Hi all,
I know there has been alot of discussion on this one. I just want to put down my thoughts. I find on my C5, if I shift by fully levering up from 3rd to 4th, more often than not, it goes into neutral, the neutral I suspect between 4th and 5th. If I gently tap down by half, it goes into 4th.
What I find works best and always results in good shifts into 4th is to;
1) Pull clutch fully in,
2) Lever up with your foot, but stop as soon as you feel (on your boot) and hear it go into 4th gear.
3) Release clutch.
I find you don't have to lever up fully to the end of the shift levers travel to get it into 4th.
Btw, 4th gear is the only where I've had trouble getting into.
Cheers