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brake problem..

Discussion in 'General Tech and Maintenance' started by eg6sir, Jun 19, 2006.

  1. eg6sir

    eg6sir Supa Mod Moderator VIP

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    ok.. i changed my brakes today and my brakes feels really soft... worse than before i changed them... i know how to change brakes so i know i did it right, i just dont know what would cause this.. maybe i forgot to do something.. please help
     
  2. phyregod

    phyregod !!YTINASNI

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    give them a little time to seat properly. New pads on new/resurfaced rotors will take a little time to "break in". this is amplified a bit when doing all four wheels at once.

    After about a week, look at the rotors and check to see if the pads are making contact all the way around. if you have rusty surfaces anywhere on the rotor faces you need to see why the pad hasn't seated properly. Could be due to improper re-installation.
     
  3. TurboMirage

    TurboMirage YEEAAAHHH VIP

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    and the fix would be? ;)
     
  4. eg6sir

    eg6sir Supa Mod Moderator VIP

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    i took out the old ones.. put the new ones in.. bolted everything up..

    it stops.. i just have alot of pedal travel..
     
  5. phyregod

    phyregod !!YTINASNI

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    Once the pads are hitting the disks firmly (as opposed to hitting with pad edges or corners) the pedal should firm up. Or he could have blown a MC seal. who knows.
     
  6. eg6sir

    eg6sir Supa Mod Moderator VIP

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    i'll probably run by my mechanics house tomorrow sometime to see what he thinks.. hes a friend of mine..
     
  7. GSRCIVICTN

    GSRCIVICTN Lost in a sea of rednecks

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    Clamp off all 4 of your brake lines at the wheel ends and press the pedal. If it is still soft, you have a leak somewhere between the MC and the clamps or the MC is bad. +1 on the pads taking time to seat.
     
  8. eg6sir

    eg6sir Supa Mod Moderator VIP

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    i guess i'll drive on them for a few days and see if they get better.. if not.. i dunno then.. i'll just have to get them checked out..
     
  9. reckedracing

    reckedracing TTIWWOP VIP

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    lol, you crack me up
    some questions... what kind of car with what brakes?
    disc/drum?
    did you clean the discs/drums if you replaced them?
     
  10. eg6sir

    eg6sir Supa Mod Moderator VIP

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    its a 94 VX with stock brakes.. i just changed the pads.. i didnt mess with anything else, so i dont know where i went wrong.. hell i've changed my brakes in the dark with an orange streetlight only.. and they came out fine..
     
  11. reckedracing

    reckedracing TTIWWOP VIP

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    did you replace the existing with like-kind pads?
     
  12. eg6sir

    eg6sir Supa Mod Moderator VIP

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    ????

    i just got Duralast Gold pads..
     
  13. reckedracing

    reckedracing TTIWWOP VIP

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    like-kind = the same brand or same performance specs...

    lets say you went from some EBC green stuff pads, to duralast gold pads...
    this could cause you to think something is wrong with your brakes...

    know what i mean?
    do you know what kind of pads were on it before?
     
  14. reckedracing

    reckedracing TTIWWOP VIP

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    while sitting still with the car idling, if you pump your brake pedal, and then apply constant pressure, does it drop?
     
  15. eg6sir

    eg6sir Supa Mod Moderator VIP

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    ok.. when i pump my brakes when the car is off.. it gets firm.. start the car and the pedal drops..
    while the car is on, just idling.. i pump the brakes and the apply pressure and it does nothing.. it almost feels like the pedal is going to the floor...
     
  16. TurboMirage

    TurboMirage YEEAAAHHH VIP

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    can you re-bleed them?
     
  17. eg6sir

    eg6sir Supa Mod Moderator VIP

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    i bled the brakes.. alot.. then refilled the brake fluid..
     
  18. reckedracing

    reckedracing TTIWWOP VIP

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    why were you bleeding the brakes if all you did was change pads?
    how did you bleed them?
    did the master ever run low/out of fluid?

    sounds to me like you have air in your line/lines...

    this is from the vacuum your motor creates...
    wait... it does nothing? but it feels like its going to the floor?
    either it doesn;t drop, or it does? which is it?
     
  19. eg6sir

    eg6sir Supa Mod Moderator VIP

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    my brakes work when i really step on them... but it seems as if they dont engage until the pedal has traveled a bit..

    well.. the nut on the back of the caliper.. i loosen'd it to get the caliper back over the pads

    and yes the master was at the low level before i put more fluid in..

    when i say nothing, i mean the pedal doesnt stiffen .. it goes for the floor..
     
  20. reckedracing

    reckedracing TTIWWOP VIP

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    holy christ man, are you crazy?

    you can just push in the caliper with either big pliers, or a c clamp
    i use big pliers as its much faster

    you have air in your lines bub...
    did the master go to the "low line" or was it dry?
    if you let the master get that low then thats where the air entered, so it needs to work its way all the way to your bleeders to get out of the system...

    start with the furthest wheel and bleed, bleed and bleed some more...
    pump pump pump, hold pressure on the pedal, crack the bleeder, pedal drops to the floor, then tighten the bleeder before releasing the pedal or it will suck air back in...

    keep your car level, preferably with jack stands...

    or get one of those fancy vacuum bleeder deals, like 30-40 bucks at sears i think...
    i bought one but have never used it yet
     
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