Okay, so I have a clutch with no pressure. We have replaced the master cylinder, the slave cylinder, the flex line... The push rod in the slave cylinder is NOT moving and we are bleeding it by the book for both the master and slave cylinders. After we bleed the master, we move to the slave and we just aren't getting any pressure to it and the push rod is NOT moving. My Dad has been a mechanic for 40+ years and is baffled. Please help! LOL

 

Not sure what the book says, but make sure the slave is installed with the bleeder up. Then just gravity bleed it with one person pouring fluid in and the other ready to close off the bleeder when all the air is out. No need to pump the peddle.
If this doesn't work, one of your cylinders was bad out of the box, wouldn't be the first time.