grabbem88

or proportion valve?....any time you push the piston back(especially with cap still on) you create pressure inside the whole system..

monkeydude3

well I got confused because I believe there are multiple cars asking the same questions here [:@]

grabbem88

don't get mad at me.....i'm going off of what iv'e experienced/trained in school.

monkeydude3

I'm not mad I was just replying to one car and by mistake someone thought I was referring to the other car.

I have no idea how changing rotors would make you lose pedal. The only thing possible is something got disturbed in the brake system that needs to be bled out.

grabbem88

that's what i was getting at if he pushed the pistons in the calliper...that's a disruption.
i didn't think you was mad...just saw the red face you like to use.

monkeydude3

I used that face because one guys problem became two guys' problems which both had completely different cars, and as such I had no idea wtf to say lol

and yeah on some older cars you can get away with pushing the caliper in w/o opening the bleeder, but on most ABS cars, especially mustangs you dont want to. And generally, it only costs you pennies of fluid to top off and if you really are on the ball to give each brake a bleeding

Flyingmau5

yeh... dont drive too fast and remember to downshift

SpecterGT260

well, i was on my way to a shop to have them look at it (and i was driving veeeerrrrryyyy carefully) and the brakes started feeling better as i went along. I may try pumping them still with the cap off (because i pushed in the pisons with the cap on still....) so maybe that might make it pick up some.... i was pretty sure there wouldnt be any air in there tho. I think the problem was the finish on the rotors was no good, and i just had to wear through it. i dunno. what good would pumping the brakes with the mc cap off?