my 2005 Mazda6 V6 was in a car accident lately and it was hit in the front left side and i had to change the reinforcement and two radiators and the fans mostly and when i fixed it i took it for a spin and noticed that it wont accelerate fast any more and on the gauge it shows its on third gear and any time i start my car and put it on revers it jerks badly and when i put it on drive it also jerks and it says its on third gear and also the gears wont go up or down if u try doing it manually ....