Hows it going everyone alright so in one of my last posts i wrote that i just bought an 04 g35 coupe 6mt with 130k so today i decided to do my slave cylinder being that the fluid was black and the slave itself looked really old so i figured let me replace it and change out the fluid so being that ive done plenty of slaves in the past this shouldnt be difficult loosened the bleeder drained out most of the fluid took off the line unbolted and then bolted up the new one added fluid and as soon as i started to start to bleed it the pedal snapped right to the floor no pressure at all fluid is comming out of the bleeder but no matter what i do i cant get any pressure any help would be much appreciated this is my daily

 

If you completely opened the lineset there will be a LOT of air in it and you'll have to have a second person depress the clutch while you loosen the bleeder probably 10-15 times before you get fluid out of it.

 

Update gravity bleeding was the only way i let it bleed for an hour then shut the bleeder and let it sit for an hour then i pumped the pedal up 20 times then cracked the bleeder open again for another hour this time i went and tapped the slave and master with a wrench and shook the car to lossen up any air bubbles tightened the bleeder again and the clutch seems to be good now im holding pressure

 

I replaced mine a couple of months ago and had the same problem with the pedal going to the floor. It would stay to the floor after bleeding three times (with a Motive Power Bleeder) and no air in the lines. The trick is to be patient. I pumped like 50 times and it was still stuck to the floor. I came back later and started to pump by hand and started to get pressure after about 80 total pumps. Eventually, the pedal came back to it's neutral position and firmness. My G is only used for autocross and driving events and it's been fine since. Flush with Motul RBF600 and change at regular intervals. Good luck.