Brakes

[Anderson]

Alright my brake pedal has no pressure. It won't fall right to the floor, but I have to put it on the floor to make the brakes engage. I replaced the master cylinder and that didn't seem to solve it. I've bled the lines around 5 times tonight. Everytime I do I pump it ten, hold on the tenth, and release the bleeder. The first two times I do this I get air after that its all fluid. It happens with each caliper. On the third set of pumps very now and then I get one bubble. Jess mocked up a type of vaccum system that would only work on the driver's side. On the passenger side I would just get constant bubbles, but the jar would slowly fill with fluid. I need help. I am not sure where to go from here. I am thinking maybe the brake booster needs to be replaced. Its all ate up down the cover from the last m/c leaking fluid everywhere. Or maybe its just my brake lines. This problem is on my 86 corolla GTS RWD with disc brakes all the way around. Could it be that I have a leak in my lines? Someone please give me some assistance.

[insert_car]

Could it be that I have a leak in my lines? Someone please give me some assistance.

well that was of coarse the first thing i thought of but i would think you would have noticed it or check it while bleeding. i'm not sure man, sorry

[Jess]

God just hates you. Says so in the bible.

Jk, Could be the booster..i guess. I know shit about brake boosters. As far as I can tell, there HAS to be air gettin in there from somewhere. Just dunno from where

[WiggiE]

Just keep bleeding them.....tap on the calipers with a rubber mallet to loosen any air bubbles....

If you are still seeing bubbles then keep bleeding....BTW did you bench bleed the MC before you put it on?

[Anderson]

No I didn't. I literally bled my brakes tonight for a good two hours. Maybe I am justing being impatient?

[WiggiE]

Drive it a little bit....then bleed them again......that's about all I can tell you.....make sure you watch the level of brake fluid ......there may be a leak in the system....

[CPMaverick]

Did you bench bleed the master cylinder?

Try gravity bleeding, just turn the bottle upside-down in the resevoir and crack all the bleeders. Don't touch the pedal. In a few minutes they'll start dripping, after about 30 minutes it usually purges most of the trapped air.

[Anderson]

No, I did not bench bleed the master cylinder. I'll try the gravity bleed after work tonight.