Question about 1995 Chevrolet Blazer

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Spongy brakes after bleeding

I replaced all 4 brakes and thay still spongy after bleeding,why?

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  • Anonymous Mar 28, 2014

    The machanic put all new calipers and pads and the brakes are spongy and are worst than before they were changed and he bleed the breaks

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  • Master
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Brakes being spongy means there's still some air in the system!
Hope you are bleeding the system the correct way.
You have to start bleeding right hand side rear wheel first if your car is a LHD ( left hand drive) thn you come to the rear left side thn to the front side and last to the front left side.
Let me ask ..on bleeding is the pressure of the fluid coming out high?
Upon bleeding do you still get bubbles or there are no bubbles seen?
If not seen thn you will have to either replace the brake mastercylinder or overhaul it..... its better you replace it.

Hope this helps!

Posted on May 12, 2009

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Sometimes if you are not carefull air can get trapped in the brake lines or in the brake booster......

you should get them checked""

"i would be carefull driving"

but if you dont think air got trapped in there.....you should try upgrading those rubber hoses to steel kind.....

hope this helps XD

Posted on May 12, 2009

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  • Master
  • 607 Answers

If the brakes are spongy, THERE IS STILL AIR IN THE SYSTEM. Bleed brakes again, and a 3rd time if necessary. If you are MANUALLY bleeding, by having a helper pump up the brakes, make sure they hod the PEDAL DOWN till you close the bleeder valve, or you will **** back in more air. Start bleeding the brakes from FURTHEST WHEEL, which is usually R/R. Hope this helps

Posted on May 12, 2009

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More likely is a worn master cylinder. Replacement is necessary. This is not typically a diffucult job, but important to do it right. It sounds like you have the brake bleeding down, and you will need to do this after the master cylinder replacement! Be sure to bleed all 4 corners!

Regards,

Brian

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