Hello, I have a 94 f-150 2wheel drive 4.9L with the mazda trans. I went through the process of replacing the clutch and slave. All went well untill I tried to bleed the new slave. I opened the bleed screw and waited until the fluid ran without air. closed the screw and pumped the pedal 50 times as told in the manual. The pedal didn't feel right so I though there still was air in the system so I open the bleed screw again and some fluid came out and stoped. Now I can't get ANY fluid flow through the slave. All connections are good and every thing seems to be right except gravity! Any help would be greatly appreciated

 

You may have a blockage in the bleeder valve. Have you had someone depress the clutch while you bleed the clutch?

 

The master cylinder is airtight - you have to remove the cap so fluid can drain down. Be SURE to remove the rubber diaphragm BEFORE adding fluid!

 

Found this thread, thought this might help,