NOT KNOWN FACTS ABOUT GEARBOX CVT PROTON

Q. If the vehicle relates to a end (in the slow down/deceleration), i can listen to a really apparent buzzing audio. If i change to neutral, this sound will go away instantly. The noise is also apparent in the event the motor vehicle is downhill with motor braking.[With all the massive adjustments, VVT is properly a whole new engine fully itself, n