brakes not relieving pressure??

[rapedbytheeves]

so ive had problems with the brakes ever since i got my 1990 eagle talon tsi awd 3 weeks ago, blew a line so i replaced it and bled the brakes all the way around. they seemed like they didnt have enough fluid in them at first since you could push the brakes all the way down pretty much before they would engage. but now, they act normal for about 10 minutes and then get stiffer and stiffer, tell there is no play at all in the brakes. Then start sticking to the calipers and get super hard to push down. i eventually have to pull over, crack one of the brake lines on the proportioning valve, after that they work for about a half hour then start to do it again. the whole process repeats istelf. i also noticed before i started cracking the lines every now and then that my brake reservoir would be low after i filled it up the previous day. seems like it gets worse when i add the fluid to get past the low mark. idk where its going i dont have any leaks i dont think. theres never any fluid on the ground. i know its not a sticking caliper because the caliper would stick after i cracked the line open. they do not. it seems like the pressure just keeps building up and up and up until the brakes stick on. anyone got any ideas?

anyone?

 

[rapedbytheeves]

i will for sure!! ill probably be doing this within next few days or so when i get some extra time