I had some SS lines and caliper guides installed a little while ago, but not pads and rotors. So we bled the brakes to the current setup [20% lefts on pads]. Well I just put on some pads and rotors, and when compressing the calipers the fluid came out of the reservoir... it made sense, the pistons are not as far out and so there is less room in the system for the fluid. But I didnt know I was going to have this problem and didnt notice it until I saw the blue fluid on the ground under my car...

Well the brakes felt fine at low pressure and I was able to drive it a little before i went to bed in the brakes. When i began the bedding process i found myself pressing the pedal to the floor just to get pressure needed to bring the car down... I assumed it was part of the brakes getting their feel back with the new pads, but after i was done bedding, I noticed that i still have the same problem but only under hard braking... I checked the reservoir and the fluid is too the top, past max. Also when i am standing still, I can press the brake pedal halfway down and back up and it sounds someone is breathing real loud and it feels really really mushy.

Did I get any air into the system? I dont see how, since fluid was being pushed out, but i dont understand why it feels so mushy?

or did i break a seal on the reservior cap and whenever i use hard pressure, fluid leaks out instead of pressing the brakes... I mean i cant even stop hard enough to engage ABS?

Shoud I just try to remove the excess brake fluid? Is this a common occurance when there is too much fluid?

Thanks in advance.

Rich

That is definitely air in the system, unfortunately I do not know how to help you in that situation. What was used to bleed the brakes?

power bleeder... the brakes were fine before the pads and rotors were installed. whatever happened, it happened after the pads and rotors were replaced. I think I might just try to bleed the brakes again.. I just hope no air got into the ABS system, but with the way i was smashing the brakes during bedding, i cant be sure... but I'll know after I bleed again... I just dont want to have to go through all that.

If you used the power bleeder I would think it would be fine--there should be no chance of air in the system--but you never know. At least you didn't do it like me the first time and press the brake down while my friend tightened the bleeder screw afterwards. I felt exactly what your describing with my car on that day. Good luck.

yeah, it feels just like air... but it was bled with a powerbleeder, then the only thing that happened is the calipers were compressed and extra fluid came out the top.... I guess i should remove the excess fluid to see what may happen, it may be a pressure issue do to being over filled that causing problems. but i should probably bleed it anyway.

Having the reservoir over full for extended caliper pistons is only a problem in that fluid will spill when you depress the pistons. Something else is causing the soft pedal and it could be air in the system from the SS line changeout.

Get the pressure bleeder and a liter of new fluid. Then push 250cc through each rear caliper and 150cc through each front. That's enough fluid to completely flush each part of the system.

Having the reservoir over full for extended caliper pistons is only a problem in that fluid will spill when you depress the pistons. Something else is causing the soft pedal and it could be air in the system from the SS line changeout.

Get the pressure bleeder and a liter of new fluid. Then push 250cc through each rear caliper and 150cc through each front. That's enough fluid to completely flush each part of the system.

Thank you so much... gonna bleed it out first thing monday morning... hopefully that fixes my problem. It feels like air, I just hope it hasnt gotten into the ABS system.