Replaced everything, Clutch pedal still go's to the floor.?

Question

Had a problem a while back. Clutch pedal went straight to the floor. Come to find out after taking tranny down that the clutch fork had slipped off the pivot ball. We replaced the clutch anyways. Got that taken care of and put the tranny back in, clutch pedal still go's to the floor. We Bled the system. Still nothing. I replaced the clutch master cylinder, and slave cylinder. Bled the system again. Still nothing. Have fluid coming out of the slave cylinder with no bubbles at all. There seems to be no pressure at all coming from master cylinder down to the slave cylinder, but i have fluid. I can push the rod into the slave cylinder and have someone press the clutch, and it still go's to the floor, with no resistance on the clutch pedal, or at the slave cylinder. I'm stumped. This is on a 1990 GMC K1500 4x4 pickup. Any help would be greatly appreciated.

For tronary
What I mean is the slave cylinder has a rod that go's into it, this rod is used to engage and disengage the clutch. Understand?

Answer 1

From my experience you my have air in the system, I have found that a vacuum bleeder works the best,manual bleeding just don't work on that system. you should have an inch/half travel on the slave rod with peddle to the floor, if you have that then you my have a parts problem some aftermarket disks are thicker then stock oem and will cause the pressure plate to compress further than stock.I hope that helps, your always ahead if you get a factory manual that will give you the info you need on the correct operation and specifications and buy oem parts they cost more but they work right .

Answer 2

Hey Slammer. I feel your pain. Been there. There is air in the system somewhere. What I have discovered after a few of these causing me grief is the tube going down to the slave allows air to suspend in the line and the fluid runs by it. No matter how hard you try the air wont move. Is there a bend in the line as it goes down to the slave that could trap air? Dont pump the pedal quickly at any time. This can create bubbles that will need to settle out. What I have done is to try to shake any bubbles back up the line to the master. Just make sure the line cant trap any air on the way back up and tap it gently to shake the bubbles up. Take the lid and the rubber off the master when you do it. Hope this helps you out.....Good luck with it.
O ya...make sure you use brake fluid only

Answer 3

You push the rod into the slave cylinder and have someone push the clutch and it goes to the floor, with no resistance on the pedal or at the slave cylinder ??? what does this statement mean ?? Do you know how to bleed brakes ?? These statements don't make sense to me.

Answer 4

Try bleeding the clutch. Sounds like there is air in the lines?

Answer 5

sounds like you drive a piece of ****