lwood240z Posted April 24, 2010 Share Posted April 24, 2010 I recently dropped my suspension on all four corners to replace bushings and what not. Everything is back together and now my brakes have gone to crap. I looked through a lot of threads and could not find sufficient info. to solve my problem. I replaced the MC and have now bled my brakes enough to go through three bottles of fluid, I bled the MC itself and all four corners, spit streams of fluid out just fine, no air. When I turn the car on, the booster sucks all my pressure away and my pedal is spongy until just above the floor, just enough to barely stop. Does any body have any ideas on what is wrong. Also, I had tons of brake before took it apart. Quote Link to comment Share on other sites More sharing options...
at-jefft Posted April 25, 2010 Share Posted April 25, 2010 did you bleed the MC? Air could be stuck in there. Quote Link to comment Share on other sites More sharing options...
lwood240z Posted April 25, 2010 Author Share Posted April 25, 2010 did you bleed the MC? Air could be stuck in there. Yes, I had actually mentioned that. Even did it a few more times just to make sure, still nothing whatsoever. Quote Link to comment Share on other sites More sharing options...
19762802+2 Posted April 25, 2010 Share Posted April 25, 2010 Did you bleed it while the car was running? Not saying you didn't, Just to make sure. Quote Link to comment Share on other sites More sharing options...
lwood240z Posted April 25, 2010 Author Share Posted April 25, 2010 Did you bleed it while the car was running? Not saying you didn't, Just to make sure. No, never have before and never had a problem until just now. It used to take a couple times around the block to get the pressure back. This time I have bled, and bled, and re-bled every bleeder screw that is possible. So, I guess I need to know why I have pressure with car turned off and when it is on, the booster seems to suck my pressure away. The one-way valve in the booster line is fine and the booster holds pressure until you release the vacuum.So the booster is holding pressure, I bled the Master Cylinder and all corners, no air came out, bought a re-manned Tokico Master. Is there something I am missing in the process, or any other ways to figure out the problem. Quote Link to comment Share on other sites More sharing options...
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