hey guys, i've noticed that i almost have to push my breake peadle twice before i get the car to engauge the pads. I've check to make sure there is no air in the lines, i've bled them & check the pads, they have a bunch of life left. i'm starting to think that i should replace the master cylinder, what u guys think?

 

I think you still have air in the lines. Did you bleed the farthest wheel from the master cylinder first until no air bubbles come out, then the next closest, then the next, etc?

If the brake pedal doesn't slowly fall to the floor when you hold it, then it should be fine.

 

Press the brake down, with the car off...keep pressing. Does it slowly sink to the floor?
If yes, you need a new mc

 

I can push it once all the way to the floor & i get hardly any braking & then i pump it once & it is solid! Doesn't sink.

I have no idea how the air would have gotten in the lines, i didn't change anything, ya kno! just strange. I bled the front ones just for the hell of it coz it was eazy to get to while i was messin with something else. I'm just sick of driving & having to pump my breaks for them to work.. let alone the fact that it's not safe.

 

With what you described, it's just air in the lines. One tiny air bubble is enough to really mess up the feel of the pedal.

When bleeding brakes, one easy way for air to get in is if the reservoir doesn't stay full. If air gets pumped just one time into the master cylinder, you have to start the whole process over from scratch again... at the farthest wheel from the cylinder until no air comes out. Honda brake reservoirs aren't very big, and it's really easy to do. The front and rear brakes are actuated individually from the master cylinder, so it's possible to get air in one and not the other, however, the proportioning valve can allow air to cross over from one to the other.

You'll get it, keep working on it.

 

and god forbid if you have an air bubble between the MS and the PropValve. It took me serveral days of going through the procedure twice or three times a day to get that little f'ker out of there.
not bench bleeding my MS owned me. :doh:

 

see i'm having a real hard time with this because the brake reservoir was full.

let me run through this again!

1. Brakes are totaly normal
2. then i notice that my pedal has to go to the floor & then pump again to stop! (out of nowhere!)
3. i checked brake fluid (FULL)
4. checked to make sure pad's weren't extreamly worn or anything (pads = great condition)
5. STUMPED!

i bled the fronts last night just for the hell of it.. & no air was found.. i'm gonna check the backs tonight but i have no idea where this problem came from.. but the pedal doesn't sink once i pump it up & it's not leaking fluid anywhere! this is starting to drive me nuts!

 

does the front of the car dip excessivly when you brake? could be the rears messing with you. It could also be your MS going out but I don't think thats the right symptom....