Question about 1999 Chrysler Sebring

2 Answers

I have very spongy petal on my 99 Sebring Convertible. 141K Miles. No leaks, replaced Master Cylinder (lots of junk in it), rear brakes adjusted (they are drums), bled using vacuum bleeder 3 times...no difference. No brake indicators...just goes to the floor... Ideas?

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  • ljschalm Feb 08, 2010

    Already did this....

  • ljschalm Feb 08, 2010

    I have bled the system both ways with the same results. Spongy...once it gets to the floor I get the brakes to engage....

  • ljschalm Feb 10, 2010

    Hello,

    I verified the sliders are working, replaced the pads while I was in there...verified the calipers for leaks and wheel cylinders. I am not down brake fluid either...


  • ljschalm Feb 21, 2010

    I have been away and unable to work the problem, but will restart tomorrow. Found seeping from LF caliper, replaced it, no difference.

    I am believing I have contamination. I am going to rebuild wheel cyl and RF caliper. Any other comments?

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  • Master
  • 1,068 Answers

Yes that is the slides on the front caliper they are most likely stuck and not allowing the caliper to travel. have you check these yet?

Posted on Feb 08, 2010

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  • michael schultz
    michael schultz Feb 08, 2010

    okay so you check the slide and they are fine? did you remove the drums to check if the wheel cylinders are leaking???



  • michael schultz
    michael schultz Feb 10, 2010

    okay well you either have a defective master or you didn't get out all the old fluid and it is still contaminated . so what i would do is a full flush of the system complete and make sure all the new fluid is fully in the system front to back. if you still have the falling pedal replace the master.

    make sure when you replace it you follow the instruction to a "t" and bench bleed the new master till all the air is out and then re bleed the system fully. when putting the new master in you can trap air at the brake line connection to master and will take awhile to get out.

    so by flushing the system fully before you determine the master is faulty will asure you have all the air out.

    let me know how you make out.


  • michael schultz
    michael schultz Feb 21, 2010

    like i suggested before. you have to pull back the boot's on the rear wheel cylinder because they can be leaking but not externally. but replacing them is a great idea and flushing the system and replacing the leaky caliper had to be done. but like i said from the start you have contamination and was why i suggested to flush the entire system. good luck and keep us posted!

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  • Master
  • 11,896 Answers

You will need to first bleed the master cylinder making sure the fluid level does not go below 1/4 full. Do this twice, then do both sides of the brake system.

Posted on Feb 08, 2010

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  • Nate Stansfield
    Nate Stansfield Feb 08, 2010

    Have you tried to manually bleed not using a vacuum? When pressing on the brakes and pumping them up, does it get hard at all or spongy the entire time? Does it get hard for a while and then loose pressure? If that's the case, then there is a leak somewhere.

  • Nate Stansfield
    Nate Stansfield Feb 10, 2010

    undo the brake line at the Tee where it gos to both rear wheels and
    have your helper give it a good pump and see what kind of pressure you
    have.

    if it is good there then look at both rear cylinders on my buddy's
    truck we went through 3 bottles of fluid and it still had bad pressure
    we replace both rear cylinders and it was fixed I took one apart to see
    what was going on and it was full of gunk and sediment.

    Also check the clips by the brakes, for some reason those stupid little thing cause problems.


  • Nate Stansfield
    Nate Stansfield Feb 21, 2010

    I definately agree with you. I would do the same exact thing. Rebuild it and use fresh fluid.

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