Cannot get through these brake problems!!!! Someone Help ME!!Please

[natedog437]

Well here is my story really quick. I replaced all of my rotors with cross-drilled rotors and upgraded my break pads. Well while everything was being taken off I decided to paint my calipers. I ended up letting all of the fluid drain from the system and apperently messed up the master cyclinder by doing so. I took it to a mechanic and he replaced the master cylinder and bled the breaks, but the break pedal still felt mushy as hell(it would stop, but it was incredibly mushy). He said that the seals were going bad in my rear calipers and that he kept having to reset them, so I would need to get some new ones soon. Well, I thought that he was just lazy and didn't get all the air out. I went and bled it, (master cylinder, passenger rear, driver rear, passenger front, then driver front, and there was absolutly no air in the lines. I decided to replace my rear calipers because I figured that could be the only problem since I knew the front ones were working, I didn't have a bad master cyclinder, and there wasn't any air in the lines. Well I replaced, then bled the whole system and the pedal is worse than it was before! The E-brake makes the rear have tension, but there is absolutly no pedal. There is no air in the lines either. Did I break the master cyclinder again? What could be the problem? The master cyclinder never got dry, and I never got dry. I seriously need some help because I am about to drive my 240 off of a cliff!(without breaks I probably will )

[AJ1356]

the same happened to me once, where i had to replace the master . basicallt a regular bleeding wont work , i took to mech and they did a core bleeding and everything worked afterwards.

[natedog437]

The thing is he already did that when he replaced the master, but the pedal still felt kind of crappy, so I went ahead and replaced the rear calipers because I thought those might be bad.

[Bruno240]

well now that u replaced the rear it needs to be core bled.

[natedog437]

Well how do you do a core bleed? How different is it from a regular bleed all the way around?

[Ubernoober]

http://www.misterfixit.com/brakbld1.htm

http://www.phxsyss.com/Bench%20Bleeder.htm

http://www.advanceautoparts.co....html