brakes quit cant get fluid out of the bleeders

westridez · 12-13-2004, 01:55 PM

i just converted a 84 into a 89 and i changed over the whole brakes including the master cylinder,booster ,calipers and proportion valve ect. i never blead the system but i did have a lil bit of brakes enough to stop the car if they were pumped but now they completely quit and i cant get hardly any fluid out of the bleeders and the fluid is full could it be the proportion valve?????????

Lethal5Oh · 12-13-2004, 11:04 PM

Try loosening the hard brake lines from the flexible line and see if you get any fluid out then. If so your flex lines and broke internally. If you dont try going farther up in the system till you get fluid. When you do finally get fluid to come out youve found the block. Another possibilty is the the master is internaly bypassing. Maybe bad seals on the piston. good luck

Capri306 · 12-14-2004, 12:36 AM

I agree completely with Lethal5Oh, with these additions:

It doesn't take much crap to plug the system, that's for sure. Even a little hunk o' gunk in the proportioning valve...no, wait, especially a miniscule hunk o' gunk in the proportioning valve can screw it up. The passages in there are small, so if you don't get fluid up to there, you may have to tear it down & rebuild or at least clean it thoroughly using brake fluid or brake parts cleaner ONLY (anything else will degrade the rubber in the system). That's assuming a functioning master cylinder....speaking of which, since a master cylinder is so cheap, why the fudge didn't you just replace it with a new one, considering how cheap they are, and how old the one you're working with is???

westridez · 12-14-2004, 01:44 PM

it was the master cylinder i had a spare one on my parts car its wierd that it worked fine one day and quit the next

88fivepointoh · 12-14-2004, 03:14 PM

I am not suprised... Thats the way everything is, breaks mysteriously. Glad you got it all set though.

12-13-2004, 01:55 PM	#1
westridez Registered Member Join Date: Oct 2004 Posts: 48	brakes quit cant get fluid out of the bleeders i just converted a 84 into a 89 and i changed over the whole brakes including the master cylinder,booster ,calipers and proportion valve ect. i never blead the system but i did have a lil bit of brakes enough to stop the car if they were pumped but now they completely quit and i cant get hardly any fluid out of the bleeders and the fluid is full could it be the proportion valve????????? __________________

12-13-2004, 11:04 PM	#2
Lethal5Oh Registered Member Join Date: Jun 2002 Location: Portage Posts: 239	Re: brakes quit cant get fluid out of the bleeders Try loosening the hard brake lines from the flexible line and see if you get any fluid out then. If so your flex lines and broke internally. If you dont try going farther up in the system till you get fluid. When you do finally get fluid to come out youve found the block. Another possibilty is the the master is internaly bypassing. Maybe bad seals on the piston. good luck __________________ '95 GT convert. K&N, C&L mass air meter, Performance distributors sreamin demon coil, dyna mod, live wires, king cobra clutch, flowmaster american thunder exhaust, UPR billet adjustable shift handle, Crane Cams Fireball HI-6 box,underdrive pullies, 255lph fuel pump, UPr short throw shifter, caster camber plates, 03 cobra lower A arms, bullit suspension, cobra front brakes

12-14-2004, 12:36 AM	#3
Capri306 Moderator Join Date: Sep 1998 Location: Grand Rapids, Michigan, USA Posts: 1,001	Re: brakes quit cant get fluid out of the bleeders I agree completely with Lethal5Oh, with these additions: It doesn't take much crap to plug the system, that's for sure. Even a little hunk o' gunk in the proportioning valve...no, wait, especially a miniscule hunk o' gunk in the proportioning valve can screw it up. The passages in there are small, so if you don't get fluid up to there, you may have to tear it down & rebuild or at least clean it thoroughly using brake fluid or brake parts cleaner ONLY (anything else will degrade the rubber in the system). That's assuming a functioning master cylinder....speaking of which, since a master cylinder is so cheap, why the fudge didn't you just replace it with a new one, considering how cheap they are, and how old the one you're working with is??? __________________ Capri306, Moderator The Mustang Works Online 1979 Mercury Capri 1987 5.0L Mustang LX Notchback 1993 5.8L Eddie Bauer Bronco

12-14-2004, 01:44 PM	#4
westridez Registered Member Join Date: Oct 2004 Posts: 48	Re: brakes quit cant get fluid out of the bleeders it was the master cylinder i had a spare one on my parts car its wierd that it worked fine one day and quit the next __________________

12-14-2004, 03:14 PM	#5
88fivepointoh Registered Member Join Date: Aug 2002 Location: Rochester Posts: 553	Re: brakes quit cant get fluid out of the bleeders I am not suprised... Thats the way everything is, breaks mysteriously. Glad you got it all set though.

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