost to fix? is it a major propblem? is it easy to fix that i can fix it myself? ect.... only got the car for 900 and this problem must be why its so cheap.