Alright, for a while now, my brakes have been feeling like there is air in the lines, but I've have bled the system twice now, and the pedal feel has not chaged at all. I was assuming it was the master cylinder, (no i was not loosing fluid at all) many people where I work (GM Dealership) agreed with me. So I ordered one through my work, which they got from CarQuest, a discount auto parts store. I get it the next day and in stall it, now while i'm bleeding the brakes, I find that there is no pressure to the back brakes....so i'pm very pissed, since I had equal pressure all around when I had bled them with the original master in there. So i bring it back and get my money back... but i find out that they can't get me another one untill the following tuesday... it was now saturday. so i said no way, and try other places around town... but no one carries it, except... AUTOZONE has one, just down the street. so i said ok, they deliver it same day to my work, but guess what... it's the wrong one!! it has a triangular bolt pattern the bolts it to the brake boost... mine is a rectangular pattern. So I'm calling everywhere again.... and it seems like the only place that has one is an hour drive away.... so I go get that after work... I get home and start bleeding the master per the tsrm... it seems to be working better, since the first one i had tried barely had any fluid coming out the side fitting on the master. So I finish doing that, put the lines on, tighten them down, get under the car and start to do the bleeding..... still nothing coming out the back......WTF.......... I want to drive my car... with more than parking and front brakes...I am confused on what it would be... idk how something could have been messed up while i was doing the install.....it doesn't make sence to me... My car has ABS by the way... maybe it could have something to do with that? or some type of valve in the braking system? any suggestions would be great. thank you.
Brake Master Cylinder?
- Thread starter supra90mkiii
- Start date
ABS is a computer controlled VALVE BOX. You can NOT bleed the brakes on your car like the non abs system, as I learned in a brake seminar given by Bendix Brakes Co.
The TSRM seems to say just bleed them like you don't have ABS, but I don't feel that is correct. I think you got air into the system at the master, and you'll have to bleed the system by cracking the lines loose all along the way, not starting out at the wheels.
Do each line connection like it was a bleeder screw at a caliper, until no air comes out, then move to the next connection in the line and bleed.
Or, tow the car to a shop and have it "power bled". Should not cost over an hours labor.
The TSRM seems to say just bleed them like you don't have ABS, but I don't feel that is correct. I think you got air into the system at the master, and you'll have to bleed the system by cracking the lines loose all along the way, not starting out at the wheels.
Do each line connection like it was a bleeder screw at a caliper, until no air comes out, then move to the next connection in the line and bleed.
Or, tow the car to a shop and have it "power bled". Should not cost over an hours labor.
tonight when i get home from worki'm going to use my vacuum pump at the wheels, and see if that does anything, then i'll try your way, thanks!
.....barely anything is coming out of the master at the side fitting... the one for the back brakes... fluid shoots out the front fitting... like normal... but the side one does barely anything... i was bleeding it for a good 10 minutes (the master). I'm assuming the master is bad again... idk what else it could be... so i broke down and bought a toyota one, $180ish, along with a blower resistor, cuz i want my low fan speed setting back.
thanks guys...
thanks guys...