HELP: Random Braking Problem

[THUNDA]

Hey all

Just bought another legacy (1993 BF5)

And the brakes randomly play up every now and then

i.e, after sitting at a set of lights with your foot on the brake, you release the brake pedal but then when you drive off it feels like the brakes havn't released properly, and once they start "not releasing" it gets to a point (over like 1minutes) where the car is no longer movable without risking engine damage.

I simply pop the bonnet, undo one of the brake lines that comes off the master cylinder (forgot what its called but maybe proportion valve? maybe not though lol, have circled in photo but i cant get a better photo than that), it squirts out immediately (under alot of pressure) then I tighten it back up and away it goes again, brakes work perfectly other than this and it comes on at random times, has only happened twice since owning it.

anyone got any ideaS?

[EJ20T]

id say the master cyl is seizing or the p valve is faulty internaly, next time try cracking off the master cyl first, if squirts at that end its likely seizing

[DRFVDR]

yeah master cylinder not releasing,

try what was mentioned if it gets better,I would suggest a rebuild of the master cylinder

[Guest]

check pedal free play