honda jazz gearbox problem.......
 

Hi all,
I have a Honda Jazz Vtec 2006, I am encounter the gearbox jerking problem... went to SC, come out with some problems that cost me a lot. They advise me to change few items, but also don't know it will help or not?
1. The start gear,
2. Manifold intake,
3. Fly wheel.
4. The worst case, the Gear Box (20k++)
5. EGV intake valve (already change, no improvement)
Is there anyone have the same problem?
It happens in morning or the engine is still cool. Stop in car while still in D position, the rpm suddenly drop to very low, 0.3 I think, and if you push the acceleration, it won't move, also there is a loudly knocking sound, and the car is jerking heavily, like someone hit you from behind....
Please advise.