i have a 2006 infiniti G35 coupe rwd and when i first bought it it had a burned clutch it was like a rolling shell. i replaced the clutch and after that the car did not go into gear!
if i tried going into 1 i would have to use massive force to get it into 1 and then it would be hard or almost impossible to get to neutral . and then from neutral it wont go into gears at all
so i replaced the master cylinder and slave cylinder on the clutch and then the issue was fixed.
now its doing it again less than 5000 miles later...
car wont go into gear, if i try to go to reverse it grind gears hard.
from what i know it could be the clutch, the slave cyl or the master cyl.
but how do i find out which one? i dont want to replace all of them right now if only one is faulty, how do i check it and what should i do to resolve the issue if the parts are less than 5000 miles on them? maybe i dont have to replace it?
any info would help. thanks

 

With the engine not running will it go into gear?

If so then something isn't releasing the clutch, start by re-bleeding the hydraulic system.