So i was shifting really fast last night from 1st to 2nd. After i came out of 2nd i couldnt get into any of the gears! If i rev up and force it into gear it will go in sometimes, but it grinds. When i have it in gear and hold down the clutch and try to start it, the car jumps forward as if the clutch isnt disengaged. Any clue guys? Once it gets in gear, it drives fine without any noises. Just getting it in gear while the car is on is well, almost impossible.
Thanks
Fadi

 

Clutch!

How many miles on the stock clutch?

 

is it almost as if you are trying to shift without a clutch while you shift? ... The way you describe it sounds as if you dont have enough distance between the slave cylinder and the little "push rod". I had to put a little brass spacer in my neighbors G35 after putting an aftermarket clutch in and it had the same symptoms... if your trans is gernaded try draining the fluid and seeing if there is any metal in there.

Check master cylinder too if there is enough fluid in there.

 

+1 on clutch.
Check the clutch fluid first and work to more difficult from there.

 

clutch fir sure