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Low brake pedal from bad wheel bearings? 200 1985

posted by  I-5 Librarian on  Wed Apr 26 07:24 CST 2017
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If the master cylinder, calipers and rotors are new, and no air is in the system, I understand that a low brake pedal only on the first application of brakes after travel on the highway can be caused by wheel wobble. I would like to understand this problem and how to repair it.








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    Low brake pedal from bad wheel bearings? 200 1985

    posted by  jwalker on  Wed Apr 26 08:35 CST 2017
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    last visit: Fri Jun 6 08:39 CST 2014
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    More likely old brake hoses. See my post in your original thread.








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      Low brake pedal from bad wheel bearings? 200 1985

      posted by  I-5 Librarian on  Wed Apr 26 22:32 CST 2017
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      So, they are not releasing pressure,causing drag, causing heat, and bubbles resulting in low pedal. Is this correct?

      The caliper drag was noticed when cold, after my install of new calipers and rotors. The pedal feels great when cold. Solid and right up where it feels right.

      So, brake hoses I guess.

      Are these hard to replace? Expensive?

      Thanks.








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    Low brake pedal from bad wheel bearings? 200 1985

    posted by  Volvo From Heck on  Wed Apr 26 08:08 CST 2017
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    last visit: Mon Oct 13 20:56 CST 2014
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    I'm not sure what's meant by "wheel wobble" -- that is -- the wheel actually wobbling. A very loose wheel bearing could cause the the hub (along with the rotor, wheel and tire) to not run straight when side loads (cornering) are applied. That, and/or a warped rotor could cause the rotor to push each pad back slightly with each rotation. The increased clearance, pad to rotor, has to be taken up before the pads will do their job -- resulting in a low pedal until the clearance is a normal "just barely touching". -- Dave







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